中文摘要：

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△G〈0、△H〈0和△S〈0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。

英文摘要：

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 spontaneous reaction with the entropy reduction.The order of organic materials＇ impacts on adsorption capacity of Zn2＋ was Insoluble decomposition product of grass charcoal Insoluble decomposition product of pig manure Insoluble decomposition product of earthworm manure Soluble decomposition product of grass charcoal Soluble decomposition product of pig manure Soluble decomposition product of earthworm manure CK.