主要内容：1，基于坡面尺度上对水土流失过程的描述，并将区域尺度水土流失的过程划分为水和沙两个子过程。
The main contents were as follows:1). To divide the regional soil erosion into two sub-processes of water and sand, according to the description of the process of sloping soil erosion;
地下水土流失是水土流失过程中非常重要且常被忽视的部分，喀斯特地下水土流失机理涉及的领域很广，与地下岩—土—水—生物作用机理有着内在的关联性。
The mechanism of soil and water loss underground in karst region involves many fields and has internal relevance with the mechanism of rock-soil-water-organism underground.
水电站施工过程中的水土流失及水土保持的问题逐渐受到众多学者的关注。
Hydropower station in the process of construction of soil and water loss and soil and water conservation has attracted many scholars' attention.
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