论文部分内容阅读
1 流域概况与治理情况张村沟流域位于河南省陕县西张村镇东南部,为黄河水系一级支流,流域面积50km~2,水土流失面积40.42km~2,沟壑密度2.36km/km~2,年侵蚀模数达3500t/km~2。流域总人口2.81万人,人口密度561人/km~2,作物种植以苹果、粮食为主,2003年人均纯收入1376元。该流域属于典型的黄土丘陵区,地形复杂,沟壑纵横,梁峁
1 Basin Overview and Management Zhangcungou Watershed is located in the southeastern Xizhang village of Shanxian County, Henan Province, a tributary of the Yellow River water system. The drainage area is 50km ~ 2, and the soil erosion area is 40.42km ~ 2. The gully density is 2.36km / km ~ 2 , The annual erosion modulus of 3500t / km ~ 2. The total population of the basin is 28,100, with a population density of 561 persons / km ~ 2. The crops are mainly apples and grains, and the per capita net income in 2003 was 1,376 yuan. The basin is a typical loess hilly region, complex terrain, gully aspect, Liang Xuan