So, vegetation in the lower slope is very important to soil and water conservation on slopping land.
因此保护好坡下部的植被可以有效地防止坡面水土流失。
The number of slopping field in Deyang city. and its types and distribution were "grasped through the investigation of Land utilization in detail."
通过土地利用现状调查，摸清了德阳市坡耕地资源的数量，类型及分布。
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