三江源区东北部生态环境现状及防治策略  

The status of eco-environment of northeast regions of Yangtze,Yellow and Yalu Tsangpo rivers and protecting strategies

作　　者：王启基[1] 王发刚 周华坤[1] 张玉[3] 

机构地区：[1]中国科学院西北高原生物研究所,青海西宁810001 [2]青海省职业技术学院,青海湟源810260 [3]青海省草原总站,青海西宁810001

出　　处：《草业科学》2010年第2期59-65,共7页Pratacultural Science

基　　金："十五"国家科技攻关计划重大项目(2004BA606A-02);青海三江源自然保护区生态保护和建设总体规划科研课题及应用推广项目(2005-SN-2)

摘　　要：通过实地调查、座谈、交流和对牧民的访问,以及对三江源区东北部4县生态环境现状、草地退化原因分析,认为该区草地已呈现全面退化的态势。长期超载过牧是导致三江源区草地退化的主要驱动力,害鼠的孳生蔓延、冻溶、水蚀、风蚀等条件是促进草地退化的辅助因素。人类活动和全球气候变暖的共同作用加速了草地退化的进程。在分析此现状的基础上提出了三江源东北部4县生态保护和可持续发展的策略和建议。A conclusion for the status of eco-environment of Yangtze, Yellow and Yalu Tsangpo rivers source region was obtained after studying by field investigation and interview to local herdsmen. Nowadays, the grassland has degraded entirely. The main reason is overgrazing for long-terms, followed by rats, freezing and thawing, and erosions by water and wind. Besides, human activities and global warming promote the speed of degradation. Strategies and some advices were proposed for protecting ecological system and sustainable development for four counties of this region.

关 键 词：三江源区 生态环境 退化草地 防治策略 

分 类 号：S812[农业科学—草业科学]