水科学进展2009，Vol.20Issue(4)：560-565,6.
滦河下游河道生态需水量
Ecological water requirements in the lower reaches of Luanhe Basin
摘要
Abstract
Based on the methods of the ecological water requirements (EWRs) at home and abroad, this paper takes the area from Panjiakou reservoir to Luanhe estuary of Luanhe Basin as the typical area to determine the water allocations of the river ecological restoration in reservoirs' downstream. EWRs are calculated with the month-by-month frequency method and eco-hydraulics method. The methods can describe EWRs according to seasons and grades, meanwhile emphasize the relationship between hydrology and ecology. Through the analysis of the ecological, hydrological and hydraulic data from the studied area from 1956 to 2000, the results indicate that: (1) The month-by-month frequency method and eco-hydraulics method are both reasonable in calculating EWRs in the Lower reaches of Luanhe Basin; (2) The minimum, medium and ideal level of annual EWRs are 4.29×108,8.93×108 and 16.29×108m3, about 10.18%, 21.21% and 38.68% of the natural river discharge respectively; And (3) the ratio of the monthly ecological flows should be 33.5% in the flood period (August) and 11.5% in the biological propagation period in spring (April-June).关键词
生态需水量/逐月频率法/生态水力学法/滦河下游/河道Key words
ecological water requirements (EWRs)/ month-by-month frequency method/ eco-hydraulics method/ Luanhe downstream/ waterway分类
资源环境引用本文复制引用
王伟,杨晓华,王银堂..滦河下游河道生态需水量[J].水科学进展,2009,20(4):560-565,6.基金项目
"十一五"国家科技支撑计划资助项目(2006BAB14B02) （2006BAB14B02）
国家重点基础研究发展计划(973)资助项目(2003CB415204)The study is financially supported by the National Key Technologies R&D Program of China during the llth Five-year Plan Period(No.2006BABI4B02) and the National Basics Research Program od China(No.2003CB415204). （973）
