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1白寺小流域水土流失现状及治理的必要性1.1水土流失现状白寺小流域位于水土流失严重的火龙岗丘陵区上,白寺村白寺山西南部。耕地面积17.33 hm2,主要种植小麦、玉米、高粱、谷子、棉花等作物,属于丘陵地带,地面坡度一般在0~25°之间,地形崎岖,沟壑纵横,沟壑密度为1.50 km/km2,切割深度一般
1 Current Situation of Soil and Water Loss in Baisi Small Watershed and Necessity of Treatment 1.1 Present Status of Soil and Water Loss Baisi small watershed is located in the hilly area of Huilonggar where water and soil loss are serious. The cultivated land area is 17.33 hm2. The main crops are wheat, corn, sorghum, millet, cotton and other crops belonging to the hilly areas. The slope of the ground is generally between 0 and 25 °, with rugged terrain and ravines. The gully density is 1.50 km / km2 and the cutting depth general