毛竹林土壤呼吸及其三个生物学过程的时空格局变化研究
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摘要
土壤呼吸即土壤表面CO2释放量,包括植物根系呼吸、土壤微生物呼吸和土壤动物呼吸等三个生物学过程。土壤呼吸及其三个生物学过程变异机理将直接反应陆地生态系统土壤呼吸的强弱,并对植物生长及生态系统碳平衡产生影响。因此,森林生态系统土壤呼吸及组分分离、量化是当前碳循环研究中的热点和难点问题。本研究采用LI-Cor-8100开路式土壤碳通量测量系统,结合壕沟法排除根系,电棒+卫生球法排除土壤动物等,对毛竹(phyllostachys edulis)林200m、400m和700m海拔的土壤呼吸及其三个生物学过程的时空动态变化展开研究,精确区分、量化各组分呼吸在土壤总呼吸中的贡献率,同时测定空气温度、土壤温度及土壤含水率等环境因子,毛竹林地下根系生物量、土壤动物类群及微生物生物量(碳)等生物因子,确定土壤总呼吸及其三个生物学过程呼吸的影响因子,结果表明：
(1)3个海拔毛竹林土壤总呼吸及组分呼吸昼夜变化均与空气温度、土壤温度昼夜变化相类似,呈单峰曲线,最小值均出现在晚间02：00左右,但最大值出现的时间有一定差异。总呼吸峰值出现在下午15：00左右,根系呼吸在中午11：00达到最大值,土壤微生物呼吸昼夜变化较为平缓,最大值出现在中午11：00～5：00,土壤动物呼吸最大值也出现在中午11：00～5：00。季节变化同样表明土壤总呼吸及组分呼吸与土壤温度、空气温度变化趋势一致,最大值出现在7、8月份,最小值在11、12月。空间变异表现为随着海拔升高,土壤总呼吸、根系呼吸及微生物呼吸均减小,而土壤动物呼吸为200m海拔最大,400m海拔最小。引起这种空间变异的原因,除了由于海拔变化引起的土壤温湿度变化外,生物因子(根系、微生物及动物生物量)及土壤因素也在一定程度上起到了关键作用。
(2)3个海拔2008年8月土壤总呼吸日变化范围为3.89μmol·m-2·s-1～5.49μmol·m-2·s-1,3～12月变化范围为3.10μmol·m-2·s-1～3.60μmol·m-2·s-1;2009年三者日均值变化范围为3.36μmol·m-2·s-1～4.05μmol·m-2·s-13～11月年均值为2.58μmol·m-2·s-1～3.12μmol·m-2·s-1。由碳通量特征来看,2008年3个海拔土壤总呼吸碳释放量为881.61 g C m-2～1028.35 g Cm-2,比2009年碳通量增大了12.74%-18.03%,在热带、亚热带森林土壤呼吸年通量范围内(345 g C m-2～1520gC·m-2·a-1)。
根系呼吸2008年日贡献率为51.73%～55.53%,年贡献率为33.51%-38.90%,2009年日贡献率为44.95%-48.97%,年贡献率34.79%～41.89%,3～12月碳通量为323.93 g Cm-2～431.48 g C m-2,占土壤总呼吸的36.74%～41.96%；2009年为277.24 g C m-2～401.25 gC m-2,占土壤总呼吸的37.05%～44.70%；200m海拔最大,总碳通量比400m和700m分别大3.40%和14.20%。
2008年200m、400m和700m海拔土壤异养呼吸(微生物呼吸、动物呼吸)日贡献率为42.85%～47.87%(其中微生物呼吸为35.31%～39.45%,动物呼吸为7.54%～8.42%)；2009年为52.34%～53.43%(其中微生物呼吸为45.42%～45.52%,动物呼吸为6.92%～7.91%。)。从年贡献率来看,2008年3个海拔土壤异养呼吸年贡献率为59.02%～65.36%(其中微生物呼吸为52.07%～57.67%,动物呼吸为6.95%～7.69%),2009年异养呼吸年贡献率为54.60%～64.86%(其中微生物呼吸为47.41%～57.04%,动物呼吸为7.19%～7.82%)。从年碳通量来看,3个海拔2008年3～12月异养呼吸碳通量为557.68 gC m-2～626.63 g C m-2,占土壤总呼吸的57.36%～63.93%(土壤动物呼吸为69.42 g C m-2～87.94 g C m-2,占土壤总呼吸的7.87%～8.55%,微生物呼吸为488.26 g C m-2～544.75 g Cm-2,占土壤总呼吸的49.49%-55.38%)：2009年3-11月异养呼吸碳通量为470.90 g Cm-2～500.93 g C m-2,占土壤总呼吸的55.12%～63.63%(土壤动物呼吸为60.81 g C m-2～74.57g C m-2,占土壤总呼吸的8.13%～8.81%,微生物呼吸为410.18 g C m-2～429.12 g C m-2,占土壤总呼吸的46.99%～54.82%)。
2008年毛竹林土壤根系呼吸比异养(微生物呼吸、动物呼吸)呼吸碳通量小195.15gC m-2～233.75 g C m-2;2009年小99.65 g C m-2～193.66 g C m-2,由此我们可以看出,土壤微生物和动物呼吸在很大程度上是土壤表面CO2通量的优势组成部分。
(3)土壤温度与土壤总呼吸、根系呼吸、微生物呼吸和动物呼吸的相关性均达到极显著水平(P<0.01)。其中土壤总呼吸与土壤不同层温度(0～10cm,10～20cm和20～30cm)的相关性均达到显著水平(P<0.05),与10cm处土壤温度相关性最大,达到极显著水平(P<0.01)。Q10量化土壤呼吸的温度敏感性发现,土壤微生物呼吸温度敏感性比根系呼吸温度敏感性更高；土壤动物呼吸与温度相关性相(R2)比微生物呼吸稍有减小(R2),但从Q10值来看土壤动物的温度敏感性大于根系呼吸和微生物呼吸的温度敏感性。与土壤呼吸总与土壤温度之间的相关性比,土壤总呼吸与土壤含水量的相关性较小,但消除土壤温度的影响后,标准化的土壤呼吸与土壤含水率相关性显著增强(P<0.05)。土壤含水率是引起根系呼吸变化的重要因素之一,二者呈极显著线性相关性(P<0.01),而对土壤微生物和动物呼吸的影响不大。土壤水热双因子模型优于土壤温度或含水率单因子模型,土壤温度和土壤含水率的交互作用共同解释了不同海拔土壤总呼吸的50%以上,根系呼吸变化的77.10%～90.30%,土壤微生物呼吸的86.50%～88.90%,土壤动物呼吸的68.30%～76.20%,表明亚热带毛竹林土壤组分呼吸及土壤总呼吸均受土壤温度和土壤湿度的共同影响。
土壤微生物呼吸与细菌、放线菌数量呈极限值正相关关系(P<0.01),而与真菌数量不存在相关关系(P>0.05),与微生物量碳存在显著相关性(P<0.05)。根系生物量、土壤动物区系的差异也会导致组分呼吸大小,毛竹林地下活根根系生物量解释了土壤呼吸的65.99%～70.26%,而土壤中的主要动物类群对土壤呼吸的影响大都达到显著水平,土壤各类群动物总数可以解释土壤表面CO2释放量的55.40%～60.10%。
(4)健康,较健康,亚健康和不健康4种不同健康状况毛竹林土壤总呼吸大小为,健康林>较健康林>亚健康林>不健康林,多元方差分析表明4种健康状况土壤总呼吸之间差异极显著(P<0.01)。土壤微生物呼吸贡献率大小为健康林>较健康林>亚健康林>不健康林；根系呼吸贡献率大小为亚健康林>健康林>较健康林>不健康林；土壤动物呼吸贡献率为健康林>较健康林>亚健康林>不健康。
Soil respiration (Rs) is the process that soil releases CO2 to atmosphere (also called soil surface CO2 flux), and is the important part of carbon cycling in terrestrial ecosystems. Soil respiration includes plant root respiration, soil microbial and fauna respiration. The respiration and the variation mechanism of the three components will be direct response to the intensity of soil respiration and will affect plant growth and ecosystem carbon balance. Thus separate and quantify the different components (root respiration, soil microbial and fauna respiration) of soil respiration is critical to learn the carbon cycling of forest ecosystem and is the focal point in current. In this study, using infrared gas exchange analyzer (Li-Cor-8100), we combined with trench method excluded roots, naphthalene combining with electric bar(220V) exclude soil faunas measuring the soil respiration and its three biological processes (root respiration, soil microbial respiration and fauna respiration) from spatial and temporal scale in Mao bamboo plantations. Soil temperature, moisture, the biomass of he microbe, root and fauna were measured at the same time. Main objective was to estimate the contribution of root respiration, soil microbial and soil fauna respiration to soil respiration and determine the control factor of the total soil respiration and the respiration from different components, the results showed that:
(1)Total soil respiration and the three components at the three elevations had similar diurnal variation trend (single peak curve) with those of air temperature and soil temperature. The minimum values always occurred at 02:00 at night, neither did the maximum values. Total soil respiration peaked in the afternoon around 15:00, root respiration peaked at 11:00, both soil microbial respiration and fauna had gentle diurnal variation and the maximum occurred at 11:00-15:00. Seasonal variation showed that total soil respiration and the three components respiration consistent with soil temperature and air temperature, had a maximum in 7-8 months and minimum in 11-12 months. Spatial variation showed that soil respiration, root respiration and microbial respiration reduced with elevation increased, while fauna respiration had the maximum at 200m altitude,400m had the smallest respiration. The reasons for this spatial variability are due to soil temperature and humidity, the biological factors (roots, microbes and animal biomass) and soil factors.
(2)The average daily respiration of the total CO2 efflux of 200m,400m and 700m altitude varied from 3.89μmol·m-2·s-1 to 5.49μmol·m-2·s-1 in August 2008 and 3.36μmol·m-2·s-1-4.05μmol·m-2·s-1 in August 2009. During the periods from Mar to Dec in 2008 the average annual respiration of this three elevations was 3.10μmol·m-2·s-1-3.60μmol·m-2·s-1,2009 years was 2.58μmol·m-2·s-1-3.12μmol·m-2·s-1. Carbon (C) flux were 881.61 gC m-2-1028.35 g C m-2 in 2008, increased 12.74%-18.03% than in 2009 and in the range in tropical and subtropical forest (345 gC m-2 a-1-1520 gC m-2 a-1).
The daily contribution rate of root respiration to total soil respiration was 51.73%-55.53% and annual contribution rate was 33.51%-38.90% in 2008, while in 2009 the daily contribution rate was 44.95%-48.97% and annual contribution rate was 34.79%-41.89%.200m altitudes had the highest root respiration contribution,700m was the minimum. Different regions, ecosystems and methods all had an impact on root respiration. C flux from root respiration during Mar to Dec varied between 323.93 g C m-2-431.48 g C m-2, accounting for 36.74%-41.96% of the total C flux in 2008; C flux varied from 277.24 g C m-2-401.25 g C m-2, accounting for 37.05%-44.70% of total soil respiration in 2009; 200m altitude had the largest C flux and more 3.40% than 400m and 14.20% than 700m.
The daily contribution rate of heterotrophic respiration(microbial respiration, fauna respiration) to total soil respiration of 200m,400m and 700m varied from 42.85%-47.87%(of which microbial respiration was 35.31%-39.45%, fauna respiration was 7.54%-8.42%) in 2008; while in 2009, the contribution rate was 52.34%-53.43%(of which microbial respiration was 45.42%-45.52%,6.92% animal breathing 7.91%). The annual contribution rate of heterotrophic respiration of the three altitudes were 59.02%-65.36%(of which microbial respiration was 52.07%-57.67%, fauna respiration was 6.95%-7.69%),2009 was 54.60%-64.86%(of which microbial respiration was 47.41%-57.04%, fauna respiration was 7.19%-7.82%). C flux from heterotrophic respiration during Mar to Dec was 557.68-626.63 g C m-2, accounting for 57.36%～63.93% of total C flux (of which soil fauna respiration was 69.42 g C m-2-87.94 g C m-2, accounting for 7.87%-8.55% of total soil respiration, microbial respiration was 488.26 g C m-2-544.75 g C m-2, accounting for of total soil respiration 49.49%-55.38%) in 2008; while in 2009, C flux from heterotrophic respiration was 470.9 g C m-2-500.93 g C m'2, accounting for 55.12%-63.63%of total soil respiration (fauna respiration was 60.81 g C m-2-74.57 g C m-2, accounting for 8.13%-8.81% of total soil respiration, microbial respiration was 410.18 g C m-2-429.12 g C m-2, accounting for 46.99%-54.82% of total soil respiration).
Heterotrophic respiration are the main components of soil surface CO2 flux.C flux from root respiration was 195.15 g C m-2-233.75 g C m-2 smaller than heterotrophic respiration in 2008 and 99.65 g C m-2-193.66 g C m-2 in 2009.
(3)The correlation between soil temperature and total soil respiration, soil microbial respiration and soil fauna respiration is significant exponent function(P<0.01). The relationship between total soil respiration and soil temperature at different depth (soil surface,0-10cm,10-20cm and 20-30cm) reached a significant level (P<0.05) and the correlation with soil temperature at 10cm depth reached the very significant level (P<0.01). Soil microbial respiration had higher Q10 than root respiration, while compared with microbial respiration, the relationship between soil fauna respiration and soil temperature was slightly, but Q10 values bigger than Q10 of root and microbial respiration.
Compared with the correlation between soil temperature and soil respiration, the correlation between soil respiration and soil water content was less apparent, but there was an apparent improvement in the correlation between standardized soil respiration (Rio) and soil water content(P<0.05) when the effect of soil temperature was removed. Soil water content had significant effect on root respiration and had very significant linear correlation (P<0.01), but the relationship between soil water content and fauna, microbial respiration was not significant.Compared with the one-dimensional (soil temperature and soil water content) equation, the R2 of the two-dimensional equation increased to some extent. The combination effect of soil temperature and soil water content could explained more 50% of soil respiration at different altitudes, root respiration could explained 77.1%-90.3%, soil microbial respiration explained 86.5%-88.9% and soil fauna explained 68.3%-76.2%, indicating that soil respiration and its components are affected by both soil temperature and soil water content in Mao bamboo forest in subtropical.
Microbial respiration showed a significantly positive correlation with the biomass of bacteria, actinomycetes (P<0.01) and microbial biomass C (P<0.05), while had no correlation (P>0.05) with fungi. Biomass of root and soil fauna components can also lead to differences in soil respiration, live underground root biomass could explain 65%-70% of soil respiration. The total numbers of the soil faunas could explained 55.4%-60.1% of soil respiration in Mao bamboo forest
(4) The total soil respiration of health, general health, sub-health and poor healthy Mao bamboo forest were healthy forest>the general healthy forest>sub-health forest>poor healthy forest and there was very significant difference between them (P< 0.01). Contribution of soil microbial respiration were health forest>general healthy forest>Sub-health forestpoor healthy forest; root respiration contribution rate was sub-health forest>health forest>general healthy forest>poor healthy forest; contribution of soil fauna respiration rate was healthy forest>general healthy forest>sub-health forest>poor healthy forest.
(1)3个海拔毛竹林土壤总呼吸及组分呼吸昼夜变化均与空气温度、土壤温度昼夜变化相类似,呈单峰曲线,最小值均出现在晚间02：00左右,但最大值出现的时间有一定差异。总呼吸峰值出现在下午15：00左右,根系呼吸在中午11：00达到最大值,土壤微生物呼吸昼夜变化较为平缓,最大值出现在中午11：00～5：00,土壤动物呼吸最大值也出现在中午11：00～5：00。季节变化同样表明土壤总呼吸及组分呼吸与土壤温度、空气温度变化趋势一致,最大值出现在7、8月份,最小值在11、12月。空间变异表现为随着海拔升高,土壤总呼吸、根系呼吸及微生物呼吸均减小,而土壤动物呼吸为200m海拔最大,400m海拔最小。引起这种空间变异的原因,除了由于海拔变化引起的土壤温湿度变化外,生物因子(根系、微生物及动物生物量)及土壤因素也在一定程度上起到了关键作用。
(2)3个海拔2008年8月土壤总呼吸日变化范围为3.89μmol·m-2·s-1～5.49μmol·m-2·s-1,3～12月变化范围为3.10μmol·m-2·s-1～3.60μmol·m-2·s-1;2009年三者日均值变化范围为3.36μmol·m-2·s-1～4.05μmol·m-2·s-13～11月年均值为2.58μmol·m-2·s-1～3.12μmol·m-2·s-1。由碳通量特征来看,2008年3个海拔土壤总呼吸碳释放量为881.61 g C m-2～1028.35 g Cm-2,比2009年碳通量增大了12.74%-18.03%,在热带、亚热带森林土壤呼吸年通量范围内(345 g C m-2～1520gC·m-2·a-1)。
根系呼吸2008年日贡献率为51.73%～55.53%,年贡献率为33.51%-38.90%,2009年日贡献率为44.95%-48.97%,年贡献率34.79%～41.89%,3～12月碳通量为323.93 g Cm-2～431.48 g C m-2,占土壤总呼吸的36.74%～41.96%；2009年为277.24 g C m-2～401.25 gC m-2,占土壤总呼吸的37.05%～44.70%；200m海拔最大,总碳通量比400m和700m分别大3.40%和14.20%。
2008年200m、400m和700m海拔土壤异养呼吸(微生物呼吸、动物呼吸)日贡献率为42.85%～47.87%(其中微生物呼吸为35.31%～39.45%,动物呼吸为7.54%～8.42%)；2009年为52.34%～53.43%(其中微生物呼吸为45.42%～45.52%,动物呼吸为6.92%～7.91%。)。从年贡献率来看,2008年3个海拔土壤异养呼吸年贡献率为59.02%～65.36%(其中微生物呼吸为52.07%～57.67%,动物呼吸为6.95%～7.69%),2009年异养呼吸年贡献率为54.60%～64.86%(其中微生物呼吸为47.41%～57.04%,动物呼吸为7.19%～7.82%)。从年碳通量来看,3个海拔2008年3～12月异养呼吸碳通量为557.68 gC m-2～626.63 g C m-2,占土壤总呼吸的57.36%～63.93%(土壤动物呼吸为69.42 g C m-2～87.94 g C m-2,占土壤总呼吸的7.87%～8.55%,微生物呼吸为488.26 g C m-2～544.75 g Cm-2,占土壤总呼吸的49.49%-55.38%)：2009年3-11月异养呼吸碳通量为470.90 g Cm-2～500.93 g C m-2,占土壤总呼吸的55.12%～63.63%(土壤动物呼吸为60.81 g C m-2～74.57g C m-2,占土壤总呼吸的8.13%～8.81%,微生物呼吸为410.18 g C m-2～429.12 g C m-2,占土壤总呼吸的46.99%～54.82%)。
2008年毛竹林土壤根系呼吸比异养(微生物呼吸、动物呼吸)呼吸碳通量小195.15gC m-2～233.75 g C m-2;2009年小99.65 g C m-2～193.66 g C m-2,由此我们可以看出,土壤微生物和动物呼吸在很大程度上是土壤表面CO2通量的优势组成部分。
(3)土壤温度与土壤总呼吸、根系呼吸、微生物呼吸和动物呼吸的相关性均达到极显著水平(P<0.01)。其中土壤总呼吸与土壤不同层温度(0～10cm,10～20cm和20～30cm)的相关性均达到显著水平(P<0.05),与10cm处土壤温度相关性最大,达到极显著水平(P<0.01)。Q10量化土壤呼吸的温度敏感性发现,土壤微生物呼吸温度敏感性比根系呼吸温度敏感性更高；土壤动物呼吸与温度相关性相(R2)比微生物呼吸稍有减小(R2),但从Q10值来看土壤动物的温度敏感性大于根系呼吸和微生物呼吸的温度敏感性。与土壤呼吸总与土壤温度之间的相关性比,土壤总呼吸与土壤含水量的相关性较小,但消除土壤温度的影响后,标准化的土壤呼吸与土壤含水率相关性显著增强(P<0.05)。土壤含水率是引起根系呼吸变化的重要因素之一,二者呈极显著线性相关性(P<0.01),而对土壤微生物和动物呼吸的影响不大。土壤水热双因子模型优于土壤温度或含水率单因子模型,土壤温度和土壤含水率的交互作用共同解释了不同海拔土壤总呼吸的50%以上,根系呼吸变化的77.10%～90.30%,土壤微生物呼吸的86.50%～88.90%,土壤动物呼吸的68.30%～76.20%,表明亚热带毛竹林土壤组分呼吸及土壤总呼吸均受土壤温度和土壤湿度的共同影响。
土壤微生物呼吸与细菌、放线菌数量呈极限值正相关关系(P<0.01),而与真菌数量不存在相关关系(P>0.05),与微生物量碳存在显著相关性(P<0.05)。根系生物量、土壤动物区系的差异也会导致组分呼吸大小,毛竹林地下活根根系生物量解释了土壤呼吸的65.99%～70.26%,而土壤中的主要动物类群对土壤呼吸的影响大都达到显著水平,土壤各类群动物总数可以解释土壤表面CO2释放量的55.40%～60.10%。
(4)健康,较健康,亚健康和不健康4种不同健康状况毛竹林土壤总呼吸大小为,健康林>较健康林>亚健康林>不健康林,多元方差分析表明4种健康状况土壤总呼吸之间差异极显著(P<0.01)。土壤微生物呼吸贡献率大小为健康林>较健康林>亚健康林>不健康林；根系呼吸贡献率大小为亚健康林>健康林>较健康林>不健康林；土壤动物呼吸贡献率为健康林>较健康林>亚健康林>不健康。
Soil respiration (Rs) is the process that soil releases CO2 to atmosphere (also called soil surface CO2 flux), and is the important part of carbon cycling in terrestrial ecosystems. Soil respiration includes plant root respiration, soil microbial and fauna respiration. The respiration and the variation mechanism of the three components will be direct response to the intensity of soil respiration and will affect plant growth and ecosystem carbon balance. Thus separate and quantify the different components (root respiration, soil microbial and fauna respiration) of soil respiration is critical to learn the carbon cycling of forest ecosystem and is the focal point in current. In this study, using infrared gas exchange analyzer (Li-Cor-8100), we combined with trench method excluded roots, naphthalene combining with electric bar(220V) exclude soil faunas measuring the soil respiration and its three biological processes (root respiration, soil microbial respiration and fauna respiration) from spatial and temporal scale in Mao bamboo plantations. Soil temperature, moisture, the biomass of he microbe, root and fauna were measured at the same time. Main objective was to estimate the contribution of root respiration, soil microbial and soil fauna respiration to soil respiration and determine the control factor of the total soil respiration and the respiration from different components, the results showed that:
(1)Total soil respiration and the three components at the three elevations had similar diurnal variation trend (single peak curve) with those of air temperature and soil temperature. The minimum values always occurred at 02:00 at night, neither did the maximum values. Total soil respiration peaked in the afternoon around 15:00, root respiration peaked at 11:00, both soil microbial respiration and fauna had gentle diurnal variation and the maximum occurred at 11:00-15:00. Seasonal variation showed that total soil respiration and the three components respiration consistent with soil temperature and air temperature, had a maximum in 7-8 months and minimum in 11-12 months. Spatial variation showed that soil respiration, root respiration and microbial respiration reduced with elevation increased, while fauna respiration had the maximum at 200m altitude,400m had the smallest respiration. The reasons for this spatial variability are due to soil temperature and humidity, the biological factors (roots, microbes and animal biomass) and soil factors.
(2)The average daily respiration of the total CO2 efflux of 200m,400m and 700m altitude varied from 3.89μmol·m-2·s-1 to 5.49μmol·m-2·s-1 in August 2008 and 3.36μmol·m-2·s-1-4.05μmol·m-2·s-1 in August 2009. During the periods from Mar to Dec in 2008 the average annual respiration of this three elevations was 3.10μmol·m-2·s-1-3.60μmol·m-2·s-1,2009 years was 2.58μmol·m-2·s-1-3.12μmol·m-2·s-1. Carbon (C) flux were 881.61 gC m-2-1028.35 g C m-2 in 2008, increased 12.74%-18.03% than in 2009 and in the range in tropical and subtropical forest (345 gC m-2 a-1-1520 gC m-2 a-1).
The daily contribution rate of root respiration to total soil respiration was 51.73%-55.53% and annual contribution rate was 33.51%-38.90% in 2008, while in 2009 the daily contribution rate was 44.95%-48.97% and annual contribution rate was 34.79%-41.89%.200m altitudes had the highest root respiration contribution,700m was the minimum. Different regions, ecosystems and methods all had an impact on root respiration. C flux from root respiration during Mar to Dec varied between 323.93 g C m-2-431.48 g C m-2, accounting for 36.74%-41.96% of the total C flux in 2008; C flux varied from 277.24 g C m-2-401.25 g C m-2, accounting for 37.05%-44.70% of total soil respiration in 2009; 200m altitude had the largest C flux and more 3.40% than 400m and 14.20% than 700m.
The daily contribution rate of heterotrophic respiration(microbial respiration, fauna respiration) to total soil respiration of 200m,400m and 700m varied from 42.85%-47.87%(of which microbial respiration was 35.31%-39.45%, fauna respiration was 7.54%-8.42%) in 2008; while in 2009, the contribution rate was 52.34%-53.43%(of which microbial respiration was 45.42%-45.52%,6.92% animal breathing 7.91%). The annual contribution rate of heterotrophic respiration of the three altitudes were 59.02%-65.36%(of which microbial respiration was 52.07%-57.67%, fauna respiration was 6.95%-7.69%),2009 was 54.60%-64.86%(of which microbial respiration was 47.41%-57.04%, fauna respiration was 7.19%-7.82%). C flux from heterotrophic respiration during Mar to Dec was 557.68-626.63 g C m-2, accounting for 57.36%～63.93% of total C flux (of which soil fauna respiration was 69.42 g C m-2-87.94 g C m-2, accounting for 7.87%-8.55% of total soil respiration, microbial respiration was 488.26 g C m-2-544.75 g C m-2, accounting for of total soil respiration 49.49%-55.38%) in 2008; while in 2009, C flux from heterotrophic respiration was 470.9 g C m-2-500.93 g C m'2, accounting for 55.12%-63.63%of total soil respiration (fauna respiration was 60.81 g C m-2-74.57 g C m-2, accounting for 8.13%-8.81% of total soil respiration, microbial respiration was 410.18 g C m-2-429.12 g C m-2, accounting for 46.99%-54.82% of total soil respiration).
Heterotrophic respiration are the main components of soil surface CO2 flux.C flux from root respiration was 195.15 g C m-2-233.75 g C m-2 smaller than heterotrophic respiration in 2008 and 99.65 g C m-2-193.66 g C m-2 in 2009.
(3)The correlation between soil temperature and total soil respiration, soil microbial respiration and soil fauna respiration is significant exponent function(P<0.01). The relationship between total soil respiration and soil temperature at different depth (soil surface,0-10cm,10-20cm and 20-30cm) reached a significant level (P<0.05) and the correlation with soil temperature at 10cm depth reached the very significant level (P<0.01). Soil microbial respiration had higher Q10 than root respiration, while compared with microbial respiration, the relationship between soil fauna respiration and soil temperature was slightly, but Q10 values bigger than Q10 of root and microbial respiration.
Compared with the correlation between soil temperature and soil respiration, the correlation between soil respiration and soil water content was less apparent, but there was an apparent improvement in the correlation between standardized soil respiration (Rio) and soil water content(P<0.05) when the effect of soil temperature was removed. Soil water content had significant effect on root respiration and had very significant linear correlation (P<0.01), but the relationship between soil water content and fauna, microbial respiration was not significant.Compared with the one-dimensional (soil temperature and soil water content) equation, the R2 of the two-dimensional equation increased to some extent. The combination effect of soil temperature and soil water content could explained more 50% of soil respiration at different altitudes, root respiration could explained 77.1%-90.3%, soil microbial respiration explained 86.5%-88.9% and soil fauna explained 68.3%-76.2%, indicating that soil respiration and its components are affected by both soil temperature and soil water content in Mao bamboo forest in subtropical.
Microbial respiration showed a significantly positive correlation with the biomass of bacteria, actinomycetes (P<0.01) and microbial biomass C (P<0.05), while had no correlation (P>0.05) with fungi. Biomass of root and soil fauna components can also lead to differences in soil respiration, live underground root biomass could explain 65%-70% of soil respiration. The total numbers of the soil faunas could explained 55.4%-60.1% of soil respiration in Mao bamboo forest
(4) The total soil respiration of health, general health, sub-health and poor healthy Mao bamboo forest were healthy forest>the general healthy forest>sub-health forest>poor healthy forest and there was very significant difference between them (P< 0.01). Contribution of soil microbial respiration were health forest>general healthy forest>Sub-health forestpoor healthy forest; root respiration contribution rate was sub-health forest>health forest>general healthy forest>poor healthy forest; contribution of soil fauna respiration rate was healthy forest>general healthy forest>sub-health forest>poor healthy forest.
引文
[1]Cox P M, Bett R A and Jones C D. Acceleration of global warming due to carbon-cycle feedbacks in a coupled climate model. Nature,2000,408:184-187
[2]WMO Greenhouse Gas Bulletin.Geneva:World Meteorological Organization/Global Atmosphere Watch. http://www mo.ch/web/arep/gaw/ghg/ghg-bulletin-en-03-06.pdf,2006
[3]Woodwell G M and Pecaneds E V. Terrestrial detritus and the arbon cycle. In:Carbon and the biosphere:Reiners W A.New York:United States Atomic Energy Commission,1973,303-327
[4]Broecker W S, Takahashi T, Simpson H J, et al. Fate of fossil fuel carbon dioxide and the global carbon budget. Science,1979,206:409-418
[5]Trabalca J R. Atmospheric carbon dioxide and the global carbon cycle. Washington DC:US Department of Energy,1985
[6]Tans P,Fung I P and Takahashi T. Observational constraints on the global atmospheric CO2 budget. Science,1990,247:1431-1438
[7]Nakazawa T. The variability and cycle of carbon dioxide and methane. Global Environmental Research, 1997,2:5-14
[8]Battle M, Bender M L, Tans P P, et al. Global carbon sinks and their variability inferred from atmospheric O2 and 13C. Science,2000,287:2467-2470
[9]Watson R T, H, Rodhe H. Oeschger and U Siegenthaler.1990. Greenhouse gases and aerosols. In:Houghton J T, G J Jenkins and J J Ephraums, eds. Climate change,1-40
[10]Walker B H and L Steffen. The nature of global change:In:Walker B H, W L Steffen J, and Canadell eds. The terrestrial biosphere and global change, IGBP book series 4 Cambridge University Press, 1999,1-18
[11]Sesio R A. Temperate foreste ecosystems in the global carbon cycle,Ambio.1992,21:274-277
[12]Siegenthaler U and L Sarmiento. Atmospheric carbon dioxide and the ocean. Nature,1993,365:119-125
[13]Lundegardhh H. Carbon dioxide evolution of soil and crop growth. Soil Sci,1927,23:417-453
[14]Sing J S, Gupta S R. Plant decomposition and soil respiration in terrestrial ecosystem. Bot Rev,1977,43(4):449-528
[15]Hanson P J, Edwards N T and Garten C T. Separating root and soil microbial contributions to soil respiration:A review of methods and observations. Biogeochemistry,2000,48:115-146
[16]Wiant H V. Has the contribution of litter decay to forest soil respiration been overestimated? For, 1967,65:408-409
[17]Raich J W and Schlesinger W H. The global C dioxide flux in soil respiration and its relationship to vegetation and climate. Tellus,1992,44:81-99
[18]Cheng W. Investigating short-term carbon flows in the rhizospheres of different plant species,using isotopic trapping. Agron J,1994,86:782-788
[19]Valentini R, Matteucci G and Dolman A. Respiration as themaindeterminant of carbon balance in European forests. Nature,2000,404:861-865
[20]O'Leary M H. Carbon isotopes in photosynthesis.Bioscience,1988,38:328-336
[21]方精云,朴世龙,赵淑清.C02失汇与北半球中高纬度陆地生态系统的C汇.植物生态学报,2001,25(5)：594-602
[22]蒋延玲,周广胜,赵敏,等.长白山阔叶红松林生态系统土壤呼吸作用研究.植物生态学报,2005,29(3)：411-414
[23]刘纪远,于贵瑞,王绍强,等.陆地生态系统碳循环及其机理研究的地球信息科学方法初探.地理研究,2003,22(4)：397-405
[24]罗勇,蓝文杰,王绍武.气候突变的情景及其对美国国家安全的愈义一简评美国国防部“秘密”报告,气候变化通讯,2004,3(1)：11-13
[25]Smart D R, Ferro A,Ritchie K, et al.On the use of antibiotics to reduce rhizosphere microbial-populations in root physiology and ecology investigation.Physiol Plant,1995,955:33-540
[26]Swinnen J, Van Veen J A and Merckx R.14C pluse-labelling of field-grown spring Wheat:an evaluation of its use in rhizosphere carbon budget estimations. Soil. Biochem,1994.26:161-170
[27]Vogt K A, Grier C C and Meie C E. Mycorhizal role in net primary production and nutriont cycling in Abies amabilis ecosys tems in western Washington Ecology,1982,63:370
[28]Fahey T J and Hughes J W. Fine root dynamics in a nortuern hardwood forest ecosystem Hubbard Brook Experimental forest. N H Journal of Ecology,1994,82(3):533-548
[29]Hendricks J J, Nadelhoffer K J and Aber J D. Assessing the role of fine roots in carbon and nutrient cycling. Trends in Ecology and Evolutionary Biology 1993,8:174-178
[30]Kelting D L, James A B, Gerry S E. Estimating roor respiration, microbial respiration in the rhizosphere, and root-free soil respiration in forest soils. Soil Biology and Biochemistry,1998,30(7):961-968
[31]Kuzyakov Y. Separating microbial respiration of exudates from root respiration in non-sterile soils:A comparison of four methods. Soil Biology and Biochemistry,2002,34:1621-1631
[32]Kuzyakov Y. Sources of CO2 efflux from soil and review of partitioning methods. Soil Biology and Biochemistry,2006,38(3):425-448
[33]Hogberg P, BuchmannN and read D J. Comments on Yakov kuzyakov's review "Sources of CO2 efflux from soil review of partitioning methods",Soil Biology and Biochemistry,2006,38(9):2997-2998
[34]Kuzyakov Y. Response to the comments by Peter Hogberg, Nina Buchmann and David J. Read on the review "Sources of CO2 efflux from soil and review of partitioning methods". Soil Biology and Biochemistry,2006,38(9):2999-3000
[35]Horwath W R, Regitzer K S and Paul E A.14C allocation in tree-soil systems.Tree Physiol,1994,14:1163-1176
[36]陆雅海,张福锁.根际微生物研究.土壤,2006,38(2)：113-121
[37]王振宇,吕金印,李凤明,等.根际沉积及其在植物-土壤碳循环中的作用.应用生态学报,2006,17(1)：1963-1968
[38]Anderson R V and Ineson P. Interaction between microorganisms and soil invertebrates in nutrient flux Pathways of forest ecosystems. Invertebrate microbial Interactions,1984,59-88
[39]Ineson P, Leonard M and Anderson J. Effect of collembolan grazing upon nitrogen and cation leaching
from decomposing leaf litter. Soil Biol Biochem,1982,14:601-605
[40]Seasted T T. The role of microarthropods in decomposition and mineralization processes. Ann Rev Entomol,1984,29:25-46
[41]Anderson J. Invertebrate-mediated transport processes in soils. Agric Ecosyst Environ,1988,24:5-19
[42]Didder W A M. Ecology of terrestrial enchytraeidae-review. Pedobiologia,1993,37:2-29
[43]De R P,Moore J,Zwart K,et al. Simulation of nitrogen mineralization in the below-ground food webs of two winter wheat fields. Appl Soil Ecol,1993,30:95-106
[44]Nadelhoffer K J and Raich J W. Fine root production estimates and belowground carbon allocation in forest ecosystems. Ecology,1992,73:1139-1147
[45]Hogberg P, Nordgren and N Buchmann. Large-scale forest girdling shows that current photosynthesis drives soil respiration. Nature,2001,411:789-792
[46]Giardina C P and Ryan M G. Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature. Nature,2000,404:858-861
[47]Cheng W. In situ measurement of root respiration and soluble C concentration in the rhizosphere. Soil Biol Biochem,1993,25(9):1189-1196
[48]O'leary M H. Carbon isotopes in photosynthesis. Bioscience,1988,38:328-336
[49]Nguyen C. Rhizodeposition of organic carbon by plants:mechanisms and controls. Agronomie,2003,23:375-396
[50]Schlesinger W H. Carbon balance in terrestrial detritus. Annual Review of Ecology and Systematics,1977,8:51-81
[51]Ryan M G and Gowers S T. Annual carbon cost of auto trophic respiration in boreal forest ecosystems in relation to species and climate. Geophys Res,1997,102(28):871-883
[52]Bonan G B. Physiological controls of the carbon balance of boreal forest ecosystems. Can. J. For Res, 1993,23:1453-1471
[53]Strirgl R G and Wickland K P. Effects of clean cut harvest on soil respiration in a jack pine-lichen wood land. Can.J.For Res,1998,28:534-539
[54]Yang Y S, Dong B, Xie J S, et al. A review of tree root respiration:significance and methodologies. Acta Phytoecologica Sinica,2004,28(3):426-434
[55]Hogg E H. Simulation of interannual responses of trembling aspen stands to climatic variation and insect defoliation in western Canada. Ecological Model,1999,114:175-193
[56]Desrochers A, Landhausser S M and Lieffers V J. Coarse and fine root respiration in aspen(Populus trernuloides).Tree Physiology,2002,22:725-732
[57]Burton A J and Pregitzer K S. Field measurements of root respiration indicate little to no seasonal temperature acclimation for sugar mapleand red pine. Tree Physiology,2003,23:273-280
[58]Lee K H and Tose S B. Soil respiration, fine root production and microbial biomass in Cottonwood and Loblolly pine plantations along a nitrogen fertilization gradient. Forest Ecology and Management,2003,185:263-273
[59]Bazin M J, Markham P, Scoot E M, et al. Population dynamics and rhizosphere interactions. In The rhizosphere. J.M. Lynch John.wiley, New York,1990,99-127
[60]Paul E A and Clark F E. Soil microbiology and biochemistry. Acadomic Press, New York,1989
[61]Dormaar J F. Effect of active roots on the decomposition of soil organic matter. Biology Fertility Soils,1990,19:121-126
[62]Kuzyakov Y. Review:factors affecting rhizosphere priming effects. Plant nutrition and soil science,2002,165:382-396
[63]Cheng W and Kuzyakov Y. Root effects on decomposition of organic matter. In:Wright, S. (ed):Roots and Soil management:Interactions Between Roots and Soils. Soil Science Society of America Book Series, Soil Science Society of America, Inc., Madison, Wisconsin,USA,2005
[64]Melillo J M, Aber J D and Muratore J F. Nitrogen and lignin control of hardwood leaf litter decomposition dynamics. Ecology,1982,63:621-626
[65]Patton W J,Schimel D S,Cole C V,et al. Analysis of factors controlling soil organic matter levels in Great Plains grasslands. Soil Sciences Society of American Journal,1987,51:1173-1179.
[66]Bowden R D,Nadelhoffer K J,Boono R D,et al. Contributions of aboveground litter,belowground litter,and root respiration to total soil respiration in a temperate mixed hardwood forest. Canadian Journal of Forest Research,1993,23:1402-1407
[67]Schimel D S,Braswell B H,Holland E A, et al. Climatic, edaphic and biotic controls over storage and turn over of carbon in soils. Global Biogeochemical Cycles,1994,8:279-293
[68]Gaudinski J B, Trumbore S E, Davidson E A, et al. Soil carbon Cycling in a temperate forest:radiocarbon-based estimates of residence times, sequestration rates and partitioning of fluxes. Biogeo chemistry,2000,51:33-69
[69]Zak D R, Tilman D, Parmente R R, et al. Plant production and soil microorganisms in late successional ecosystems:acontinental-scalcs study. Ecology,1994,75:2333-2347
[70]仲伟彦,殷秀琴和陈鹏.凉水自然保护区土壤动物群落结构特征.东北林业大学学报,1997,25(3)：80-85.
[71]杨效东,佘宇平.西双版纳热带森林雨季土壤动物群落组成与分布特征.东北林业大学学报,1998,26(6)：65-70.
[72]殷秀琴,李建东.羊草草原土壤动物群落多样性的研究.应用生态学报,1998,9(2)：186-188.
[73]刘红,袁兴中.中国东部山地森林土壤动物多样性.山地学报,2000,18(3)：221-225.
[74]Ohashi M, Finer L, Domisch T, et al. CO2 efflux from a red wood ant mound in a boreal forest. Agric For Meteorol,2005,130:131-136.
[75]Hanson R D G and Anderson J M. The effects of Collembolan grazing on microbial activity in decomposing leaf litter ecologia.1979,38:93-100
[76]Ingham R E.Trofymow J A,Ingheam E R, et al. Interactions of bacterial nutrient cycling and plant growth. Ecological Monographs,1985,55:119-140
[77]Tuben A and Roelofsma T A. Dynamic interactions between functional groups of soil arthropoda and microorganisms during decomposition of coniferous litte in microcosm. Experiments Biology and Fertility of Soils,1990,9:145-151
[78]Kletzschmar A and Ladd J M. Decomposition of carbon14 labelled plant material in soil:The influence of substrate location soil compaction and earthworm numbers. Soil Biochem,1993,25(6):803-809
[79]Bohlen P J and Edwards C A. Earth warm effects of N, dynamics and soil respiration in Microcosms receiving organic and in organic nutrients. Soil Biochem,1995,27(3):341-348
[80]Anderson V R, Coleman D C and Cole C V. Effectcts of saprotrophic grazing on net mineralitation. Ecological bulletins(stockholm),1981,33:201-216
[81]Kanekon, Mclean M A and Parkinson D. Do mites and collembola affect pine litter fungal biomass and microbial respiration? Appl Soil Ecol,1998,9:209-213
[82]Clements F E. Aeration and Air-Contents. Publication 315. Carnegie Institution of Washington. D C,1921
[83]Russet E J and Appleyard A. The Atmosphere of the Soil:Its Composition and the causes of Variation. Journal of Agricultural Science,1915,7:1-48
[84]Norman J M, Kucharik C J, Gower ST, et al. Comparison of Six Methods for Measuring Soil Surface Carbon Dioxide Fluxes. Journal of Geophysical Research,1997,102:28771-28777
[85]Lund C P, Riley W J, Pierce L L, et al. The Effects of Chamber Pressurezetion of Soil Surface CO2.Global Change Boiology,1999,5:269-281
[86]Kim J, S B. Verma. Carbon dioxide budget in a temperate grassland ecosystem. Journal of Geophysical Research,1992,97:6057-6063
[87]Kabwe K L, M J and Hendry G. W, et al. Lawrence. Quantifying CO2 fluxes from soil surfaces to the atmosphere. Journal of Hydrology,2002,260:1-14
[88]Janssens I A, A S, Kowalski B, et al. Assessing forest soil CO2 efflux:an in situ comparison of four techniques. Tree Physiology,2000.20(1):23-32
[89]Rustad L T and Huntington R D. Boone. Controls on soil respiration:Implications for climate change. Biogeochemistry,2000,48:1-6
[90]Janssens I A, A S, Kowalski, et al. Forest floor CO2 fluxes estimated by eddy covariance and chamber-based model. Agricultural and forest meteorology,2001,106(1):61-69
[91]李凌浩,韩兴国.陆地生物圈见：韩兴国,李凌浩,黄建辉主编.生物地球化学概论.北京：高等教育出版社；海德堡：施普林格出版社,1999,86-159
[92]Myeong H Y, Seung J J and Kauneyuki N. Comparison of field methods for measuring soil respiration:a static alkali absorption method and two dynamic closed chamber methods. Forest Ecology and Management,2002,170:189-197
[93]Kirita H. Reexamination of the absorption method of measure soil respiration under field condition: Effect of the size of the apparatus on CO2 absorption rates. Jap J Ecol,1971,21:37-42
[94]Bekku Y H, Koizumi T N and Iwaki H. Examination of four methods for measuring soil respiration. Applied Soil Ecology,1997,5:247-254
[95]King J A and Harrison R. Measuring soil respiration in field:an automated closed chamber system compared with portable IRGA and alkali absorption methods.Communications Soil Science and Plant Analysis,2002,33:430-423
[96]杨晶,李凌浩.土壤呼吸及其测定法.植物杂志,2003,5：36-37
[97]Aubinet M, Grelle A and Ibrom A. Estimates of the annual net carbon and water exchange of European forests:the EUROFLUX methodology. Advanced Ecololy Research.2000,30:113-174
[98]Subke J A and Tenhunen J D. Direct measurements of CO2 flux below a spruce forest canopy. Agric For Meteorol.2004,126:157-168.
[99]Billings S A, Richter D D and Yarie J. Soil carbon dioxide fluxes and profile concentrations in two boreal forests. Canadian Journal of forest research,1998,28:1773-1783
[100]Kim B Y, Ueyama M, Nakagawa F, et al. Assessment of winter fluxes of CO2 and CH4 in boreal forest soils of central Alaska estimated by the profile method and the chamber method:a diagnosis of methane emission and implications for the regional carbon budget Tellus,2007,59B:223-233
[101]Nakadai T, Koizumi H, Usami Y, et al. Examination of the methods for measuring soil respiration in cultivated land:effect of carbon dioxide concentration on soil respiration. Ecological Research, 1993,8:65-71
[102]Griffis T J, Black T A, Guay D G, et al. Seasonal variation and portioning of ecosystem respiration in a southern boreal aspen forest Agriculture and forest meteorology,2004,15:1-17
[103]Schlesinger W H and J A Andrews. Soil respiration and the global carbon cycle. Biogeochemistry, 2000,48:7-20
[104]James W R, Christopher S P and Dwipen B. Interannual variability in global soil respiration, 1980-1994. Global Biology Change,2002,8:800-812
[105]Cao Ming Kui,Tao Bo,Li Ke Rang, et al. Interannual Variation in Terrestrial Ecosystem Carbon Flaxes in China from 1981 to 1998. Acta Botanica Sinica,2003,45(5):552-560
[106]Kuzyakov Y H,Ehrensberger and K Stahr. Carbon partitioning and below ground translocation by Lolium perenne. Soil Biology and Biochemistry,2001,33:61-74
[107]Kuzyakov Y. Theoretical background for partitioning of root and rhizomicrobial respiration by13C of microbial biomass.European Journal of Soil Biology,2005a doi:10.1016/j. ejsobi.2005,07,002
[108]Kuzyakov Y and Larionova A A. Root and rhizomicrobial respiration:A review of approaches to estimate respiration by a atotrophic and heterotmphic organisms in soil. Journal of Plant Nutrition and Soil Science,2005b,168(4):503-520
[109]Thierron V and Laudelout H. Contribution of root respiration to total CO2 efflux from the soil of a deciduous forest. Canadian Journal of Forest Research,1996,26(7):1142-1148
[110]Lambers H, Van Der Werf A and Konings H. Respiration Patterns in roots in relation to their functioning. In:Waisel Y, Eshel A, Kafkafi U, eds, Plant root:the hidden half. New York, USA: Marcel Dekker,1991,229-263.
[111]齐志勇,望宏燕.陆地生态系统土壤呼吸的研究进展.农业系统科学与综合研究,2003,19(2)：116-119
[112]蔡祖聪.土坡痕量气体研究展望.土壤学报,1993,30：117-124
[113]李玉宁,王关玉.土壤呼吸作用和全球碳循环.地学前缘,2002,9(2)：351-356
[114]中国科学院南京土壤研究所土壤微生物室编,土壤微生物研究方法.北京：科学出版社,1985
[115]杨靖春,王大珍.东北羊草草原土壤微生物呼吸速率的研究.生态学报,1989,9(2)：139-143
[116]Ndil J W and Pepper I L. Soil respiration an index of soil aerateon. Soil Sci,1990,54:428-432
[117]Edwards N T and Sollins P C. Contribution measurement of carbon dioxide evolution from partitioned forest floor components. Ecology,1973,54:406-412
[118]Bloom A J and Caldwell R M. Root excision decreases nutrient adsorption and gas fluxes. Plant and Physiology,1988.87:794-796
[119]Bloom A J,Sukrapanna S S and Warner R L. Root respiration associated with ammonium and nitrate absorption and assimilation by barley. Plant Physiology,1992,99:1294-1301
[120]Lambers H, Scbeurwater I and Atkin O K. Respiratory patterns in roots in relation to their functioning. In:Waisel Y, Esbel A. KafkakiK(eds.). Plant roots:the bidden half. Marcel Dekker. Inc, New York USA,1996,323-362
[121]Rey A, Pegoraro E, Tedeschi V. et al. Annual variation in soil respiration and its components in a coppice oak forest in Central Italy. Global Change Biology,2002,8(9):851-866
[122]Brume R. Mechanisms of carbon and nutrient release and Retention in beech forest gaps. Plant and Soil,1995,168(169):593-660
[123]Nakane K, Kohno T and Horikoshi T. Root respiration rate before and just after clear-felling in a mature, deciduous, bmad-leaved forest. Ecological Research,1996,11:111-119
[124]Edwards N T. Root and soil respiration responses to ozone in Pinustaeda L. seedlings.New Phytol,1991,118:315-321
[125]Ewel K C and Cropper W P J R. Soil CO2 evolution in Florida slash pine plantations. Ⅱ.Importance of root respiration. Can J For Res,1987,17:330-333
[126]Rochette P, Flsnagan L B and Gregorich E G. Separating soil respiration into plant and soil components using natural abundance of 13C. Soil Sci Soc,Amer J,1999,63:1207-1213
[127]Dorr H and Miinnich K O. An num variations in soil respiration in selected areas of the temperate zone. Tellus,1987,39B:114-121
[128]Kucera C and Kirkham D. Soil respiration studies in tall grass pair in Missouri. Ecology, 1971,52:912-915
[129]李凌浩,韩兴国,王其兵等.锡林河流域一个放牧草原群落中根系呼吸占土壤总呼吸比例的初步估计.植物生态学报,2002,26(1)：29-32
[130]Blair J M, Bohlen P J, Stinner B R, et al. ManiPulation of earthworm populations in field experiments in agroecosystems. Acto Zoologica Fennica,1995,196:48-51
[131]李志安.森林凋落物分解重要影响因子及其研究进展.生态学杂志,2004,23(6)：7-83
[132]Edwards C A. Effects of pesticideresidueson soil in vertebrates and Plants.In:Goodman. G T, eds. Ecology and the Industrial Society, New York:John wiley and Sons,1964,239-261
[133]Gonzalez G. Soil fauna, microbes and plant litter decomposition in tropical and subalpinee forests. Dissertation University of Colorado. Boulder,Colorado,1999,USA
[134]Gonzalez G and Seasted T R. Comparisio of the abundance and composition of litter fauna intropical and subalpine forests. Pedobiologia,2000,44:545-555
[135]Bollen W B. Interactions between pesticides and soil microorganisms.Annu Rev Microbiol,1961,15:69-92
[136]Weary G C and Merrian H G.. Litter decomposition in a red maple woodlot under natural conditions and under iusecticide treatment.Ecology,1978,59(1):180-184
[137]Gonzalez G and Seastcdt. Soil fauna and plant litter decomposition in tropical and subalpine forests. Ecology.2001,82(4):955-964
[138]Wang S J, Ruan H H, Wang B, et al. Effects of soil microarthropods on plant litter decomposition across an elevation gradient in the Wuyi Mountains. Soil Biology Biochemistry,2009,6:1-7
[139]Kuzyakov Y and Cheng W. Photosynthesis controls of rhizosphere respiration and organic matter decomposition. Soil Biol Biochem,2001,33(14):1915-1925
[140]Bond L B, Wang C K and Gowers S T. A global relationship between the heterotrophic and autotrophic components of soil respiration? Glob Change Biol,2004,10(10):1756-1766
[141]Wang W, Guo J X and Feng J. Contribution of root respiration to total soil respiration in a Leymus chinensis (Trin.) Tzvel grassland of Northeast China. Integr Plant Biol,2006,48(4):409-414.
[142]Johnson L C and Matchett J R. Plant carbon-nutrient interactions control CO2 exchanse in Alaskan wet sedge tundra ecosystems. Ecologv,2000,81,453-469
[143]Mielnick P C and Dugas W A. Soil CO2 flux in a tall grass prairie. Soil Biology and Biochemistry, 2000,32:221-228
[144]Maier C A and Kress L W. Soil CO2 evolution and root respiration in 11 year-old loblolly pine (Pinus teada) plantations as affected by moisture nutrient availability. Canadian Journal of Forest Research, 2000,30, (3):347-359
[145]Li Y, Xu M and Zou X. Heterotrophic soil respiration in relation to environmental factors and microbial biomass in two tropical forests. Plant and Soil.2006,281:193-201
[146]Landi L,Valori F, Ascher J, et al. Root exudate effects on the bacterial communities, CO2 evolution, nitrogen transformations and ATP content of rhizosphere and bulk soils. Soil Biology and Biochemistry,2006,38:509-516
[147]Conant R T,Dalla-Bett P,Klopatek C C, et al. Controls on soil respiration in semiarid soils. Soil Biology and Biochemistry,2004,36,945-951
[148]Liu X Z, Wan S Q, Su B, et al. Response of soil CO2 efflux to water manipulation in a tallgrass prairie ecosystem, Plant and Soil,2002,240:213-223
[149]Davidson E A, Verchot L V and Cattanio J H. Effects of soil water on soil respiration in forests and cattle pastures of eastern Amazonia. Biogeochemistry,2000,48,53-69
[150]Lee X, Wu H, Sigler J, et al. Rapid and transient response of soil respiration to rain.Global Change Biology,2004,10:1017-1026
[151]Jia B R, Zhou G SH, Wang Y, et al. Effects of temperature and soil water-content on soil respiration of grazed and ungrazed Leymus chinensis steppes, Inner Mongolia. Arid Environ,2006,67,60-76.
[152]Gaumont-Guay D, Andrew Black T, Griffis T J, et al. Interpreting the dependence of soil respiration on soil temperature and water content in a boreal aspen stand. Agric For Meteorol,2006a,140,220-235
[153]Grigis T J, Black T A, Guay D G, et al. Seasonal variation and portioning of ecosystem respiration in a southern boreal aspen forest. Agriculture and forest meteorology,2004,15:1-17
[154]Davidson E A, Trumbore S E and Amundson R. Soil warming and organic carbon content Nature, 2000,408:789-790
[155]Kirschbaum M U F. Will changes in soil organic carbon act as a positive or negative feedback on global warming? Biogeochemistry,2000,48:21-51
[156]Widen B and Majdi H. Soil CO2 efflux and root respiration at three sites in a fixed pine spruce forest seasonal and diurnal variation. Canadian journal of forest research,2001,31:786-796
[157]Pregitzer K S, King J S, Burton A J, et al. Responses of tree fine roots to temperature. New Phytologist,2000,147:105-115
[158]Vose J M and Ryan M G. Seasonal respiration of foliage, fine roots, and woody tissues in relation to growth, tissue N, and photosynthesis. Global Change Biology,2002,8:164-175
[159]Bhupinderpal S,Nordgen A,Lofvenius M O, et al. Tree root and soil heterotrophic respiration as revealed by girdling of boreal Scots pine forest:extending observations beyond the first year. Plant,Cell and Environment,2003,26:1287-1296
[160]Craine J M, Wedin D A and Chapin F S. Predominance of Ecophysiological Controls on Soil CO2 Flux in a Minnesota Grassland. Plant and Soil,1998,207:77-86
[161]Witkamp M. Decomposition of leaf litter in relation to environment,microflora and microbial respiration. Ecology,1966,47:194-201
[162]Fang C and Moncrieff J B. The Dependence of Soil CO2 Efflux on Temperature. Soil Biology and Biochemistry,2001,33:155-165
[163]Lloyd J and Taylor J A. On the temperature dependence of soil respiration. Functional Ecology,1994, 8:315-323
[164]Davidson E A, Belt E and Boone R D. Soil water content and temperature as independent or confounded factors controlling soil respiration in a temperate mixed hardwood forest. Global Change Biol,1998,4:217-227
[165]Luo Y, Wan S, Hui D, et al. Acclimatization of soil respiration to warming in a tall grass prairie. Nature,2001.13:622-625
[166]Raich J W and Potter C S. Global patterns of carbon dioxide emissions from soils.Global Biogeochemical Cycles,1995,9:23-36
[167]Borken W, Savage K, Davidson E A, et al. Effects of experimental drought on soil respiration and radiocarbon efrlux from a temperate forest soil. Global Change Biology,2006,12(2):177-193
[168]Davidson E A, Richardson A D, Savage K E, et al. A distinct seasonal pattern of the ratio of soil respiration to total ecosystem respiration in a spruce-dominated forest, Global Change Biology, 2006,12(2):230-239
[169]Huang B and Jerry W. Johnson Root Respiration and Carbohydrate Status of Two Wheat Genotypes in Response to Hypoxia. Annals of Botany,1995,75:427-432
[170]Liu H S, Li F M and Xu H. Carbon consumption of roots and its relationship to yield formation in spring wheat as affected by soil moisture. Acta-Phytoecologica-Sinica,2004,28(2):191-197
[171]Borken W, Davidson E A, Savage K, et al. Drying and wetting effects on CO2 release from organic horizons. Soil Science Society of America Journal,2003,67:1888-1896
[172]Linn D M and J W Doran. Effect of water-filled pore space on carbon dioxide and nitrous oxide production in tilled and nontilled soils. Soil Science Society of American Journal,1984,48:1267-1272
[173]Doran J W,I N Mielk and J F Power. Microbial activity as regulated by soil water-filled pore space. In:Ecology of soil microorganisms in the microhabitat environments Transactions of the 14th Int. Congress of soil Science.(Symposium III) 1991,3:94-99
[174]Skopp J, D M Jawson and D W Doran. Steady-state aerobic microbial activity as afunction of soil water content. Soil Science Society of American Journal,1990,54:1619-1625
[175]Papendick R I and G S Campbell. Theory and measurement of water potential.In:Pam J F, W R Gardner and L F Elliot, eds.water potential relations in soil Microbiology. Soil Science Society ofAmerica Special Publications Number 9. Madison, W I, U S A,1981,1-22
[176]Wang C, Bond-Lamberty B and Gower S T. Soil surface CO2 flux in a boreal black spruce fire chronosequence. Journal of Geophysical Research-Atmospheres,2002,108:art no-8224
[177]Xu M and Qi Y. Soil-surface CO2 efflux and its spatial and temporal variations in a young ponderosa pine plantation in northern California. Global Change Biology,2001,7:667-677
[178]Reinke J J,Adriano D C and McLeod K W. Effects of litter alteration on carbon dioxide evolution from a South Carolina pine forest floor. Soil Science Society of America Journal,1981,45:620-623
[179]赵景波,袁道先,马占武.2000.西安地区4月份土壤CO2释放规律研究.中国岩溶,19(4)：309-313
[180]陈四清,崔晓勇,周广胜,等.1999.内蒙古锡林河流域大针茅草原土壤呼吸和凋落物分解的CO2排放速率研究.植物学报,41(6)：645-650
[181]Wang C K and Yang J Y. Rhizosphcric and hetemtrophic components of soil respiration in six temperate forests. Global Change Biology,2007,13(1):123-131
[182]Campbell J L, Sun O J and Law B E. Supply-side controls on soil respiration among Oregon forests. Global Change Biology,2004,10(11):1857-1869
[183]江西森林,北京：中国林业出版社,1986
[184]S J Wang,H H Ruan and B Wang. Effects of soil microarthropods on plant litter decomposition across an elevation gradient in the Wuyi Mountains. Soil Biology Biochemistry,2009,6:1-7
[185]尹文英.中国土壤动物检索图鉴.北京：科学出版社,1998
[186]Wang Z Q,Burch W H,Mou P, et al. Accuracy of visible and ultraviolet light for estimating live root proportions with minirhizotmtrons. Ecology,1995,76(7):2330-2334
[187]Smit A L, Bengough A G, Engels C, et al. Root methods:a handbook.Berlin:Springer—Verlag,2000
[188]Wang Wei, Feng Jiang and T Oikawa. Contribution of Root and Microbial Respiration to Soil CO2 Efflux and Their Environmental Controls in a Humid Temperate Grassland of Japan. Pedosphere,2009,19(1):31-39
[189]Persson H. The distribution and productivity of fine roots in boreal forest. Plant Soil,1983,71:87-101
[190]姚槐应,黄昌勇,等.土壤微生物生态学及其实验技术.北京,科学出版社2006
[191]吴金水,林启美,黄巧云,等.土壤微生物生物量测定方法及其应用.北京,中国气象出版社,2006
[192]Xu L K and Baldocchi D D. Seasonal variation in carbon dioxide exchange over Mediterranean annual grassland in California, Agricultural and Forest Meteorology,2004,1232:79-86
[293]Qia Y C, Dong Y S, Liu J Y, et al. Effect of the conversion of grassland to spring wheat field on the CO2 emission characteristics in Inner Mongolia, China. Soil Tillage Research,2007,94:310-320
[194]刘立新,董云社,齐玉春,等.内蒙古锡林河流域土壤呼吸的温度敏感性.中国环境科学,2007,27：226-230
[195]Grogan P and Jonasson S. Temperature and substrate controls on intra-annual variation in ecosystem respiration in two subarctic vegetation types.Global Change Biology,2005,11:465-475
[196]Borken W, Xu Y, Dvidson E A, et al. Site and temporal variation of soil respiration in European beech, Norway spruce, and Scots pine forests.Global Change Biol,2002,8:1025-1216
[197]Khomik M, Arain M and McCaughey J H. Temporal and spatial variability of soil respiration in a boreal mixed-wood forest. Agric For Meteoro,2006,140:244-256
[198]Kang S, Doh S and Lee D, et al. Topographic and climatic controls on soil respiration in six temperate mixed-hardwood forest slopes. Korea Global Change Biol,2003,9,1427-1437
[199]Fang C,Moncrieff J B and Gholz H L. Soil CO2 efflux and its spatial variation in a Florida slash pine plantation. Plant Soil 1998,205:135-146
[200]Silver W L. The potential effects of elevated CO2 and climate change on tropical forest soils and biogeochemical cycling. Climate Change,1998,39:337-361
[201]Zou X M, Ruan H H and Fuan Y, et al. Estimating soil labile organic carbon and potential turnover rates using a sequential fumigation-incubation procedure. Soil Biology Biochemistry, 2005,37:1923-1928
[202]Rodeghiero M and Cescatti A. Main determinants of forest soil respiration along an elevation/temperature gradient in the Italian Alps. Global Change Biology, Cycles,2005,11:1024-1041
[203]M B,Rayment P G and Jarvis. Temporal and spatial variation of soil CO2 efflux in a Canadian boreal forest. Soil Biology and Biochemistry,2000,32(l):35-45
[204]Ebert G and Lenz F. Annual course of root respiration of apple trees and its contribution to theCO2 balance. Garten bauwissens chaft,1991,56(3):130-133
[205]陈光水,杨玉盛,王小国,等.格氏拷天然林与人工林根系呼吸季节动态及影响因素.生态学报,2005,25(8)：1941-1947.
[206]姜丽芬,石福臣,王化田,等.东北地区落叶松人工林的根系呼吸.植物生理学通讯,2004,40(1)：27-30.
[207]任军.落叶松和水曲柳人工林土壤、根系和土壤微生物呼吸研究,2009,24～25
[208]Bloomfield J,Vogt K A and Wargo P M. Tree root turnover and senescence/Waisel A E Y,Kafkafi U. Plant Rots,The hidden half(2),NewYork:Marcel Dekker Press,1996,363-381
[209]Vogt K A,Vogt D J,Palmiotto P A,et al. Review of root dynamics in forest ecosystems grouped by climate. climatic forest type and species. Plant and Soil,1996187(2):159-219
[210]Nadelhoffer K J. The potential effects of nitrogen deposition on fine-rot production in forest ecosystems.New Phytologist,2000,147(1):131-139
[211]Norby R J and Jackson R B. Root dynamics and global change:seeking an ecosystem perspective. New Phytologist,2000,147(1):3-12
[212]李德会,李贤伟,王巧,等.林木根系呼吸影响因素及根系呼吸对全球变化的响应.浙江林学院学报,2007,24(2)：231-238.
[213]Yang J Y,Wang C K. Partitioning soil respiration of temperate forest ecosystems in Northeastern China. Acta Phytoecologica Sinica,2006.30(2):286-294
[214]张丽华,陈亚宁,李卫红.干旱荒漠区不同土地利用/覆盖类型土壤呼吸速率的季节变化书.中国科学D辑,地球科学2006,36(增刊Ⅱ)：68-76
[215]Huang C C,Ge Y,Chang J, et al. Studies on the soil respiration of three woody plant communities in the east midsubtropical zone, China. Acta Ecologica Sinica,1999,19 (3):324-328
[216]Liu S H, Fang J Y and Makoto K. Soil respiration of mountainous temperate forests in Beijing, China. Acta Phytoecologica Sinica,1998,22 (2):119-126
[217]Wu J G, Zhang X Q and Xu Deying. The temporal variations of soil respiration under different land use in Liupan Mountainforest zone. Environmental Science,2003,24(6):23-32
[218]Yang J Y, Huang J H, Zhan X M, et al. The diurnal dynamic patterns of soil respiration for different plant communities in the agro pastoral ecotone with reference to different measuring methods. Acta Phytoecologica Sinica,2004,28 (3):318-325
[219]Janssens I A and Pilegaard K. Large seasonal changes in Q10 of soil respiration in a beech forest. Global Change Biology,2003,9:911-918
[220]Gaumont-Guay D, Andrew Black T, Griffis T J, et al. Influence of temperature and drought on seasonal and interannual variation of soil, bole and ecosystem respiration in a boreal aspen stand. Agricultural and Forest Meteorology,2006,40:203-219
[221]Chang Z Q,Shi Z M,Feng Q, et al. Temporal variation of soil respiration on sloping pasture of Heihe River bas in and effects of temperature and soil moisture on it. Chinese Journal of Applied Ecology, 2005,16(9):1603-1606
[222]Longdoz B,Yernaux M and Aubinet M. Soil CO2 efflux measurements in a mixed forest:Impact of chamber disturbances, spatial variability and seasonal evolution. Global Change Biology,2000,6:907-917
[223]Ran J C,He S Y,Cao J H, et al. A preliminary research on CO2 release in subtropical karst forest soil. Guizhou Stience,2002,20(2):42-47
[224]Li L H,Wang Q B,Bai Y F, et al. Soil respiration of a Leymus Chinese grassland stand in the Xinlin River basin as affected by over grazing and climate. Acta Phytoecologica Sinica,2000,24:680-686.
[225]Coleman D C,HunterM D,Hutton J, et al. Soil resp iration from four aggrading forested watershedsmeasured over a quarter century. Forest Ecology and Management,2002,157:247-253
[226]Yi Z QYi W M,Zhou G Y,et al. Soil carbon effluxes of three major vegetation types in Dinghushan
Biosphere Reserve. Acta Ecologica Sinica,2003,23(8):1673-1678
[227]Luo S S,Chen B F,Li Y D, et al. Litter and soil respiration in a tropical mountain rain forest in Jianfengling, Hainan ialand. Acta Ecologica Sinica,2001,21(12):2013-2017
[228]Li L H,Han X G,Wang Q B, et al. Separating root-and soil microbial contributions to total soil respiration in grazed grassland in the Xi Lin river basin. Aeta Phytoecolosica Sinica,2002,26(1):29-32
[229]Behera N,Joshi S K and Pati D P. Root contribution to total soil metabolism in a tropical forest soil from Orissa. Indian Forest Ecology Management,1990,36:125-134
[230]Cheng S Y and Zhang X Z. Method and application of separate root respiration and microorganism respiration from total soil respiration.Advance in Earth Science,2003,18(4)597-602
[231]褚金翔,张小全.川西亚高山林区三种土地利用方式下土壤呼吸动态及组分区分,生态学报,2006,26(6)：1693-1700
[232]杨金燕.东北天然次生林生态系统地下碳动态研究.东北林业大学,2005,34～37
[233]常建国.北亚热带—暖温带过渡区典型森林生态系统土壤呼吸特征研究.中国林业科学研究院,2007,80～91
[234]Buchmann, N. Biotic and abiotic factors controlling soil respiration rates in Picea abies stands. Soil Biology and Biochemistry,2000,32:1625-1635
[235]方精云,刘国华,徐篙龄.中国陆地生态系统碳库.(王如松,方精云,高林主编).现代生态学的热点问题研究.北京：中国科学技术出版社,1996,109-128
[236]Xu M and Qi Y. Spatial and seasonal variations of Q10 determined by soil respiration measurements at a Sierra Nevadan forest. Global Biogeochemical Cycles,2001,15:687-696
[237]Wagai R, Brye K R, Gower S T, et al. Land use and environmental factors influencing soil surface CO2 flux and microbial biomass in natural and managed ecosystems in Southern Wisconsin. Soil Biology Biochemistry,1998,30:1501-1509
[238]Wildung R E,Garland T R and Buschom R L. The interdependent effect of soil respiration rate and plant root decomposition in arid grassland soils. Soil Biology Biochemistry,1975.7:373-378
[239]Raich J W and Tufekcioglu A. Vegetation and soil respiration:Correlations and controls. Biogeochemistry,2000,48:71-90
[240]Potila H and Sarjala T. Seasonal Fluctuation in Microbial Biomass and Activity along a Natural Nitrogen Gradient in a Drained Peatland. Soil Biology and Biochemistry,2004,36,1047-1055
[241]Wardle D A. Controls of Temporal Variability of the Soil Microbial Biomass:a Global Scale Synthesis. Soil Biology and Biochemistry,1998,30(13):1627-1637
[242]Chen T H,Chiu C Y and Tian C A L. Seasonal Dynamics of Soil Microbial Biomass in Coastal Sand Dune Forest. Pedobiologia,2005,49:645-653
[243]Cochran V L,Elliott L F and Lewis C F. Soil Biomass and Enzyme Activity in Subarctic Agricultural and Forest Soils. Biology and Fertility of Soils,1989,7:283-288
[244]Gallardo A, Schlesinger W H. Factors Limiting Microbial Biomass in the Mineral Soil and Forest Floor of a Warm Temperate Forest. Soil Biology Biochemistry,1994,26:1409-1415
[245]Holmes W E. Zak D R. Soil Microbial Biomass Dynamics and Net Nitrogen Mineralization in Northern Hardwood Ecosystems. Soil Science Society of America,1994,58:238-243
[246]Maxwell R A and Coleman D C. Seasonal Dynamics of Nematodes and Microbial Biomass in Soils of Riparian Zone Forests of the Southern Appalacians. Soil Biology Biochemistry,1995,27:79-84
[247]王国兵,阮宏华,唐燕飞,等.北亚热带次生栋林与火炬松人工林土壤微生物生物量碳的季节动态.应用生态学报,2008,19(1)：37-42
[248]Kaye J P and Hart S C. Competition for Nitrogen between Plants and Soil Microorganisms.Trends in Ecology and Evolution,1997,12:139-143
[2]WMO Greenhouse Gas Bulletin.Geneva:World Meteorological Organization/Global Atmosphere Watch. http://www mo.ch/web/arep/gaw/ghg/ghg-bulletin-en-03-06.pdf,2006
[3]Woodwell G M and Pecaneds E V. Terrestrial detritus and the arbon cycle. In:Carbon and the biosphere:Reiners W A.New York:United States Atomic Energy Commission,1973,303-327
[4]Broecker W S, Takahashi T, Simpson H J, et al. Fate of fossil fuel carbon dioxide and the global carbon budget. Science,1979,206:409-418
[5]Trabalca J R. Atmospheric carbon dioxide and the global carbon cycle. Washington DC:US Department of Energy,1985
[6]Tans P,Fung I P and Takahashi T. Observational constraints on the global atmospheric CO2 budget. Science,1990,247:1431-1438
[7]Nakazawa T. The variability and cycle of carbon dioxide and methane. Global Environmental Research, 1997,2:5-14
[8]Battle M, Bender M L, Tans P P, et al. Global carbon sinks and their variability inferred from atmospheric O2 and 13C. Science,2000,287:2467-2470
[9]Watson R T, H, Rodhe H. Oeschger and U Siegenthaler.1990. Greenhouse gases and aerosols. In:Houghton J T, G J Jenkins and J J Ephraums, eds. Climate change,1-40
[10]Walker B H and L Steffen. The nature of global change:In:Walker B H, W L Steffen J, and Canadell eds. The terrestrial biosphere and global change, IGBP book series 4 Cambridge University Press, 1999,1-18
[11]Sesio R A. Temperate foreste ecosystems in the global carbon cycle,Ambio.1992,21:274-277
[12]Siegenthaler U and L Sarmiento. Atmospheric carbon dioxide and the ocean. Nature,1993,365:119-125
[13]Lundegardhh H. Carbon dioxide evolution of soil and crop growth. Soil Sci,1927,23:417-453
[14]Sing J S, Gupta S R. Plant decomposition and soil respiration in terrestrial ecosystem. Bot Rev,1977,43(4):449-528
[15]Hanson P J, Edwards N T and Garten C T. Separating root and soil microbial contributions to soil respiration:A review of methods and observations. Biogeochemistry,2000,48:115-146
[16]Wiant H V. Has the contribution of litter decay to forest soil respiration been overestimated? For, 1967,65:408-409
[17]Raich J W and Schlesinger W H. The global C dioxide flux in soil respiration and its relationship to vegetation and climate. Tellus,1992,44:81-99
[18]Cheng W. Investigating short-term carbon flows in the rhizospheres of different plant species,using isotopic trapping. Agron J,1994,86:782-788
[19]Valentini R, Matteucci G and Dolman A. Respiration as themaindeterminant of carbon balance in European forests. Nature,2000,404:861-865
[20]O'Leary M H. Carbon isotopes in photosynthesis.Bioscience,1988,38:328-336
[21]方精云,朴世龙,赵淑清.C02失汇与北半球中高纬度陆地生态系统的C汇.植物生态学报,2001,25(5)：594-602
[22]蒋延玲,周广胜,赵敏,等.长白山阔叶红松林生态系统土壤呼吸作用研究.植物生态学报,2005,29(3)：411-414
[23]刘纪远,于贵瑞,王绍强,等.陆地生态系统碳循环及其机理研究的地球信息科学方法初探.地理研究,2003,22(4)：397-405
[24]罗勇,蓝文杰,王绍武.气候突变的情景及其对美国国家安全的愈义一简评美国国防部“秘密”报告,气候变化通讯,2004,3(1)：11-13
[25]Smart D R, Ferro A,Ritchie K, et al.On the use of antibiotics to reduce rhizosphere microbial-populations in root physiology and ecology investigation.Physiol Plant,1995,955:33-540
[26]Swinnen J, Van Veen J A and Merckx R.14C pluse-labelling of field-grown spring Wheat:an evaluation of its use in rhizosphere carbon budget estimations. Soil. Biochem,1994.26:161-170
[27]Vogt K A, Grier C C and Meie C E. Mycorhizal role in net primary production and nutriont cycling in Abies amabilis ecosys tems in western Washington Ecology,1982,63:370
[28]Fahey T J and Hughes J W. Fine root dynamics in a nortuern hardwood forest ecosystem Hubbard Brook Experimental forest. N H Journal of Ecology,1994,82(3):533-548
[29]Hendricks J J, Nadelhoffer K J and Aber J D. Assessing the role of fine roots in carbon and nutrient cycling. Trends in Ecology and Evolutionary Biology 1993,8:174-178
[30]Kelting D L, James A B, Gerry S E. Estimating roor respiration, microbial respiration in the rhizosphere, and root-free soil respiration in forest soils. Soil Biology and Biochemistry,1998,30(7):961-968
[31]Kuzyakov Y. Separating microbial respiration of exudates from root respiration in non-sterile soils:A comparison of four methods. Soil Biology and Biochemistry,2002,34:1621-1631
[32]Kuzyakov Y. Sources of CO2 efflux from soil and review of partitioning methods. Soil Biology and Biochemistry,2006,38(3):425-448
[33]Hogberg P, BuchmannN and read D J. Comments on Yakov kuzyakov's review "Sources of CO2 efflux from soil review of partitioning methods",Soil Biology and Biochemistry,2006,38(9):2997-2998
[34]Kuzyakov Y. Response to the comments by Peter Hogberg, Nina Buchmann and David J. Read on the review "Sources of CO2 efflux from soil and review of partitioning methods". Soil Biology and Biochemistry,2006,38(9):2999-3000
[35]Horwath W R, Regitzer K S and Paul E A.14C allocation in tree-soil systems.Tree Physiol,1994,14:1163-1176
[36]陆雅海,张福锁.根际微生物研究.土壤,2006,38(2)：113-121
[37]王振宇,吕金印,李凤明,等.根际沉积及其在植物-土壤碳循环中的作用.应用生态学报,2006,17(1)：1963-1968
[38]Anderson R V and Ineson P. Interaction between microorganisms and soil invertebrates in nutrient flux Pathways of forest ecosystems. Invertebrate microbial Interactions,1984,59-88
[39]Ineson P, Leonard M and Anderson J. Effect of collembolan grazing upon nitrogen and cation leaching
from decomposing leaf litter. Soil Biol Biochem,1982,14:601-605
[40]Seasted T T. The role of microarthropods in decomposition and mineralization processes. Ann Rev Entomol,1984,29:25-46
[41]Anderson J. Invertebrate-mediated transport processes in soils. Agric Ecosyst Environ,1988,24:5-19
[42]Didder W A M. Ecology of terrestrial enchytraeidae-review. Pedobiologia,1993,37:2-29
[43]De R P,Moore J,Zwart K,et al. Simulation of nitrogen mineralization in the below-ground food webs of two winter wheat fields. Appl Soil Ecol,1993,30:95-106
[44]Nadelhoffer K J and Raich J W. Fine root production estimates and belowground carbon allocation in forest ecosystems. Ecology,1992,73:1139-1147
[45]Hogberg P, Nordgren and N Buchmann. Large-scale forest girdling shows that current photosynthesis drives soil respiration. Nature,2001,411:789-792
[46]Giardina C P and Ryan M G. Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature. Nature,2000,404:858-861
[47]Cheng W. In situ measurement of root respiration and soluble C concentration in the rhizosphere. Soil Biol Biochem,1993,25(9):1189-1196
[48]O'leary M H. Carbon isotopes in photosynthesis. Bioscience,1988,38:328-336
[49]Nguyen C. Rhizodeposition of organic carbon by plants:mechanisms and controls. Agronomie,2003,23:375-396
[50]Schlesinger W H. Carbon balance in terrestrial detritus. Annual Review of Ecology and Systematics,1977,8:51-81
[51]Ryan M G and Gowers S T. Annual carbon cost of auto trophic respiration in boreal forest ecosystems in relation to species and climate. Geophys Res,1997,102(28):871-883
[52]Bonan G B. Physiological controls of the carbon balance of boreal forest ecosystems. Can. J. For Res, 1993,23:1453-1471
[53]Strirgl R G and Wickland K P. Effects of clean cut harvest on soil respiration in a jack pine-lichen wood land. Can.J.For Res,1998,28:534-539
[54]Yang Y S, Dong B, Xie J S, et al. A review of tree root respiration:significance and methodologies. Acta Phytoecologica Sinica,2004,28(3):426-434
[55]Hogg E H. Simulation of interannual responses of trembling aspen stands to climatic variation and insect defoliation in western Canada. Ecological Model,1999,114:175-193
[56]Desrochers A, Landhausser S M and Lieffers V J. Coarse and fine root respiration in aspen(Populus trernuloides).Tree Physiology,2002,22:725-732
[57]Burton A J and Pregitzer K S. Field measurements of root respiration indicate little to no seasonal temperature acclimation for sugar mapleand red pine. Tree Physiology,2003,23:273-280
[58]Lee K H and Tose S B. Soil respiration, fine root production and microbial biomass in Cottonwood and Loblolly pine plantations along a nitrogen fertilization gradient. Forest Ecology and Management,2003,185:263-273
[59]Bazin M J, Markham P, Scoot E M, et al. Population dynamics and rhizosphere interactions. In The rhizosphere. J.M. Lynch John.wiley, New York,1990,99-127
[60]Paul E A and Clark F E. Soil microbiology and biochemistry. Acadomic Press, New York,1989
[61]Dormaar J F. Effect of active roots on the decomposition of soil organic matter. Biology Fertility Soils,1990,19:121-126
[62]Kuzyakov Y. Review:factors affecting rhizosphere priming effects. Plant nutrition and soil science,2002,165:382-396
[63]Cheng W and Kuzyakov Y. Root effects on decomposition of organic matter. In:Wright, S. (ed):Roots and Soil management:Interactions Between Roots and Soils. Soil Science Society of America Book Series, Soil Science Society of America, Inc., Madison, Wisconsin,USA,2005
[64]Melillo J M, Aber J D and Muratore J F. Nitrogen and lignin control of hardwood leaf litter decomposition dynamics. Ecology,1982,63:621-626
[65]Patton W J,Schimel D S,Cole C V,et al. Analysis of factors controlling soil organic matter levels in Great Plains grasslands. Soil Sciences Society of American Journal,1987,51:1173-1179.
[66]Bowden R D,Nadelhoffer K J,Boono R D,et al. Contributions of aboveground litter,belowground litter,and root respiration to total soil respiration in a temperate mixed hardwood forest. Canadian Journal of Forest Research,1993,23:1402-1407
[67]Schimel D S,Braswell B H,Holland E A, et al. Climatic, edaphic and biotic controls over storage and turn over of carbon in soils. Global Biogeochemical Cycles,1994,8:279-293
[68]Gaudinski J B, Trumbore S E, Davidson E A, et al. Soil carbon Cycling in a temperate forest:radiocarbon-based estimates of residence times, sequestration rates and partitioning of fluxes. Biogeo chemistry,2000,51:33-69
[69]Zak D R, Tilman D, Parmente R R, et al. Plant production and soil microorganisms in late successional ecosystems:acontinental-scalcs study. Ecology,1994,75:2333-2347
[70]仲伟彦,殷秀琴和陈鹏.凉水自然保护区土壤动物群落结构特征.东北林业大学学报,1997,25(3)：80-85.
[71]杨效东,佘宇平.西双版纳热带森林雨季土壤动物群落组成与分布特征.东北林业大学学报,1998,26(6)：65-70.
[72]殷秀琴,李建东.羊草草原土壤动物群落多样性的研究.应用生态学报,1998,9(2)：186-188.
[73]刘红,袁兴中.中国东部山地森林土壤动物多样性.山地学报,2000,18(3)：221-225.
[74]Ohashi M, Finer L, Domisch T, et al. CO2 efflux from a red wood ant mound in a boreal forest. Agric For Meteorol,2005,130:131-136.
[75]Hanson R D G and Anderson J M. The effects of Collembolan grazing on microbial activity in decomposing leaf litter ecologia.1979,38:93-100
[76]Ingham R E.Trofymow J A,Ingheam E R, et al. Interactions of bacterial nutrient cycling and plant growth. Ecological Monographs,1985,55:119-140
[77]Tuben A and Roelofsma T A. Dynamic interactions between functional groups of soil arthropoda and microorganisms during decomposition of coniferous litte in microcosm. Experiments Biology and Fertility of Soils,1990,9:145-151
[78]Kletzschmar A and Ladd J M. Decomposition of carbon14 labelled plant material in soil:The influence of substrate location soil compaction and earthworm numbers. Soil Biochem,1993,25(6):803-809
[79]Bohlen P J and Edwards C A. Earth warm effects of N, dynamics and soil respiration in Microcosms receiving organic and in organic nutrients. Soil Biochem,1995,27(3):341-348
[80]Anderson V R, Coleman D C and Cole C V. Effectcts of saprotrophic grazing on net mineralitation. Ecological bulletins(stockholm),1981,33:201-216
[81]Kanekon, Mclean M A and Parkinson D. Do mites and collembola affect pine litter fungal biomass and microbial respiration? Appl Soil Ecol,1998,9:209-213
[82]Clements F E. Aeration and Air-Contents. Publication 315. Carnegie Institution of Washington. D C,1921
[83]Russet E J and Appleyard A. The Atmosphere of the Soil:Its Composition and the causes of Variation. Journal of Agricultural Science,1915,7:1-48
[84]Norman J M, Kucharik C J, Gower ST, et al. Comparison of Six Methods for Measuring Soil Surface Carbon Dioxide Fluxes. Journal of Geophysical Research,1997,102:28771-28777
[85]Lund C P, Riley W J, Pierce L L, et al. The Effects of Chamber Pressurezetion of Soil Surface CO2.Global Change Boiology,1999,5:269-281
[86]Kim J, S B. Verma. Carbon dioxide budget in a temperate grassland ecosystem. Journal of Geophysical Research,1992,97:6057-6063
[87]Kabwe K L, M J and Hendry G. W, et al. Lawrence. Quantifying CO2 fluxes from soil surfaces to the atmosphere. Journal of Hydrology,2002,260:1-14
[88]Janssens I A, A S, Kowalski B, et al. Assessing forest soil CO2 efflux:an in situ comparison of four techniques. Tree Physiology,2000.20(1):23-32
[89]Rustad L T and Huntington R D. Boone. Controls on soil respiration:Implications for climate change. Biogeochemistry,2000,48:1-6
[90]Janssens I A, A S, Kowalski, et al. Forest floor CO2 fluxes estimated by eddy covariance and chamber-based model. Agricultural and forest meteorology,2001,106(1):61-69
[91]李凌浩,韩兴国.陆地生物圈见：韩兴国,李凌浩,黄建辉主编.生物地球化学概论.北京：高等教育出版社；海德堡：施普林格出版社,1999,86-159
[92]Myeong H Y, Seung J J and Kauneyuki N. Comparison of field methods for measuring soil respiration:a static alkali absorption method and two dynamic closed chamber methods. Forest Ecology and Management,2002,170:189-197
[93]Kirita H. Reexamination of the absorption method of measure soil respiration under field condition: Effect of the size of the apparatus on CO2 absorption rates. Jap J Ecol,1971,21:37-42
[94]Bekku Y H, Koizumi T N and Iwaki H. Examination of four methods for measuring soil respiration. Applied Soil Ecology,1997,5:247-254
[95]King J A and Harrison R. Measuring soil respiration in field:an automated closed chamber system compared with portable IRGA and alkali absorption methods.Communications Soil Science and Plant Analysis,2002,33:430-423
[96]杨晶,李凌浩.土壤呼吸及其测定法.植物杂志,2003,5：36-37
[97]Aubinet M, Grelle A and Ibrom A. Estimates of the annual net carbon and water exchange of European forests:the EUROFLUX methodology. Advanced Ecololy Research.2000,30:113-174
[98]Subke J A and Tenhunen J D. Direct measurements of CO2 flux below a spruce forest canopy. Agric For Meteorol.2004,126:157-168.
[99]Billings S A, Richter D D and Yarie J. Soil carbon dioxide fluxes and profile concentrations in two boreal forests. Canadian Journal of forest research,1998,28:1773-1783
[100]Kim B Y, Ueyama M, Nakagawa F, et al. Assessment of winter fluxes of CO2 and CH4 in boreal forest soils of central Alaska estimated by the profile method and the chamber method:a diagnosis of methane emission and implications for the regional carbon budget Tellus,2007,59B:223-233
[101]Nakadai T, Koizumi H, Usami Y, et al. Examination of the methods for measuring soil respiration in cultivated land:effect of carbon dioxide concentration on soil respiration. Ecological Research, 1993,8:65-71
[102]Griffis T J, Black T A, Guay D G, et al. Seasonal variation and portioning of ecosystem respiration in a southern boreal aspen forest Agriculture and forest meteorology,2004,15:1-17
[103]Schlesinger W H and J A Andrews. Soil respiration and the global carbon cycle. Biogeochemistry, 2000,48:7-20
[104]James W R, Christopher S P and Dwipen B. Interannual variability in global soil respiration, 1980-1994. Global Biology Change,2002,8:800-812
[105]Cao Ming Kui,Tao Bo,Li Ke Rang, et al. Interannual Variation in Terrestrial Ecosystem Carbon Flaxes in China from 1981 to 1998. Acta Botanica Sinica,2003,45(5):552-560
[106]Kuzyakov Y H,Ehrensberger and K Stahr. Carbon partitioning and below ground translocation by Lolium perenne. Soil Biology and Biochemistry,2001,33:61-74
[107]Kuzyakov Y. Theoretical background for partitioning of root and rhizomicrobial respiration by13C of microbial biomass.European Journal of Soil Biology,2005a doi:10.1016/j. ejsobi.2005,07,002
[108]Kuzyakov Y and Larionova A A. Root and rhizomicrobial respiration:A review of approaches to estimate respiration by a atotrophic and heterotmphic organisms in soil. Journal of Plant Nutrition and Soil Science,2005b,168(4):503-520
[109]Thierron V and Laudelout H. Contribution of root respiration to total CO2 efflux from the soil of a deciduous forest. Canadian Journal of Forest Research,1996,26(7):1142-1148
[110]Lambers H, Van Der Werf A and Konings H. Respiration Patterns in roots in relation to their functioning. In:Waisel Y, Eshel A, Kafkafi U, eds, Plant root:the hidden half. New York, USA: Marcel Dekker,1991,229-263.
[111]齐志勇,望宏燕.陆地生态系统土壤呼吸的研究进展.农业系统科学与综合研究,2003,19(2)：116-119
[112]蔡祖聪.土坡痕量气体研究展望.土壤学报,1993,30：117-124
[113]李玉宁,王关玉.土壤呼吸作用和全球碳循环.地学前缘,2002,9(2)：351-356
[114]中国科学院南京土壤研究所土壤微生物室编,土壤微生物研究方法.北京：科学出版社,1985
[115]杨靖春,王大珍.东北羊草草原土壤微生物呼吸速率的研究.生态学报,1989,9(2)：139-143
[116]Ndil J W and Pepper I L. Soil respiration an index of soil aerateon. Soil Sci,1990,54:428-432
[117]Edwards N T and Sollins P C. Contribution measurement of carbon dioxide evolution from partitioned forest floor components. Ecology,1973,54:406-412
[118]Bloom A J and Caldwell R M. Root excision decreases nutrient adsorption and gas fluxes. Plant and Physiology,1988.87:794-796
[119]Bloom A J,Sukrapanna S S and Warner R L. Root respiration associated with ammonium and nitrate absorption and assimilation by barley. Plant Physiology,1992,99:1294-1301
[120]Lambers H, Scbeurwater I and Atkin O K. Respiratory patterns in roots in relation to their functioning. In:Waisel Y, Esbel A. KafkakiK(eds.). Plant roots:the bidden half. Marcel Dekker. Inc, New York USA,1996,323-362
[121]Rey A, Pegoraro E, Tedeschi V. et al. Annual variation in soil respiration and its components in a coppice oak forest in Central Italy. Global Change Biology,2002,8(9):851-866
[122]Brume R. Mechanisms of carbon and nutrient release and Retention in beech forest gaps. Plant and Soil,1995,168(169):593-660
[123]Nakane K, Kohno T and Horikoshi T. Root respiration rate before and just after clear-felling in a mature, deciduous, bmad-leaved forest. Ecological Research,1996,11:111-119
[124]Edwards N T. Root and soil respiration responses to ozone in Pinustaeda L. seedlings.New Phytol,1991,118:315-321
[125]Ewel K C and Cropper W P J R. Soil CO2 evolution in Florida slash pine plantations. Ⅱ.Importance of root respiration. Can J For Res,1987,17:330-333
[126]Rochette P, Flsnagan L B and Gregorich E G. Separating soil respiration into plant and soil components using natural abundance of 13C. Soil Sci Soc,Amer J,1999,63:1207-1213
[127]Dorr H and Miinnich K O. An num variations in soil respiration in selected areas of the temperate zone. Tellus,1987,39B:114-121
[128]Kucera C and Kirkham D. Soil respiration studies in tall grass pair in Missouri. Ecology, 1971,52:912-915
[129]李凌浩,韩兴国,王其兵等.锡林河流域一个放牧草原群落中根系呼吸占土壤总呼吸比例的初步估计.植物生态学报,2002,26(1)：29-32
[130]Blair J M, Bohlen P J, Stinner B R, et al. ManiPulation of earthworm populations in field experiments in agroecosystems. Acto Zoologica Fennica,1995,196:48-51
[131]李志安.森林凋落物分解重要影响因子及其研究进展.生态学杂志,2004,23(6)：7-83
[132]Edwards C A. Effects of pesticideresidueson soil in vertebrates and Plants.In:Goodman. G T, eds. Ecology and the Industrial Society, New York:John wiley and Sons,1964,239-261
[133]Gonzalez G. Soil fauna, microbes and plant litter decomposition in tropical and subalpinee forests. Dissertation University of Colorado. Boulder,Colorado,1999,USA
[134]Gonzalez G and Seasted T R. Comparisio of the abundance and composition of litter fauna intropical and subalpine forests. Pedobiologia,2000,44:545-555
[135]Bollen W B. Interactions between pesticides and soil microorganisms.Annu Rev Microbiol,1961,15:69-92
[136]Weary G C and Merrian H G.. Litter decomposition in a red maple woodlot under natural conditions and under iusecticide treatment.Ecology,1978,59(1):180-184
[137]Gonzalez G and Seastcdt. Soil fauna and plant litter decomposition in tropical and subalpine forests. Ecology.2001,82(4):955-964
[138]Wang S J, Ruan H H, Wang B, et al. Effects of soil microarthropods on plant litter decomposition across an elevation gradient in the Wuyi Mountains. Soil Biology Biochemistry,2009,6:1-7
[139]Kuzyakov Y and Cheng W. Photosynthesis controls of rhizosphere respiration and organic matter decomposition. Soil Biol Biochem,2001,33(14):1915-1925
[140]Bond L B, Wang C K and Gowers S T. A global relationship between the heterotrophic and autotrophic components of soil respiration? Glob Change Biol,2004,10(10):1756-1766
[141]Wang W, Guo J X and Feng J. Contribution of root respiration to total soil respiration in a Leymus chinensis (Trin.) Tzvel grassland of Northeast China. Integr Plant Biol,2006,48(4):409-414.
[142]Johnson L C and Matchett J R. Plant carbon-nutrient interactions control CO2 exchanse in Alaskan wet sedge tundra ecosystems. Ecologv,2000,81,453-469
[143]Mielnick P C and Dugas W A. Soil CO2 flux in a tall grass prairie. Soil Biology and Biochemistry, 2000,32:221-228
[144]Maier C A and Kress L W. Soil CO2 evolution and root respiration in 11 year-old loblolly pine (Pinus teada) plantations as affected by moisture nutrient availability. Canadian Journal of Forest Research, 2000,30, (3):347-359
[145]Li Y, Xu M and Zou X. Heterotrophic soil respiration in relation to environmental factors and microbial biomass in two tropical forests. Plant and Soil.2006,281:193-201
[146]Landi L,Valori F, Ascher J, et al. Root exudate effects on the bacterial communities, CO2 evolution, nitrogen transformations and ATP content of rhizosphere and bulk soils. Soil Biology and Biochemistry,2006,38:509-516
[147]Conant R T,Dalla-Bett P,Klopatek C C, et al. Controls on soil respiration in semiarid soils. Soil Biology and Biochemistry,2004,36,945-951
[148]Liu X Z, Wan S Q, Su B, et al. Response of soil CO2 efflux to water manipulation in a tallgrass prairie ecosystem, Plant and Soil,2002,240:213-223
[149]Davidson E A, Verchot L V and Cattanio J H. Effects of soil water on soil respiration in forests and cattle pastures of eastern Amazonia. Biogeochemistry,2000,48,53-69
[150]Lee X, Wu H, Sigler J, et al. Rapid and transient response of soil respiration to rain.Global Change Biology,2004,10:1017-1026
[151]Jia B R, Zhou G SH, Wang Y, et al. Effects of temperature and soil water-content on soil respiration of grazed and ungrazed Leymus chinensis steppes, Inner Mongolia. Arid Environ,2006,67,60-76.
[152]Gaumont-Guay D, Andrew Black T, Griffis T J, et al. Interpreting the dependence of soil respiration on soil temperature and water content in a boreal aspen stand. Agric For Meteorol,2006a,140,220-235
[153]Grigis T J, Black T A, Guay D G, et al. Seasonal variation and portioning of ecosystem respiration in a southern boreal aspen forest. Agriculture and forest meteorology,2004,15:1-17
[154]Davidson E A, Trumbore S E and Amundson R. Soil warming and organic carbon content Nature, 2000,408:789-790
[155]Kirschbaum M U F. Will changes in soil organic carbon act as a positive or negative feedback on global warming? Biogeochemistry,2000,48:21-51
[156]Widen B and Majdi H. Soil CO2 efflux and root respiration at three sites in a fixed pine spruce forest seasonal and diurnal variation. Canadian journal of forest research,2001,31:786-796
[157]Pregitzer K S, King J S, Burton A J, et al. Responses of tree fine roots to temperature. New Phytologist,2000,147:105-115
[158]Vose J M and Ryan M G. Seasonal respiration of foliage, fine roots, and woody tissues in relation to growth, tissue N, and photosynthesis. Global Change Biology,2002,8:164-175
[159]Bhupinderpal S,Nordgen A,Lofvenius M O, et al. Tree root and soil heterotrophic respiration as revealed by girdling of boreal Scots pine forest:extending observations beyond the first year. Plant,Cell and Environment,2003,26:1287-1296
[160]Craine J M, Wedin D A and Chapin F S. Predominance of Ecophysiological Controls on Soil CO2 Flux in a Minnesota Grassland. Plant and Soil,1998,207:77-86
[161]Witkamp M. Decomposition of leaf litter in relation to environment,microflora and microbial respiration. Ecology,1966,47:194-201
[162]Fang C and Moncrieff J B. The Dependence of Soil CO2 Efflux on Temperature. Soil Biology and Biochemistry,2001,33:155-165
[163]Lloyd J and Taylor J A. On the temperature dependence of soil respiration. Functional Ecology,1994, 8:315-323
[164]Davidson E A, Belt E and Boone R D. Soil water content and temperature as independent or confounded factors controlling soil respiration in a temperate mixed hardwood forest. Global Change Biol,1998,4:217-227
[165]Luo Y, Wan S, Hui D, et al. Acclimatization of soil respiration to warming in a tall grass prairie. Nature,2001.13:622-625
[166]Raich J W and Potter C S. Global patterns of carbon dioxide emissions from soils.Global Biogeochemical Cycles,1995,9:23-36
[167]Borken W, Savage K, Davidson E A, et al. Effects of experimental drought on soil respiration and radiocarbon efrlux from a temperate forest soil. Global Change Biology,2006,12(2):177-193
[168]Davidson E A, Richardson A D, Savage K E, et al. A distinct seasonal pattern of the ratio of soil respiration to total ecosystem respiration in a spruce-dominated forest, Global Change Biology, 2006,12(2):230-239
[169]Huang B and Jerry W. Johnson Root Respiration and Carbohydrate Status of Two Wheat Genotypes in Response to Hypoxia. Annals of Botany,1995,75:427-432
[170]Liu H S, Li F M and Xu H. Carbon consumption of roots and its relationship to yield formation in spring wheat as affected by soil moisture. Acta-Phytoecologica-Sinica,2004,28(2):191-197
[171]Borken W, Davidson E A, Savage K, et al. Drying and wetting effects on CO2 release from organic horizons. Soil Science Society of America Journal,2003,67:1888-1896
[172]Linn D M and J W Doran. Effect of water-filled pore space on carbon dioxide and nitrous oxide production in tilled and nontilled soils. Soil Science Society of American Journal,1984,48:1267-1272
[173]Doran J W,I N Mielk and J F Power. Microbial activity as regulated by soil water-filled pore space. In:Ecology of soil microorganisms in the microhabitat environments Transactions of the 14th Int. Congress of soil Science.(Symposium III) 1991,3:94-99
[174]Skopp J, D M Jawson and D W Doran. Steady-state aerobic microbial activity as afunction of soil water content. Soil Science Society of American Journal,1990,54:1619-1625
[175]Papendick R I and G S Campbell. Theory and measurement of water potential.In:Pam J F, W R Gardner and L F Elliot, eds.water potential relations in soil Microbiology. Soil Science Society ofAmerica Special Publications Number 9. Madison, W I, U S A,1981,1-22
[176]Wang C, Bond-Lamberty B and Gower S T. Soil surface CO2 flux in a boreal black spruce fire chronosequence. Journal of Geophysical Research-Atmospheres,2002,108:art no-8224
[177]Xu M and Qi Y. Soil-surface CO2 efflux and its spatial and temporal variations in a young ponderosa pine plantation in northern California. Global Change Biology,2001,7:667-677
[178]Reinke J J,Adriano D C and McLeod K W. Effects of litter alteration on carbon dioxide evolution from a South Carolina pine forest floor. Soil Science Society of America Journal,1981,45:620-623
[179]赵景波,袁道先,马占武.2000.西安地区4月份土壤CO2释放规律研究.中国岩溶,19(4)：309-313
[180]陈四清,崔晓勇,周广胜,等.1999.内蒙古锡林河流域大针茅草原土壤呼吸和凋落物分解的CO2排放速率研究.植物学报,41(6)：645-650
[181]Wang C K and Yang J Y. Rhizosphcric and hetemtrophic components of soil respiration in six temperate forests. Global Change Biology,2007,13(1):123-131
[182]Campbell J L, Sun O J and Law B E. Supply-side controls on soil respiration among Oregon forests. Global Change Biology,2004,10(11):1857-1869
[183]江西森林,北京：中国林业出版社,1986
[184]S J Wang,H H Ruan and B Wang. Effects of soil microarthropods on plant litter decomposition across an elevation gradient in the Wuyi Mountains. Soil Biology Biochemistry,2009,6:1-7
[185]尹文英.中国土壤动物检索图鉴.北京：科学出版社,1998
[186]Wang Z Q,Burch W H,Mou P, et al. Accuracy of visible and ultraviolet light for estimating live root proportions with minirhizotmtrons. Ecology,1995,76(7):2330-2334
[187]Smit A L, Bengough A G, Engels C, et al. Root methods:a handbook.Berlin:Springer—Verlag,2000
[188]Wang Wei, Feng Jiang and T Oikawa. Contribution of Root and Microbial Respiration to Soil CO2 Efflux and Their Environmental Controls in a Humid Temperate Grassland of Japan. Pedosphere,2009,19(1):31-39
[189]Persson H. The distribution and productivity of fine roots in boreal forest. Plant Soil,1983,71:87-101
[190]姚槐应,黄昌勇,等.土壤微生物生态学及其实验技术.北京,科学出版社2006
[191]吴金水,林启美,黄巧云,等.土壤微生物生物量测定方法及其应用.北京,中国气象出版社,2006
[192]Xu L K and Baldocchi D D. Seasonal variation in carbon dioxide exchange over Mediterranean annual grassland in California, Agricultural and Forest Meteorology,2004,1232:79-86
[293]Qia Y C, Dong Y S, Liu J Y, et al. Effect of the conversion of grassland to spring wheat field on the CO2 emission characteristics in Inner Mongolia, China. Soil Tillage Research,2007,94:310-320
[194]刘立新,董云社,齐玉春,等.内蒙古锡林河流域土壤呼吸的温度敏感性.中国环境科学,2007,27：226-230
[195]Grogan P and Jonasson S. Temperature and substrate controls on intra-annual variation in ecosystem respiration in two subarctic vegetation types.Global Change Biology,2005,11:465-475
[196]Borken W, Xu Y, Dvidson E A, et al. Site and temporal variation of soil respiration in European beech, Norway spruce, and Scots pine forests.Global Change Biol,2002,8:1025-1216
[197]Khomik M, Arain M and McCaughey J H. Temporal and spatial variability of soil respiration in a boreal mixed-wood forest. Agric For Meteoro,2006,140:244-256
[198]Kang S, Doh S and Lee D, et al. Topographic and climatic controls on soil respiration in six temperate mixed-hardwood forest slopes. Korea Global Change Biol,2003,9,1427-1437
[199]Fang C,Moncrieff J B and Gholz H L. Soil CO2 efflux and its spatial variation in a Florida slash pine plantation. Plant Soil 1998,205:135-146
[200]Silver W L. The potential effects of elevated CO2 and climate change on tropical forest soils and biogeochemical cycling. Climate Change,1998,39:337-361
[201]Zou X M, Ruan H H and Fuan Y, et al. Estimating soil labile organic carbon and potential turnover rates using a sequential fumigation-incubation procedure. Soil Biology Biochemistry, 2005,37:1923-1928
[202]Rodeghiero M and Cescatti A. Main determinants of forest soil respiration along an elevation/temperature gradient in the Italian Alps. Global Change Biology, Cycles,2005,11:1024-1041
[203]M B,Rayment P G and Jarvis. Temporal and spatial variation of soil CO2 efflux in a Canadian boreal forest. Soil Biology and Biochemistry,2000,32(l):35-45
[204]Ebert G and Lenz F. Annual course of root respiration of apple trees and its contribution to theCO2 balance. Garten bauwissens chaft,1991,56(3):130-133
[205]陈光水,杨玉盛,王小国,等.格氏拷天然林与人工林根系呼吸季节动态及影响因素.生态学报,2005,25(8)：1941-1947.
[206]姜丽芬,石福臣,王化田,等.东北地区落叶松人工林的根系呼吸.植物生理学通讯,2004,40(1)：27-30.
[207]任军.落叶松和水曲柳人工林土壤、根系和土壤微生物呼吸研究,2009,24～25
[208]Bloomfield J,Vogt K A and Wargo P M. Tree root turnover and senescence/Waisel A E Y,Kafkafi U. Plant Rots,The hidden half(2),NewYork:Marcel Dekker Press,1996,363-381
[209]Vogt K A,Vogt D J,Palmiotto P A,et al. Review of root dynamics in forest ecosystems grouped by climate. climatic forest type and species. Plant and Soil,1996187(2):159-219
[210]Nadelhoffer K J. The potential effects of nitrogen deposition on fine-rot production in forest ecosystems.New Phytologist,2000,147(1):131-139
[211]Norby R J and Jackson R B. Root dynamics and global change:seeking an ecosystem perspective. New Phytologist,2000,147(1):3-12
[212]李德会,李贤伟,王巧,等.林木根系呼吸影响因素及根系呼吸对全球变化的响应.浙江林学院学报,2007,24(2)：231-238.
[213]Yang J Y,Wang C K. Partitioning soil respiration of temperate forest ecosystems in Northeastern China. Acta Phytoecologica Sinica,2006.30(2):286-294
[214]张丽华,陈亚宁,李卫红.干旱荒漠区不同土地利用/覆盖类型土壤呼吸速率的季节变化书.中国科学D辑,地球科学2006,36(增刊Ⅱ)：68-76
[215]Huang C C,Ge Y,Chang J, et al. Studies on the soil respiration of three woody plant communities in the east midsubtropical zone, China. Acta Ecologica Sinica,1999,19 (3):324-328
[216]Liu S H, Fang J Y and Makoto K. Soil respiration of mountainous temperate forests in Beijing, China. Acta Phytoecologica Sinica,1998,22 (2):119-126
[217]Wu J G, Zhang X Q and Xu Deying. The temporal variations of soil respiration under different land use in Liupan Mountainforest zone. Environmental Science,2003,24(6):23-32
[218]Yang J Y, Huang J H, Zhan X M, et al. The diurnal dynamic patterns of soil respiration for different plant communities in the agro pastoral ecotone with reference to different measuring methods. Acta Phytoecologica Sinica,2004,28 (3):318-325
[219]Janssens I A and Pilegaard K. Large seasonal changes in Q10 of soil respiration in a beech forest. Global Change Biology,2003,9:911-918
[220]Gaumont-Guay D, Andrew Black T, Griffis T J, et al. Influence of temperature and drought on seasonal and interannual variation of soil, bole and ecosystem respiration in a boreal aspen stand. Agricultural and Forest Meteorology,2006,40:203-219
[221]Chang Z Q,Shi Z M,Feng Q, et al. Temporal variation of soil respiration on sloping pasture of Heihe River bas in and effects of temperature and soil moisture on it. Chinese Journal of Applied Ecology, 2005,16(9):1603-1606
[222]Longdoz B,Yernaux M and Aubinet M. Soil CO2 efflux measurements in a mixed forest:Impact of chamber disturbances, spatial variability and seasonal evolution. Global Change Biology,2000,6:907-917
[223]Ran J C,He S Y,Cao J H, et al. A preliminary research on CO2 release in subtropical karst forest soil. Guizhou Stience,2002,20(2):42-47
[224]Li L H,Wang Q B,Bai Y F, et al. Soil respiration of a Leymus Chinese grassland stand in the Xinlin River basin as affected by over grazing and climate. Acta Phytoecologica Sinica,2000,24:680-686.
[225]Coleman D C,HunterM D,Hutton J, et al. Soil resp iration from four aggrading forested watershedsmeasured over a quarter century. Forest Ecology and Management,2002,157:247-253
[226]Yi Z QYi W M,Zhou G Y,et al. Soil carbon effluxes of three major vegetation types in Dinghushan
Biosphere Reserve. Acta Ecologica Sinica,2003,23(8):1673-1678
[227]Luo S S,Chen B F,Li Y D, et al. Litter and soil respiration in a tropical mountain rain forest in Jianfengling, Hainan ialand. Acta Ecologica Sinica,2001,21(12):2013-2017
[228]Li L H,Han X G,Wang Q B, et al. Separating root-and soil microbial contributions to total soil respiration in grazed grassland in the Xi Lin river basin. Aeta Phytoecolosica Sinica,2002,26(1):29-32
[229]Behera N,Joshi S K and Pati D P. Root contribution to total soil metabolism in a tropical forest soil from Orissa. Indian Forest Ecology Management,1990,36:125-134
[230]Cheng S Y and Zhang X Z. Method and application of separate root respiration and microorganism respiration from total soil respiration.Advance in Earth Science,2003,18(4)597-602
[231]褚金翔,张小全.川西亚高山林区三种土地利用方式下土壤呼吸动态及组分区分,生态学报,2006,26(6)：1693-1700
[232]杨金燕.东北天然次生林生态系统地下碳动态研究.东北林业大学,2005,34～37
[233]常建国.北亚热带—暖温带过渡区典型森林生态系统土壤呼吸特征研究.中国林业科学研究院,2007,80～91
[234]Buchmann, N. Biotic and abiotic factors controlling soil respiration rates in Picea abies stands. Soil Biology and Biochemistry,2000,32:1625-1635
[235]方精云,刘国华,徐篙龄.中国陆地生态系统碳库.(王如松,方精云,高林主编).现代生态学的热点问题研究.北京：中国科学技术出版社,1996,109-128
[236]Xu M and Qi Y. Spatial and seasonal variations of Q10 determined by soil respiration measurements at a Sierra Nevadan forest. Global Biogeochemical Cycles,2001,15:687-696
[237]Wagai R, Brye K R, Gower S T, et al. Land use and environmental factors influencing soil surface CO2 flux and microbial biomass in natural and managed ecosystems in Southern Wisconsin. Soil Biology Biochemistry,1998,30:1501-1509
[238]Wildung R E,Garland T R and Buschom R L. The interdependent effect of soil respiration rate and plant root decomposition in arid grassland soils. Soil Biology Biochemistry,1975.7:373-378
[239]Raich J W and Tufekcioglu A. Vegetation and soil respiration:Correlations and controls. Biogeochemistry,2000,48:71-90
[240]Potila H and Sarjala T. Seasonal Fluctuation in Microbial Biomass and Activity along a Natural Nitrogen Gradient in a Drained Peatland. Soil Biology and Biochemistry,2004,36,1047-1055
[241]Wardle D A. Controls of Temporal Variability of the Soil Microbial Biomass:a Global Scale Synthesis. Soil Biology and Biochemistry,1998,30(13):1627-1637
[242]Chen T H,Chiu C Y and Tian C A L. Seasonal Dynamics of Soil Microbial Biomass in Coastal Sand Dune Forest. Pedobiologia,2005,49:645-653
[243]Cochran V L,Elliott L F and Lewis C F. Soil Biomass and Enzyme Activity in Subarctic Agricultural and Forest Soils. Biology and Fertility of Soils,1989,7:283-288
[244]Gallardo A, Schlesinger W H. Factors Limiting Microbial Biomass in the Mineral Soil and Forest Floor of a Warm Temperate Forest. Soil Biology Biochemistry,1994,26:1409-1415
[245]Holmes W E. Zak D R. Soil Microbial Biomass Dynamics and Net Nitrogen Mineralization in Northern Hardwood Ecosystems. Soil Science Society of America,1994,58:238-243
[246]Maxwell R A and Coleman D C. Seasonal Dynamics of Nematodes and Microbial Biomass in Soils of Riparian Zone Forests of the Southern Appalacians. Soil Biology Biochemistry,1995,27:79-84
[247]王国兵,阮宏华,唐燕飞,等.北亚热带次生栋林与火炬松人工林土壤微生物生物量碳的季节动态.应用生态学报,2008,19(1)：37-42
[248]Kaye J P and Hart S C. Competition for Nitrogen between Plants and Soil Microorganisms.Trends in Ecology and Evolution,1997,12:139-143
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