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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 ,提供了许多有益的启示
The concept of soil erosion chain was first proposed. The connotation and extension of the concept of soil erosion chain were briefly analyzed, and the difference and relationship between the soil erosion chain and the so-called vertical zonation of soil erosion were briefly analyzed. It is pointed out that the soil erosion chain has three prominent features, such as hierarchy, complexity of dynamic evolution and type diversity. From the characteristics of hydrodynamic parameters of water flow in slope, the characteristics of energy transfer in erosion process were studied. These provide many beneficial revelations for studying and revealing the dynamic mechanism of the soil erosion chain in the slope-gully system and for controlling and controlling the water and soil loss in the hilly-gully region of the Loess Plateau