砒砂岩区沙棘根系的生境适应性
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摘要
以人工种植在内蒙古砒砂岩区3年生中国沙棘根系为研究对象,运用分形理论和统计分析方法,对不同生境条件下沙棘根系分形参数、根长、根数、根系质量、根冠比等进行研究.结果表明:土壤水分对砒砂岩区沙棘根系构型影响最显著,其次是坡度,坡位对沙棘根系构型影响最小.砒砂岩区沙棘适宜种植在土壤含水率为8%左右的坡腰或坡底,坡腰坡度以30°～35°为宜.随土壤含水率的增加沙棘根冠比逐渐减小,随坡度的增加根冠比先增大后减小,随坡位的上升根冠比也表现出先增后减的趋势.沙棘在干旱贫瘠的坡腰具有根系发达、根冠比高的特征,符合固土护坡树种的基本特征与要求.
We examined root fractal parameters,root length,root quantity,root mass,root-shoot ratio of 3-year-old seabuckthorn in the Pisha sandstone area of Inner Mongolia,using the fractal theory and statistical method. The results showed that soil moisture had the most significant effect on the root architecture,followed by slope. Slope position had the least effect on the root architecture.The seabuckthorn in the Pisha sandstone area was suitable for planting on slope bottom or mid-slope with a soil moisture of about 8%. Mid-slope with a slope of 30°-35° was recommended. The rootshoot ratio of seabuckthorn decreased with increasing soil moisture. It increased at first and then decreased with increasing slope and slope position. Seabuckthorn with the characters of developed root and high root-shoot ratio in arid and barren midslope meets the basic requirements of tree species for soil-fixing and slope-protection.
We examined root fractal parameters,root length,root quantity,root mass,root-shoot ratio of 3-year-old seabuckthorn in the Pisha sandstone area of Inner Mongolia,using the fractal theory and statistical method. The results showed that soil moisture had the most significant effect on the root architecture,followed by slope. Slope position had the least effect on the root architecture.The seabuckthorn in the Pisha sandstone area was suitable for planting on slope bottom or mid-slope with a soil moisture of about 8%. Mid-slope with a slope of 30°-35° was recommended. The rootshoot ratio of seabuckthorn decreased with increasing soil moisture. It increased at first and then decreased with increasing slope and slope position. Seabuckthorn with the characters of developed root and high root-shoot ratio in arid and barren midslope meets the basic requirements of tree species for soil-fixing and slope-protection.
引文
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[14]Wang G-L(王国梁),Liu G-B(刘国彬),Hou X-L(侯喜禄).The research of species diversity after the vegetation restoration in Loess Hilly Region.Journal of Mountain Science(山地学报),2002,20(2):182-187(in Chinese)
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[17]Li J-C(李金才),Wei F-Z(魏凤珍),Wang C-Y(王成雨),et al.Effects of waterlogging on senescence of root system at booting stage in winter wheat.Acta Agronomica Sinica(作物学报),2006,32(9):1355-1360(in Chinese)
[18]Liu J-P(刘金平).Effects of sectional slope on reproductive ramets quantitative characteristics and reproductive investment of wild Arthraxon hispidus.Pratacultural Science(草业科学),2013,30(10):1602-1607(in Chinese)
[19]Song Q-H(宋清华),Zhao C-Z(赵成章),Shi Y-C(史元春),et al.Fractal root system of Melica przewalskyi along different aspect in degraded grassland.Chinese Journal of Plant Ecology(植物生态学报),2015,39(8):816-824(in Chinese)
[20]Yang X-L(杨小林),Zhang X-M(张希明),Li Y-L(李义玲),et al.Root fractal characteristics at the hinterland of Taklimakan Desert.Arid Land Geography(干旱区地理),2009,32(2):249-254(in Chinese)
[21]Zhao C-C(赵串串),Meng H-L(孟汉龙),Song R-Z(宋枘泽),et al.Study on the biomass and site factors of Salix oritrepha in the Loess Hilly Region of Qinghai Province.Forest Resources Management(林业资源管理),2014(1):66-70(in Chinese)
[22]Bai H-X(白海霞),Zhang R-H(张荣华),Zhang X-H(张现慧),et al.Populus euphratica seedling root growth characteristics under different water treatment.Forest Resources Management(林业资源管理),2015(5):61-66(in Chinese)
[23]Chen X-X(陈信信),Ding Q-S(丁启朔),Li Y-N(李毅念),et al.Three dimensional fractal characteristics of wheat root system for rice-wheat rotation in Southern China.Scientia Agricultura Sinica(中国农业科学),2017,50(3):451-460(in Chinese)
[2]Bi C-F(毕慈芬),Wang F-G(王富贵).Research on soil erosion mechanism in soft rock regions.Journal of Sediment Research(泥沙研究),2008(1):70-73(in Chinese)
[3]Bi C-F(毕慈芬),Tai Y-L(邰源林),Wang F-G(王富贵),et al.Probe to integrated soil conservation techniques for soil erosion prevention in soft rock areas.Journal of Sediment Research(泥沙研究),2003(3):63-65(in Chinese)
[4]Li H-E(李怀恩),Yang F-S(杨方社),Zhang R-J(张日俊),et al.Field experiment on the effects of the seabuckthorn flexible dam on water flow.Journal of Hydroelectric Engineering(水力发电学报),2009,28(1):124-129(in Chinese)
[5]Yang F-S(杨方社),Li H-E(李怀恩),Yang L-A(杨联安),et al.Spatio-temporal dynamic change of soil water in gully with seabuckthorn plant“flexible dam”.Journal of Soil and Water Conservation(水土保持学报),2007,21(1):107-110(in Chinese)
[6]Yang FS,Cao MM,Li HE,et al.Simulation of sediment retention effects of the single seabuckthorn flexible dam in the Pisha sandstone area.Ecological Engineering,2013,52:228-237
[7]Wang H(王浩),Yang F-S(杨方社),Li H-E(李怀恩),et al.Experimental research on effects of seabuckthorn flexible dam on gully sediment particle size distribution and organic matter in Pisha sandstone area.Journal of Soil and Water Conservation(水土保持学报),2017,31(5):158-163(in Chinese)
[8]Yang FS,Bi CF,Cao MM,et al.Simulation of sediment retention effects of the double seabuckthorn plant flexible dams in the Pisha sandstone area of China.Ecological Engineering,2014,71:21-31
[9]Yang FS,Yang YQ,Li HE,et al.Removal efficiencies of vegetation-specific filter strips on nonpoint source pollutants.Ecological Engineering,2015,82:145-158
[10]Cheng J-M(程积民),Wan H-E(万惠娥),Yong S-P(雍绍萍),et al.Soil water dynamic of Hippophae rhamnoides in Loess Hilly Region.Acta Botanica BorealiOccidentalia Sinica(西北植物学报),2003,23(8):1352-1356(in Chinese)
[11]Li G-Q(李根前),Huang B-L(黄宝龙),Tang D-R(唐德瑞),et al.Age-structure dynamics and genetic consequences of Hippophea rhamnoides L.subsp.sinensis clone population in Mu Su sandland.Chinese Journal of Applied Ecology(应用生态学报),2001,12(3):28-31(in Chinese)
[12]Chen Y-M(陈云明),Chen Y-Q(陈永勤).Mechanism of hydrology and soil and water conservation effect of artificial seabuckthorn forest in Loess Hilly Region.Acta Botanica Boreali-Occidentalia Sinica(西北植物学报),2003,23(8):1357-1361(in Chinese)
[13]Ruan C-J(阮成江),Li D-Q(李代琼).Community characteristics of Hippophae rhamnoides forest and water and nutrient condition of the woodland in Loess Hilly Region.Chinese Journal of Applied Ecology(应用生态学报),2002,13(9):1061-1064(in Chinese)
[14]Wang G-L(王国梁),Liu G-B(刘国彬),Hou X-L(侯喜禄).The research of species diversity after the vegetation restoration in Loess Hilly Region.Journal of Mountain Science(山地学报),2002,20(2):182-187(in Chinese)
[15]Xiang Z-Y(向子云),Luo X-W(罗锡文),Zhou X-C(周学成),et al.Experimental study on observation of original shape of crop root system with multi helical CTtechnology.CT Theory and Applications(CT理论与应用研究),2006,15(3):1-5(in Chinese)
[16]Chen X-X(陈信信),Ding Q-S(丁启朔),Li Y-N(李毅念),et al.Dimensional fractal of post-paddy wheat root architecture.Chinese Journal of Applied Ecology(应用生态学报),2015,26(6):1711-1717(in Chinese)
[17]Li J-C(李金才),Wei F-Z(魏凤珍),Wang C-Y(王成雨),et al.Effects of waterlogging on senescence of root system at booting stage in winter wheat.Acta Agronomica Sinica(作物学报),2006,32(9):1355-1360(in Chinese)
[18]Liu J-P(刘金平).Effects of sectional slope on reproductive ramets quantitative characteristics and reproductive investment of wild Arthraxon hispidus.Pratacultural Science(草业科学),2013,30(10):1602-1607(in Chinese)
[19]Song Q-H(宋清华),Zhao C-Z(赵成章),Shi Y-C(史元春),et al.Fractal root system of Melica przewalskyi along different aspect in degraded grassland.Chinese Journal of Plant Ecology(植物生态学报),2015,39(8):816-824(in Chinese)
[20]Yang X-L(杨小林),Zhang X-M(张希明),Li Y-L(李义玲),et al.Root fractal characteristics at the hinterland of Taklimakan Desert.Arid Land Geography(干旱区地理),2009,32(2):249-254(in Chinese)
[21]Zhao C-C(赵串串),Meng H-L(孟汉龙),Song R-Z(宋枘泽),et al.Study on the biomass and site factors of Salix oritrepha in the Loess Hilly Region of Qinghai Province.Forest Resources Management(林业资源管理),2014(1):66-70(in Chinese)
[22]Bai H-X(白海霞),Zhang R-H(张荣华),Zhang X-H(张现慧),et al.Populus euphratica seedling root growth characteristics under different water treatment.Forest Resources Management(林业资源管理),2015(5):61-66(in Chinese)
[23]Chen X-X(陈信信),Ding Q-S(丁启朔),Li Y-N(李毅念),et al.Three dimensional fractal characteristics of wheat root system for rice-wheat rotation in Southern China.Scientia Agricultura Sinica(中国农业科学),2017,50(3):451-460(in Chinese)