摘要
首次提出土壤侵蚀链的概念 ,简要分析了土壤侵蚀链概念的内涵与外延 ,以及土壤侵蚀链与通常所称的土壤侵蚀垂直分带的区别与联系。指出土壤侵蚀链具有等级层次性 ,动态演化过程的复杂性及类型多样性等 3个突出特征。从坡面水流的水动力参数变化特点 ,研究了侵蚀过程能量传递的特征。这些为研究和揭示坡沟系统土壤侵蚀链的动力机制 ,以及有效控制与治理黄土丘陵沟壑区的水土流失现象 。
The conception of soil erosion chain is first put forward, the intension and extension of the conception, the difference and relation of the soil erosion chain and the soil erosion vertical zone are analyzed. It is proposed three distinct characters that are soil erosion chain with rank and hiberarchy, complexity and diversity of the dynamic evolvement. From the variety of the hydrodynamic parameters of slope face flow, the character of energy transferring during erosion is studied. These supply much useful revelation for studying the dynamic mechanism of the soil erosion chain in slope and ditch system, and effectively controlling water and soil losses in loess hilly and gully area.
出处
《水土保持学报》
CSCD
北大核心
2000年第3期79-83,共5页
Journal of Soil and Water Conservation
基金
国家自然科学基金!(496 71 0 5 2 )
黄土高原土壤侵蚀与旱地农业国家重点实验室资助项目
关键词
侵蚀物质
侵蚀能量
侵蚀形态
土壤侵蚀链
erosion material
erosion energy
erosion modality
soil erosion chain
