平原河网地区河流生态水量表征方式及核算研究——以通榆河为例  

Characterization and Calculation of Ecological Water Quantity of Rivers in Plain River Network Areas——A Case Study of Tongyu River

作　　者：刘洪财 丁晓雯 蒋咏[2] 陈庆伟[3] LIU Hongcai;DING Xiaowen;JIANG Yong;CHEN Qingwei(College of Environmental Science and Engineering,North China Electric Power University,Beijing 102206,China;Jiangsu Water Resources Service Center,Nanjing 210029,China;Water Resources Management Center,Ministry of Water Resources,Beijing 100053,China)

机构地区：[1]华北电力大学环境科学与工程学院,北京102206 [2]江苏省水资源服务中心,江苏南京210029 [3]水利部水资源管理中心,北京100053

出　　处：《人民珠江》2022年第8期19-26,共8页Pearl River

基　　金：国家重点研发项目(2016YFA0601502、2017YFC0404503、2018YFE0196000);111项目(B14008)。

摘　　要：生态水量是保障河流生态系统稳定与健康的关键,而在平原河网地区由于水流往复流动,用传统的生态流量来表征河流的生态水量适用性较差,故对平原河网地区河流生态水量的表征方式的研究具有十分重要的现实意义。通过对平原河网地区河流特征分析,提出利用生态水位来表征平原河网地区河流的生态水量,并以通榆河为例,用湿周法、生物空间法对其阜宁(通)断面的生态水位进行核算。最终得到通榆河阜宁(通)断面的最低生态水位为0.20 m,与相关指导性文件的要求对比,表明用生态水位来表征平原河网地区河流生态水量合理,计算结果可靠。研究成果可以为平原河网地区河流生态水量的确定和管理提供新的方法和思路。Ecological water quantity is the key to ensuring the stability and health of a river ecosystem.However,the traditional ecological flow has poor applicability when it is used to characterize the ecological water quantity of a river in a plain river network area because of the reciprocating flow of water.Therefore,studying methods of characterizing the ecological water quantity of rivers in a plain river network area has important practical significance.After analyzing the characteristics of rivers in a plain river network area,this paper proposes using ecological water level to characterize the ecological water quantity of the rivers in the plain river network area.Taking the Tongyu River as an example,it calculates the ecological water level of the Funing(Tong)section by the wetted perimeter method and the biological space method.The obtained minimum ecological water level of the Funing(Tong)section of the Tongyu River is 0.20 m.The comparison with the requirements of the relevant guiding documents shows that characterizing the ecological water quantity of rivers in a plain river network area by ecological water level is reasonable and that the calculation results are reliable.The research results can provide a new method and idea for the determination and management of the ecological water quantity of rivers in a plain river network area.

关 键 词：平原河网地区 生态水量 生态流量 生态水位 表征方式 

分 类 号：TV213.2[水利工程—水文学及水资源]