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记者从水土保持部门获悉,位于宝鸡西北部的千河流域,水土流失面积已达到流域总面积的80％,年土壤侵蚀模数每平方公里为2390吨,年侵蚀总量达到776.8万吨,表层土壤每年损失2.2mm,在侵蚀严重地区每亩年损失表土4.5m~3,实在令人担忧。 其一,冲毁土地,减少良田,降低土壤肥力,严重影响了农业的增产增收、区域经济的发展和脱贫致富目标的迅速实现。
Reporter learned from the soil and water conservation department, located in the basin of northwestern Baoji in Zhejiang, soil erosion area has reached 80% of the total basin area, annual soil erosion modulus of 2390 tons per square kilometer, the total annual erosion reached 7.768 million tons, the surface Soil loss of 2.2mm per year, in serious erosion areas lose topsoil per acre 4.5m ~ 3, it is really worrying. First, the destruction of land, the reduction of fertile land and the reduction of soil fertility have seriously affected the rapid increase of agricultural production and income, the development of regional economy and the goal of getting rid of poverty and becoming rich.