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小流域治理拦截径流的工程措施,一般要求一次降雨100毫米水土不下山.施工以挖坑为主,土壤不回填.而造林前的整地工程是为了改善造林地的土壤条件,增加蓄水,为提高造林成活率,促进林木生长创造条件.施工以穴状翻耕为主,要求拣净石块、草根,打碎土块,表土回填穴内.上述两种工程除规格大小不同外,主要区别是:一个要求回填土,一个不回填土.为了使两者正确结合,做到一次施工兼顾两种需要,既能拦截径流,又为造林创造条件,特提出如下三点建议:
Small watershed management interception of runoff engineering measures, the general requirements of a rainfall of 100 mm soil and water does not go down the mountain. Construction to dig pits, soil does not backfill. And afforestation before the land preparation project is to improve the soil conditions of afforestation, increase water storage for Improve the survival rate of afforestation, and promote the growth of trees to create the conditions .To acupuncture plowing tillage mainly requires the selection of clean stones, grass roots, broken clods, topsoil backfill .In addition to the above two projects of different sizes, the main difference is : One requires backfill, one does not backfill in order to make the correct combination of both to achieve a construction of both needs, both to intercept runoff, but also to create conditions for afforestation, made the following three recommendations: