三峡变动回水区鱼类分布影响因素研究  

Analysis on Factors Affecting Fish Distribution in Fluctuating Backwater Area of Three Gorges Reservoir

作　　者：郎伟翔 Lang Weixiang(Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学,重庆400074

出　　处：《环境科学与管理》2025年第3期149-154,共6页Environmental Science and Management

摘　　要：文章以长江上游三峡库区变动回水区为研究范围,分析了影响鱼类分布:水质、河岸植被、水文变动、河道变化等四个因素;得出结论:在长江上游变动回水区河段中,影响鱼类分布的主要因素为水文变动、以及河道变化(主要是由水利工程建设,河道施工等人为活动引起的);由于河道变化、水文条件变化存在实地监测困难,分析方式复杂等问题,提出将地理信息系统(GIS)以及常用的水文模型结合,从而实现长江上游三峡库区变动回水区河段进行研究。This paper takes the fluctuating backwater area of the Three Gorges as the study area.Four factors affecting fish distribution are analyzed:water quality,riparian vegetation,hydrological changes and channel changes.It is concluded that the main factors affecting the distribution of fish in the river section of the Upper Yangtze River in the fluctuating backwater area of the Three Gorges are hydrological changes and channel changes(mainly caused by human activities such as construction of water conservancy projects,river construction,etc.)due to the difficulties in monitoring the changes in the river channel and hydrological conditions in the field and the complexity of analyzing the changes in the way of analysing the changes in the river channel and hydrological conditions.It is proposed to combine the geographic information system(GIS)and the commonly used hydrological models,so that river section in the fluctuating backwater area of the Three Gorges Reservoir on the upper Yangtze River for research.

关 键 词：三峡变动回水区 鱼类分布 地理信息系统 

分 类 号：X171[环境科学与工程—环境科学]