摘要
采用面积定额法和水面蒸发法对海河流域25个城市的生态用水量进行了核算,比较了不同类型城市的生态用水率,并对城市生态用水量与城市人口、建成区面积和国内生产总值等国民经济指标之间的关系进行了分析。结果表明:海河流域城市生态用水总量为10.83×108m3/a,其中城市绿地用水4.32×108m3/a,城市水面用水6.51×108m3/a。城市人口、城市建成区面积和国内生产总值与城市生态用水呈显著正相关关系。城市生态用水在水资源中配额的确定,特别是大城市生态用水率的提高,是今后城市生态用水研究的重点。
In this article, 25 cities Ecological water demands (EWD) were assessed with the method of area ration and water system evaporation. The EWD ratios among different cities were compared with some analyses of the relationship of population, built-up area, GDP and EWD. The results showed that the total EWD of urban was 10.83×108 m3/a in Haihe basin, in which greenbelt water usage was 4.32×108 m3/a and urban water system usage was 6.51×108 m3/a. EWD is significantly positive correlation to population, bu...
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
北大核心
2003年第S1期18-20,共3页
Urban Environment & Urban Ecology
基金
国家自然科学基金(70171044)
水利部水利与国民经济协调发展研究项目(04-03-01)
关键词
海河流域
城市生态用水
核算
Haihe basin
ecological water demand of urbans
assessment
