摘要
植被是城市生态系统中重要的组成部分,研究植被的生态需水、以及由生态缺水导致的服务功能变化具有重要意义。采用面积定额法,估算出北京市植被的最小生态需水量为37.4亿m3;采用情景分析方法,分析了不同植被类型、人均生活用水增加、人口增加情景下生态缺水量及其导致的生态服务功能变化。污水、中水回用、植被蓄水与雨水收集是缓解生态缺水的有效措施。
Vegetation is one of the important parts of urban ecosystem.Researching about ecological water demand,shortage and its change of ecosystem service is of very significance.Using Area-Ration approach,the ecological water minimum demand of vegetation in Beijing is calculated about 37.4×108 m3.Using scenario analysis method,the change of vegetation ecosystem service under different vegetation type,increase of living water requirement per person and population increase is analyzed and estimated.Reusing of pollut...
出处
《城市环境与城市生态》
CAS
CSCD
2009年第2期1-3,共3页
Urban Environment & Urban Ecology
基金
2008年度国家林业局重点科研项目(2008-03)
关键词
植被
生态需水
生态缺水
生态服务功能
北京
vegetation
ecological water demand
ecological water shortage
ecosystem service
Beijing
