陕西省水土保持生态环境建设调研报告

全省水土流失面积 13 75万km2 ,年平均输沙量 9 2亿t ,占全国水土流失总量的 1/5 ,截至 2 0 0 0年底 ,全省已治理水土流失面积 8 5万km2 。 1999年遥感普查 ,土壤侵蚀面积仍有 12 89万km2 。退耕还林还草要把草灌作为陕北植被重建的主体 ,纳入小流域综合治理。建议水土保持在观念、管理和技术等方面都要创新 ;国家加强对水土保持的统一管理 ,依法由水土保持部门主管。

Investigation Report of Soil and Water Conservation Ecological Environment Construction in Shaanxi Province

There is soil and water erosion area of 137 500 km 2 in Shaanxi province with annual average sediment transportation of 920 million tons that account for one fifth of total soil and water loss in China. There have been erosion areas of 85 thousand km 2 under control up to the end of 2000. According to general survey through remote sensing in 1999, there are still soil erosion areas of 128.9 thousand km 2. Shrub and grass plantation should be taken as the main means of northern Shaanxi vegetation rehabilitation of small watershed comprehensive harness in recovery of cultivated slope land into forest and grass land. It is suggested that we should bring forth new ideas in soil and water conservation mind set, management, technology and so on, government should strengthen the united management of soil and water conservation, the soil and water conservation department should take charge in according to the law.