摘要
本文对幕阜山五个海拔高度计21个土层的土样，测定了粘粒矿物组成、阳离子交换量、电荷量和对磷酸根的吸附。结果表明，随着海拔升高，粘粒的层状矿物、氧化物组成和有机质含量出现规律性变化，从而导致了粘粒的表面电荷性质和离子吸附特性出现相应差异，表现为阳离子交换量和阴离子交换量升高，土壤可变电荷量增高，对磷酸根离子的吸附量增大，解吸率降低。
The clay mineral composition, cation exchange capacity, the quantity of charge and phosphorus adsorption of 21 soil layers from five soil profiles at different altitudes of the Mufu Mountain were measured. The results indicated that with the increase of the aluminum, the type of layer silicates varied, and the contents of the achve iron and aluminum oxides and organic matter were raised. As a result the surface properties and anion adsorption changed correspondingly. These changesinvolved the increase of CEC and AEC, the strengthening of variable charge characterishc, the increase of phosphorus sorption capacity and the decreasing of phosphorus desorption ratio.
出处
《土壤学报》
CAS
CSCD
北大核心
1997年第3期256-262,共7页
Acta Pedologica Sinica
基金
国家自然科学基金
关键词
幕阜山
粘粒矿物
表面性质
The Mufu Mountain soil
Clay mineral
Surface properties
