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一、流域基本概况甘肃省崇信县刘家沟小流域位于崇信县城西南部,地处黄土高原沟壑区向土石山丘陵区过渡的残塬沟壑地带。流域总面积28.4km2,涉及2个乡7个村3892人,人均耕地面积0.42hm2。土壤侵蚀以水力侵蚀为主,侵蚀模数为7650t/km2·a。流域内植被稀疏,严重的水土流失制约着当
First, the basic profile of the basin Chongxin County, Gansu Province Liujiagou small watershed is located in the southwest of Chongxin County, is located in the gully region of the Loess Plateau to the rocky hill area of the transitional Gugou area. The total basin area of 28.4km2, involving 2 townships 7 villages 3892 people, the per capita arable land area 0.42hm2. Soil erosion is dominated by hydraulic erosion with an erosion modulus of 7650 t / km2 · a. Watershed vegetation sparse, severe soil erosion control when