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据水利部的调查显示,全国水土流失面积仍然呈加大扩展态势,这成为目前的头号环境问题。根据水利部第二次遥感普查结果,日前全国水土流失面积已达367万km~2,占国土总面积的1/3以上。其中以黄河流域水土流失状况最为严重,目前已达45万km~2,占流域总面积的60%。水土流失主要表现为土地沙
According to a survey conducted by the Ministry of Water Resources, the area of soil and water loss in the country is still increasing. This has become the number one environmental issue at present. According to the results of the second remote sensing survey conducted by the Ministry of Water Resources, the area of soil and water loss in China has reached 3.67 million km 2 recently, accounting for more than one-third of the total land area. Among them, the soil erosion in the Yellow River Basin is the most serious, and has now reached 450,000 km 2, accounting for 60% of the total basin area. Soil erosion is mainly manifested as land sand