基于改进湿周法的贾鲁河河道内生态需水量计算  

Study of ecological instream flow requirement of Jialu River based on improved wetted perimeter method

作　　者：于鲁冀[1,2] 陈慧敏[1] 王莉[1,2] 吕晓燕[2] 范鹏宇[2] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450001 [2]郑州大学环境政策规划评价研究中心,河南郑州450002

出　　处：《水利水电科技进展》2016年第3期5-9,94,共6页Advances in Science and Technology of Water Resources

基　　金："十二五"国家水体污染控制与治理重大专项(2012ZX07204-004-001)

摘　　要：针对贾鲁河实际情况,选取中牟和扶沟水文站作为控制断面,利用斜率法、曲率法和多目标评价法3种改进湿周法计算分析贾鲁河不同频率年河道内生态需水量。结果表明,采用多目标评价法(r=2)计算结果最大,曲率法最小,中牟断面用多目标评价法(r=2)计算生态需水量较为合理,扶沟断面用斜率法计算生态需水量较为合理。According to the actual conditions along the Jialu River, we selected the Zhongmou and Fugou Hydrological Stations as the control sections, and calculated the ecological instream flow requirements of the Jialu River in different frequency years using three kinds of improved wetted perimeter methods, including the slope method, the curvature method, and the multi-objective evaluation method. The results show that the calculated ecological flow requirement is greatest when using the multi-objective evaluation method (r=2), and least when using the curvature method. It is more reasonable to use the multi-objective evaluation method (r=2) to calculate the ecological flow requirement of the Zhongmou section, and to use the slope method to calculate the ecological water requirement of the Fugou section.

关 键 词：生态需水量 湿周法 斜率法 曲率法 多目标评价法 贾鲁河 

分 类 号：TV213.4[水利工程—水文学及水资源]