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一、流域概况 新庄是山东省沂水县诸葛镇的一条小流域,属淮河流域沂河水系,地处沂蒙山区腹地的跋山水库上游。全流域901户,3116人,总土地面积6.87km~2,其中耕地135.3hm~2,宜林荒山荒滩517hm~2,分布在八座山梁七条沟内。该流域属石灰岩溶蚀区,四面环山,沟壑纵横,海拔220～550m。治理前,这里植被稀疏,水土流失严重,流失面积达6.57km~2,其中中度以上侵蚀面积4.62km~2,占总面积的67.2％,年侵蚀深2.9mm,年侵蚀模数3433t/km~2。严重的水土流失造成流域内土地日益贫瘠,致使粮食单产停滞不前,长期徘徊在3000kg/hm~2左右,1984年人均产粮210kg,人均收入314元,个别农户不足200元,群众生活贫困。
First, the basin profile Xinzhuang Yishui County, Shandong Province, Zhuge a small watershed, is the Huaihe River Yi River, is located in the Yimeng mountain hinterland Bashang reservoir upstream. There are 901 households and 3116 persons in the whole basin, with a total land area of 6.87km 2, of which 135.3hm 2 for arable land and 517hm -2 for arable barren hills of a forest, distributed within the Qisagou of the eight mountain towers. The basin is limestone dissolution area, surrounded by mountains, ravines aspect, elevation of 220 ~ 550m. Before treatment, there was sparse vegetation and serious water and soil loss, with a loss area of 6.57km ~ 2, of which moderate to above erosion area was 4.62km ~ 2, accounting for 67.2% of the total area, with annual erosion depth of 2.9mm and annual erosion modulus of 3433t / km ~ 2. Serious soil erosion has resulted in increasingly poor land in the basin, resulting in a stagnant grain yield and a long-term hovering around 3000kg / hm ~ 2. Per capita grain yield was 210kg in 1984, per capita income was 314 yuan, and individual farmers were less than 200 yuan. People lived in poverty.