PARTICLE CHARACTERISTICS OF SEDIMENT IN EROSION ON HILLSLOPE

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Publication date
1 January 2012
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Abstract

坡面侵蚀过程包括雨滴击溅和径流冲刷引起的土壤颗粒分离、泥沙输移和沉积三大过程[1]。降雨过程中,由于表土团聚体的崩解、分散等水土间的相互作用,改变了土壤表面结构使土壤颗粒更紧密地堆积,入渗率降低、径流量增加。黄土高原土壤侵蚀导致土地质量退化和土壤细颗粒的流失。侵蚀泥沙挟带的养分、农药及其他化学物质造成水资源污染和生态环境恶化,导致面源污染,在许多面源模型中均涉及侵蚀泥沙颗粒大小分布情况

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    Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources

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