观音岩水电站生态流量研究

该文以观音岩水电站为例,根据河道断面曲线和水位~流量关系计算出各水力参数计算,然后用湿周法,Tennant法和R2-CROSS法对观音岩水电最小生态流量进行了分析计算。研究表明对于大型河流用Tennant法和R2-CROSS法计算的最小生态流量较接近且相对合理。

Study on Ecologic Flow of Guanyinyan Hydropower Station

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.