摘要
Abstract
In order to maintain the stability of river basin ecosystem , to ensure the security of river ecological water requirement , it is very important to select the appropriate ecological water requirement .Taking Guanyinyan Hydropower Station for an example , according to the relationship between river cross section curves and elevation and flow , hydraulic parameter has been calculated , and then the wetted perimeter method , Tennant method and R2-CROSS method have been used to calculate the minimum ecological flow of Guanyinyan hydropower .Through research , it is shown that for large river the minimum ecological flow which calculated by Tennant method and R2-CROSS method are close and relatively reasonable .关键词
水电站/环保/最小生态流量Key words
hydropower station/environmental protection/minimum ecological flow分类
资源环境
