The sediment discharge of rivers with cultivated waste land of dry farm, population density are indirect proportion, it with forest cover degree, per capita output of grain are inverse proportion.
河流输少量与旱坡耕地垦殖率、人口密度成正比，与森林覆盖率、人均占有粮食成反比。
The sediment discharge of rivers with cultivated waste land of dry farm, population density are indirect proportion, it with forest cover degree, per capita output of grain are inverse proportion.
河流输少量与旱坡耕地垦殖率、人口密度成正比，与森林覆盖率、人均占有粮食成反比。
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