编号 zgly0000344920

文献类型 期刊论文

文献题名 Ecological service assessment of human-dominated freshwater ecosystem with a case study in Yangzhou Prefecture, China

作者 YEYa-ping  WANGRu-song  RENJing-ming  HUDan  YUANShao-jun  WANGMin 

作者单位 ResearchCenterforEco-EnvironmentalSciences 

母体文献 Journal of Environmental Sciences;环境科学学报: 英文版 

年卷期 2004,16(5)

页码 755-761

年份 2004 

分类号 X171  Q149 

关键词 生态学  生态系统  扬州市  环境?；?ensp; 水体 

文摘内容 Freshwater ecosystems provide a host of services to humanity. These services are now rapidly being lost, not least because of the inability of making the impacts measurable. To overcome this obstacle, assessment frameworks for freshwater ecosystem services are needed. A simple water equivalent framework to assess the ecological services provided by freshwater ecosystems was developed in this study. It translated the occupation of freshwater ecosystem services into biologically freshwater volumes and then compares this consumption to the freshwater throughput, that is, the ecological capacity available in this region. In this way, we use the example of Yangzhou Prefecture, to account the main categories of human occupation of water ecosystem services. The result showed that there is a huge gap between the consumption and the supply of freshwater ecosystem services. This must encourage local government to make land-use and water management decisions both economically rational and environmentally sound。