Based on the double features of soil erosion and the source of runoff and silt in this area,it was raised that contolling guiding principle take comprehensive prevention of soil and water loss in slope farmland as a center and developmental controlling of barren hill and barren slope as stress,as well as the model of developmental controlling in the earthy-rocky mountain area was raised in this paper.Author analyzed the benefit of reduced silt of various of soil and water conservation measures as well as co...
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