坡长通常是指地面上一点沿水流方向到其流向起点间的最大地面距离在水平面上的投影长度。
坡长对侵蚀产沙的影响与降雨强度密切相关。
The effect of slope length on erosion sediment is different at different rain intensity.
PAM覆盖度不同，坡长对侵蚀产沙过程的影响也不同。
The effect of slope length on erosion sediment is different at different PAM coverage.
坡长是影响坡面径流和水流侵蚀产沙的重要地貌因素之一。
Slope length is one of the important geomorphologic factors affecting the surface runoff and sediment yield.
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