冀西北农牧交错带表层土壤营养元素特征研究——以河北省康保县为例
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摘要
为了查明冀西北农牧交错带土壤营养状况和理化性状,以4*4km~2网络样方对冀西北康保县表层土壤进行了取样分析研究,分析测试了大量元素N、P、K,中量元素Ca、Mg,微量元素Fe、Mn、Cu、Zn、Mo、B,pH值及有机碳(orgC)。研究结果表明:康保土壤pH平均值为8. 54,属强碱性土壤;除Ca、Mg、K元素含量丰富外,其余营养元素较为缺乏; K和pH值为弱变异,其余元素均为中等变异;相关性分析显示,大多数营养元素在p <0. 01水平上呈显著性相关,认为其含量主要受成土母质影响,而Ca和K在p <0. 01水平上与其它营养元素相关性程度低,推测与当地的干旱气候和植物吸收有关。Fe、Mn、Cu、Zn、Mo、B及有机碳(orgC)与pH值呈负相关关系。丰缺评价显示K、Mg处于丰富水平,超过50%区域的N、Ca处于三级适中水平,有机碳(orgC)和P处于缺乏和极缺乏水平,微量元素总体处于极缺乏状态。空间分布图显示,芦家营乡、处长地乡、屯垦镇周围全量营养元素含量水平相对较高。
To investigate the soil nutrition and physicochemical characters of agro-pastoral ecotone in northwestern Hebei province,the plots of surface soil sampling has been implemented according to 4 × 4 km~2 network in Kangbao filed,the microelement of N,P,the middle element of Ca,Mg and the microelement of Fe,Mn,Cu,Zn,Mo,B,pH and organic carbon( orgC) were tested and analyzed.The results show that the average pH of soil is 8.54 belonging to the strongly alkaline soil.The soil nutrition is lack except Ca,Mg and K; K and pH are weak variability,and the others belong to moderate variability.The correlation analysis shows that most of the elements are significantly correlated at the level of p < 0.01.The soil nutrition is affected by soil parent material.Ca and K are less correlated with other elements at the level of p < 0.01.Fe,Mn,Cu,Zn,Mo,N,B and organic carbon negatively relate to pH.The evaluation of abundance indicates that K and Mg content is rich,N and Ca content is moderate level more than 50% areas,and organic carbon and P content are poor or quite poor.The microelements contents are especially lack.The spatial distribution map displays that total nutrition elements contents of Lujiaying,Chuzhangdi and Tunkenzhen are higher than other area in the field.
To investigate the soil nutrition and physicochemical characters of agro-pastoral ecotone in northwestern Hebei province,the plots of surface soil sampling has been implemented according to 4 × 4 km~2 network in Kangbao filed,the microelement of N,P,the middle element of Ca,Mg and the microelement of Fe,Mn,Cu,Zn,Mo,B,pH and organic carbon( orgC) were tested and analyzed.The results show that the average pH of soil is 8.54 belonging to the strongly alkaline soil.The soil nutrition is lack except Ca,Mg and K; K and pH are weak variability,and the others belong to moderate variability.The correlation analysis shows that most of the elements are significantly correlated at the level of p < 0.01.The soil nutrition is affected by soil parent material.Ca and K are less correlated with other elements at the level of p < 0.01.Fe,Mn,Cu,Zn,Mo,N,B and organic carbon negatively relate to pH.The evaluation of abundance indicates that K and Mg content is rich,N and Ca content is moderate level more than 50% areas,and organic carbon and P content are poor or quite poor.The microelements contents are especially lack.The spatial distribution map displays that total nutrition elements contents of Lujiaying,Chuzhangdi and Tunkenzhen are higher than other area in the field.
引文
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[3]王激清,张宝悦.冀西北农牧交错带土壤养分时空变异与生产特性研究[J].干旱区资源与环境,2014,28(3):86-90.
[4]代士良,马礼,刘云亮.冀北高原农牧交错带土地利用对土壤养分的影响研究-以康保县为例[J].安徽农业科学,2009,37(17):8119-8121.
[5]谢花林,李波,刘黎明,等.基于空间统计学和GIS的农牧交错带土壤养分空间特征分析-以内蒙古翁牛特旗为例[J].水土保持学报,2006,20(2):73-76.
[6]马玉峰,王文明,贾宝全.半干旱农牧交错区土壤养分空间变异特征分析-以内蒙古伊金霍洛旗为例[J].干旱区资源与环境,2007,21(11):125-132.
[7]要洁,河北坝上草地土壤风蚀特征研究-以康保县为例[D].石家庄:河北师范大学硕士论文,2012:1-50.
[8]王红营,郭中领,王仁德,等.河北坝上植被恢复措施对土壤性质的影响[J].水土保持研究,2016(5):74-79.
[9]石晓丽,王卫.生态系统功能价值综合评估方法与应用-以河北省康保县为例[J].生态学报,2008,28(8):3998-4006.
[10]王喜宽,朱锁,刘东,等.内蒙古河套地区多目标区域地球化学调查成果及其意义[J].现代地质,2008,22(6):1064-1070.
[11]李随民,栾文楼,魏明辉,等.河北省唐-秦地区表层土壤地球化学质量评价[J].中国地质,2009,36(4):932-939.
[12]熊毅,李庆逵.中国土壤[M].北京:科学出版社,1987:56-62.
[13]方如康.环境学词典[M].北京:科学出版社,2003:76-80.
[14]朱礼学,邓泽锦.土壤pH值及CaCO3在多目标地球化学调查中的研究意义[J].物探化探计算技术,2001,21(2):140-143.
[15]吕贻忠,等.土壤学[M].北京:中国农业出版社,2006:65-76.
[16]石媛媛,唐健,王会利,等.广西油茶林地土壤肥力状况[J].广西林业科学,2015,44(4):408-411.
[17]魏复盛,杨国治.中国土壤元素背景值基本统计量及其特征[J].中国环境监测,1991(1):1-6.
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