黄河流域青海片生态承载力动态评价  

Dynamic assessment of ecological carrying capacity of Yellow River Basin in Qinghai Province

作　　者：隋欣[1] 齐晔[1] 

机构地区：[1]清华大学公共管理学院公共政策研究所,北京100084

出　　处：《生态学杂志》2007年第3期406-412,共7页Chinese Journal of Ecology

基　　金：中国博士后科学基金资助项目(023299016)。

摘　　要：采用基于生态系统健康的生态承载力评价模型与方法,研究了黄河流域青海片生态承载力的动态变化。结果表明:生态承载力指数随时间的推移呈下降趋势,由1985年的0.5096降至1999年的0.4700和2015年的0.4263;黄河流域青海片生态系统健康等级较低,多处于亚健康状态或不健康状态;空间上,以湟水流域和黄河干流区域生态系统健康等级最低;各项分指数中,以资源环境承载力指数相应的生态系统健康等级最高,多处于健康状态;人类潜力和生态弹性力是制约黄河流域青海片生态系统健康的主要因素。By using the methods of quantitative ecological carrying capacity （ ECC ） appraisal, the dynamic changes of the ECC of Yellow River Basin in Qinghai Province were investigated. The results showed that the ECC index decreased from 0. 5096 in 1985 to 0. 4700 in 1999, and would be 0. 4263 in 2015. The ecosystem health in studied region was mostly at sub- or unhealthy level, and Huangshui Basin and the basins of Yellow River mainstream were at the lowest level. Among the sub-indices of ECC, the ecosystem health level corresponding to resources environmental carrying capacity was the highest. Human potential and ecological resilience were the two main factors affecting the ecosystem health of the studied region.

关 键 词：黄河流域青海片 生态承载力 生态系统健康 动态评价 

分 类 号：X826[环境科学与工程—环境工程]