论文部分内容阅读
根据长江中上游水土流失程度,长江变成黄河已是无可辩驳的事实;如果不立即防治,其后果比黄土高原严重得多。目前,光山秃岭迅猛发展,使几十万年形成的沃土变为不毛之地;旱灾和洪灾交替发生,滑坡和泥石流频繁而严重;淤浅水库和河床,妨碍交通航运;广大人民生活贫困,部分灾民靠救济为生。综合治理,尽快改变现状,脱贫致富,希望很大。主要对策有:1、用生态经济的系统工程,治理长江中上游的水土流失;2、营造防护林体系工程,恢复和扩大以森林为主体的生态系统;3、抓住重点,培养样板;4、加强科学研究工作,充分发挥其先导作用。
According to the extent of soil erosion in the middle and upper reaches of the Yangtze River, it is an irrefutable fact that the Yangtze River has become a Yellow River. If not immediately controlled, the consequences are much more serious than in the Loess Plateau. At present, the rapid development of the bald valleys in Guangshan has turned fertile land formed by hundreds of thousands of years into barren land. Droughts and floods alternately occur with frequent and serious landslides and mudslides. Stranded shallow reservoirs and river beds impede traffic and shipping. The vast majority of the people live in poverty, Some victims rely on relief for a living. Comprehensive management, as soon as possible to change the status quo, poverty alleviation and prosperity, great hope. The main countermeasures are as follows: 1, using ecological and economic systems engineering to control soil and water loss in the middle and upper reaches of the Yangtze River; 2, creating a shelterbelt project to restore and expand the forest-based ecosystem; 3, focusing on and cultivating a model; 4, Strengthen scientific research and give full play to its leading role.