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水土保持职能部门对所辖区按地形预先划定若干小流域，作为管理单元制定的整套档案索引及评价办法，已显示出在提高管理工作水平和效率，增加职能人员运筹帷幄的能力以及判定水土流失面积消长，进行监督监测的辅助手段等方面的良好作用。
Soil and water conservation departments of the area by the terrain pre-defined a number of small watershed, as the management unit to develop a complete set of archives index and evaluation methods, has shown that in improving the level of management and efficiency, ability to increase functional staff strategist and determine the area of soil and water loss Growth and decline, supervision and monitoring of the auxiliary means of good effect.