水资源与水工程学报Issue(5)：22-27,6.DOI:10.11705/j.issn.1672-643X.2014.05.005
基于流量分级的生态流量过程线确定方法--以东江水库为例
Deterministic method of ecological flow process line based on flow classification:a case study in Dongjiang reservoir
黄速艇 1陈森林 1艾学山 1董前进1
作者信息
- 1. 武汉大学水资源与水电工程科学国家重点实验室，湖北武汉430072
- 折叠
摘要
Abstract
The ecological flow of river channel is an important part of eco-hydrology research.In view of the special ecological function of different grades of flow,the paper divided the river discharge into ex-treme low flow, low flow, high flow pulse and flood a new method was put forward by means of IHA indi-cators and EFC method.In this method.Based on which ,it draw the ecological flow hydrograph .The method was applied to Dong Jiang reservoir, and gave the e-flow hydrograph of dry year, mean year and wet year.The results indicated that①the high flow pulses occur from March to September, but there are difference in different typical years, the more the yearly runoff, the larger the high flow magnitude be-come.The time of the first high flow occurs.②The extreme low flow mainly occur in January, February, November and December.the larger the discharge ,the shorter the time of duration of discharge, but the magnitude of extreme low flow changes little.③In the same typical year, the high flow has the process of first increase and then decrease.The maximum is in May or June;the duration time of extreme low flow reaches the maximum in January or February.关键词
水文改变指标/生态流量/环境流量组成/流量过程线/东江水库Key words
hydrology variation index/ecological flow/environment flow component/discharge hydro-graph/dongjiang reservoir分类
建筑与水利引用本文复制引用
黄速艇,陈森林,艾学山,董前进..基于流量分级的生态流量过程线确定方法--以东江水库为例[J].水资源与水工程学报,2014,(5):22-27,6.
