论陕南水土保持治理方略

On a General Plan of Soil and Water Conservation Management of South Shaanxi Province

陕南是长江流域水土流失最为严重的地区 ,年输入长江泥沙量达 0 9亿t。该区山丘面积大、森林面积小、坡耕地多 ,重点应搞好封山育林和陡坡退耕 ,充分发挥生物资源潜力 ,形成主导产业 ,发展县域经济 ;建设基本农田应以深山平地改土、兴建石坎梯田为主攻方向 ,大力实现梯田变为水浇地和水田 ;

The south of Shaanxi is the most severe soil and water loss area of the Yangtze River basin. The annual sediment delivery into the Yangtze River is 90 million tons. The region has large area of hills and small area of forestry. The sloped farmland is the main in that region. Therefore, the focal point of the work should close hillsides to facilitate afforestation and return the steep sloped lands to trees and grasses and make the most of potentiality of biological resources for forming a leading industry and developing regional economy. The orientation of building basic capital farmlands should take leveling the lands, improving the soil and building terraced fields with stone ridges as the main and try to put terraced fields into irrigated and paddy fields. It should implement the policy of ecological resettlement, hills management and river protection.