水土保持是综合性的工作,有农业、林业、水利、牧业等措施。这些不同的措施,可归纳为生物措施和工程措施两大类。在水土流失严重的地方,工程措施往往给生物措施创造先决条件,而生物措施反过来巩固工程措施,二者相互依存。工程措施是水土保持治标的方法,一般说工程治理后 Soil and water conservation is a comprehensive work, agriculture, forestry, water conservancy, animal husbandry and other measures. These different measures can be summarized into two major categories of biological measures and engineering measures. Where soil erosion is serious, engineering measures often create the preconditions for biological measures, which in turn reinforce engineering measures, which are interdependent. Engineering measures are the root cause of soil and water conservation methods, generally said that after the project management