龙羊峡库区土地资源的可持续利用

黄河上游的龙羊峡水利枢纽位于青海省共和盆地 ,盆地内以高寒干旱为主要特征的气候导致这里的生物—土地系统较为脆弱。近年来 ,随着人口的增加 ,对土地的掠夺式利用日甚 ,生态环境恶化有加重的趋势。共和盆地各种环境问题集中分布于龙羊峡库区。库区内土地沙漠化、草场退化、水土流失等环境问题与当地农牧民的贫因、草场超牧、滥采滥樵相互影响 ,成一恶性循环机制 ,严重影响着龙羊峡水库的正常运营及其下游地区的安全 ,制约着龙羊峡水库周边民族地区经济的可持续发展。利用国家自然科学基金项目“龙羊峡库区环境遥感动态监测系统”中所获近十年来龙羊峡库区环境恶化的有关证据 ,用持续发展的观点 ,对龙羊峡库区土地资源的持续利用提出了一些见解 ,认为库区生态环境治理和保护是当前区内经济发展的最迫切要求 ,文章中所提的土地可持续利用原则皆围绕此而进行

Sustainable Using of LandResource in Longyangxia Reservoir Area

Longyangxia key water control project lies in Gonghe Basin, Qinghai province. High altitude and dry cold climate feature make the biology land system easily broken. Recently, with the rapid growth of population leading to the robbing usage of the land resource, Which intensify the trend of worsen the ecological system, Environmental problems in Gonghe Basin is centralized on Longyangxia reservoir area. land desertification, grassland degradation, soil erosion and poverty, overusing pasture, non order felling influences each other and result in vicious circle. This situation seriously influence and threaten the running of Longyangxia reservoir and the security of its lower reaches and restrict the economical sustainable developing at the nationality area around Longyangxia reservoir. This paper depends on the material of the worsen environment in Longyangxia reservoir area within 10 years by Longyangxia reservoir area GIS, using the viewpoint of sustainable developing to put forwatd some opinion for sustainable using of the land resource in Longyangxia reservoir area. We think that preserve and bring the ecological environment under control is the most urgent request for economic development in resrevoir area at present. All of rules of sustainable using of the land resource have been put forward in this paper abiding by this viewpoint.