水利水电科技进展2012，Vol.32Issue(5)：6-10,5.DOI:10.3880/j.issn.1006-7647.2012.05.002
基于湿周法的河道最小生态需水量多目标评价模型
Multi-objective evaluation model for minimum environmental flows based on wetted perimeter method
摘要
Abstract
A multi-objective evaluation model is established to estimate the minimum environmental flows(MEF) based on the relationship between wetted perimeter and discharge. Regarding the maximum wetted perimeter and the minimum river discharge as objectives for habitat protection and water resources utilization respectively, the model is solved by means of the ideal point melhod, and MEF in the downstream of Zengjiang River is calculated by the multi-objective evaluation model and compared with that calculated by the slope method and the curvature method. The results show that the MEF threshold at Qilinzui station in the downstream of Zengjiang River ranges from 20. 8 to 26. 3 mVs, and the corresponding average velocity is from 0. 42 to 0. 44 m/s. The results calculated by the multi-objective evaluation model have stronger applicability for determination of MEF than those by the traditional wetted perimeter method, and they can better reflect the balanced development between the ecological and economic water uses.关键词
湿周法/多目标评价模型/理想点法/尺度系数/最小生态需水量/增江Key words
wetted perimeter/ multi-objective evaluation model/ ideal point method/ scale coefficient/ minimum environmental flow/ Zengjiang River分类
资源环境引用本文复制引用
彭涛,陈晓宏,王高旭,李英海..基于湿周法的河道最小生态需水量多目标评价模型[J].水利水电科技进展,2012,32(5):6-10,5.基金项目
南京水利科学研究院水文水资源与水利工程科学国家重点实验室开放基金(2011491711) （2011491711）
国家自然科学基金(50839005) （50839005）
湖北省教育厅自然科学基金(Q20121301) （Q20121301）
三峡大学人才科研启动基金(KJ2010B029) （KJ2010B029）
