Estimation of Ecological Water Requirements Based on Habitat Response to Water Level in Huanghe River Delta,China

作     者：CUI Baoshan HUA Yanyan WANG Chongfang LIAO Xiaolin TAN Xuejie TAO Wendong 

作者机构：State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China Department of Environmental Resources and Forest Engineering College of Environmental Science and Forestry State University of New York NY 13210 USA 

出 版 物：《Chinese Geographical Science》 (中国地理科学（英文版）)

年 卷 期：2010年第20卷第4期

页      面：318-329页

核心收录：

学科分类：07[理学] 08[工学] 081501[工学-水文学及水资源] 09[农学] 0903[农学-农业资源与环境] 0815[工学-水利工程] 0713[理学-生态学] 

基　　金：Under the auspices of Major State Basic Research Development Program of China (No. 2006CB403303) National Natural Science Foundation of China (No. U0833002,40571149) Scientific Research Foundation of Beijing Normal University (No. 2009SD-24) 

主　　题：water level-habitat response functional integrity ecological water requirements wetland Huanghe River Delta 

摘      要：In recent years,wetland ecological water requirements (EWRs) have been estimated by using hydrological and functional approaches,but those approaches have not yet been integrated for a whole *** paper presents a new method for calculating wetland EWRs,which is based on the response of habitats to water level,and determines water level threshold through the functional integrity of *** show that in the Huanghe (Yellow) River Delta water levels between 5.0 m and 5.5 m are required to maintain the functional integrity of the wetland at a value higher than *** of the dominant plants in the delta,Phragmites australis,tolerates water level fluctuation of about ± 0.25 m without the change in wetland functional *** minimum,optimum and maximum EWRs for the Huanghe River Delta are 9.42×106 m3,15.56×106 m3 and 24.12×106 m3 with water levels of 5.0 m,5.2 m and 5.5 m,corresponding to functional integrity indices of 0.70,0.84 and 0.72,respectively.A wetland restoration program has been performed,which aims to meet these EWRs in attempt to recover from losses of up to 98% in the delta s former wetland area.