鄂、湘两省山地土壤粘粒矿物的研究──Ⅳ.幕阜山土壤的粘粒矿物与表面性质
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* 国家自然科学基金


STUDY ON CLAY MINERALS OF MOUNTAIN SOILS IN HUBEI AND HUNAN PROVINCES──IV. THE CLAY MINERALS AND SURFACE PROPERTIES OF THE MUFU MOUNTIN SOILS
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    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。

    Abstract:

    The clay mineral composition, canon 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 altitude, the type of layer silicates varied, and the contents of the active iron and aluminum oxides and organic matter were raised. As a result, the surface properties and anion adsorption changed correspondingly. These changes involved the increase of CEC and AEC, the strengthening of variable charge characteristic, the increase of phosphorus sorption capacity and the decreasing of phosphorus desorption ratio.

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胡红青,徐凤琳,李学垣.鄂、湘两省山地土壤粘粒矿物的研究──Ⅳ.幕阜山土壤的粘粒矿物与表面性质[J].土壤学报,1997,34(3):256-262. DOI:10.11766/trxb199506230304 Hu Hongqing, Xu Fenglin, Li Xueyuan. STUDY ON CLAY MINERALS OF MOUNTAIN SOILS IN HUBEI AND HUNAN PROVINCES──IV. THE CLAY MINERALS AND SURFACE PROPERTIES OF THE MUFU MOUNTIN SOILS[J]. Acta Pedologica Sinica,1997,34(3):256-262.

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  • 收稿日期:1995-06-23
  • 最后修改日期:1996-12-04
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  • 在线发布日期: 2013-02-25
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