中国水利水电科学研究院学报2017，Vol.15Issue(6)：478-484,7.DOI:10.13244/j.cnki.jiwhr.2017.06.011
基于水生态区的黑河流域水生态健康评价研究
Assessment of water ecological health based on aquatic ecoregions in the Heihe River Basin
摘要
Abstract
This study presents an analysis of health status for aquatic ecoregions in the Heihe River Basin,a typical example of inland river basin in arid areas of northwest China.The basin was divided into eight aquatic ecoregions according to their aquatic ecological function regionalization at watershed scale.To evaluate water basin ecological health condition,a 13-indicator system was established based on "pressure-state-response"(PSR) model.The results shows that upstream area presents relatively good condition of ecological health,followed by middle reaches and downstream reaches,while middle and lower reaches presents extremely poor health condition.The reasons include that the upstream region receives the lowest external pollution and artificial disturbance,while middle area is influenced by relatively large population densities and intense agricultural activities.The middle and lower reaches are located in the desert region without rivers and reservoirs.Although the downstream region has lower population and fewer external contamination,the relatively insufficient influent and fragile water ecosystem habitat conditions lead to a poorer hydrobiology habitat security in this area.关键词
黑河流域/水生态区/水生态健康评价/PSR模型Key words
Heihe River Basin/aquatic ecoregion/water ecological health assessment/PSR model分类
资源环境引用本文复制引用
杜飞,王世岩,刘畅,王亮..基于水生态区的黑河流域水生态健康评价研究[J].中国水利水电科学研究院学报,2017,15(6):478-484,7.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07501-002-05) （2012ZX07501-002-05）
