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一河峪乡地处榆社县西部边沿,云竹水库上游。全乡总面积32.16万亩,占水库控制面积的66.4％,其中水土流失面积24.5万亩,占总面积的75％。境内群山环绕,山恋起伏,除河流两岸为黄土丘陵外,其余多属土石山区。2.89万亩农耕地中,坡耕地占四分之一,每逢大雨暴雨,跑水、跑土、跑肥,产量低而不稳,土壤侵蚀模数1700T/km~2。每年有55万吨泥沙淤积水库,
A river valley Township is located in the western edge of Yushe County, upstream bamboo cloud. The township, the total area of 321,600 mu, accounting for 66.4% of reservoir area under control, of which soil erosion area of 24.5 hectares, accounting for 75% of the total area. Surrounding mountains, mountain love ups and downs, in addition to loess hilly both sides of the river, the rest are mostly rock and mountain. Of the 28900 mu of arable land, sloping farmland accounts for one quarter of the total. Soil erosion modulus is 1700T / km ~ 2 during heavy rain and heavy rain, running water, running earth and running fertilizer. Each year 550,000 tons of silt reservoir,