摘要
文中采用湿周法估算巴音河最小生态需水量。选用巴音河德令哈水文站作为控制断面,用对数函数和幂函数关系对湿周~流量关系进行拟合。通过建立河道断面湿周与流量的关系曲线,依据该曲线确定变化点的位置,估算最小需水量的推荐值。分别用斜率为1法和曲率最大法对巴音河的德令哈断面的最小生态需水量进行定量估算。
The wetted perimeter method is adopted to estimate the minimum ecological water demand of Bayinhe river. Selecting the Delingha hydrological station of Bayinhe River as a control section, the wetted perimeter and flow relation is fitted by using the logarithm function and power function relation. Based on the established relationship curve between the wetted perimeter of river section and flow, by the position of the change point could be determined, then the recommended value of the minimum ecological water demand are estimated. The minimum ecological water demand of the Delingha section of Bayinhe river are quantitatively estimated by using the slope equaling 1 method and the maximal curvature method.
出处
《东北水利水电》
2016年第7期33-34,65,共3页
Water Resources & Hydropower of Northeast China
关键词
湿周法
巴音河
最小生态需水量
斜率为1法
曲率最大法
wetted perimeter method
Bayinhe river
minimum ecological water demand
slope equaling 1 method
maximal curvature method
