本文结合小试验和大面积推广实践，论述了反坡梯土在黔西北山区水土保持中的重要地位和作用：在旱坡地上修建反坡梯土，是一项投资少效益高的水土保持措施，能够将旱坡地面上的冲刷水变成地下渗透水，确保梯土内的肥水肥土不被冲刷流失，把“三跑土”变成“三保土”，从而提高粮食产量。在没有石料砌石坎的砂页岩发育地段和没有取石资金投入的贫困地区有很大的发展前景。

This text the combination is small and on trial to discuss the soil of versa hillside fileds steps with big area expansion in the guizhou important position within water and soil conservation of northwest mountain area is with the function:Fix to set up the soil of versa hillside fileds steps on the dry sloping fields, and is a great water and soil conservation measure ofeffect of a fee province, and can is last the dry sloping fields of flush the water to become the underground to permeate the water, and insure the manure water manure in the steps soil the soil to not is flushed to run off," three run the soil the " become" three keep soil", from but increase the food yield.