| 棕壤Zn~(2+)吸附特征及有机物料分解产物对吸附的影响 |
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| 引用本文： | 张大庚,依艳丽,祝艳青,栗杰,王伟.棕壤Zn~(2+)吸附特征及有机物料分解产物对吸附的影响[J].土壤通报,2010(2). |
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| 作者姓名： | 张大庚 依艳丽 祝艳青 栗杰 王伟 |
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| 作者单位： | 沈阳农业大学土地与环境学院; |
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| 基金项目： | 国家自然基金项目(40771111)资助 |
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| 摘 要： | 在研究棕壤Zn2+吸附特征的基础上,进一步研究了草炭、猪粪和蚯蚓粪3种有机物料的不同分解产物对棕壤Zn2+吸附的影响。结果表明:Langmuir方程可用于描述棕壤对Zn2+的吸附特征。随温度升高棕壤对Zn2+的吸附量降低,热力学参数分析棕壤对Zn2+吸附的结果为△G0、△H0和△S0的熵减自发反应过程。3种有机物料对Zn2+平衡吸附量影响顺序均大致为非水溶性分解产物有机物料水溶性分解产物;草炭猪粪蚯蚓粪CK。
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| 关 键 词： | 棕壤 有机物料分解产物 锌 吸附 |
Characteristics of Adsorption of Zn~(2+) on Brown Soil and Effects of Decomposition Products of Organic materials on Adsorption of Zn~(2+) |
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| ZHANG Da-geng,YI Yan-li,ZHU Yan-qing,LI Jie,WANG Wei.Characteristics of Adsorption of Zn~(2+) on Brown Soil and Effects of Decomposition Products of Organic materials on Adsorption of Zn~(2+)[J].Chinese Journal of Soil Science,2010(2). |
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| Authors: | ZHANG Da-geng YI Yan-li ZHU Yan-qing LI Jie WANG Wei |
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| Institution: | ZHANG Da-geng,YI Yan-li,ZHU Yan-qing,LI Jie,WANG Wei(L, , Environment College,Shenyang Agriculture University,Shenyang 110866,China) |
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| Abstract: | On the base of the study on the characteristics of Zn2+ adsorption in Brown soil,the effects of decomposition products of organic materials(Grass charcoal,Pig manure,Earthworm manure) on adsorption of Zn2+ were investigated further.The results showed that the Langmuir equation could be used to describe the Zn2+ adsorption isotherm.The adsorption of Zn2+ by brown soil was about to decrease as temperature getting higher.The study of thermodynamic parameters showed that Zn2+ adsorption by modified soils was sp... |
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| Keywords: | Brown soil Organic materials decomposition product Zn Adsorption |
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