黄河上游河道生态需水量研究

Study on Ecological Water Demand of Channels in the Upper Yellow River

建立了河道生态需水量计算模型,把黄河上游分为上、中、下3段,根据黄河沿、玛曲、唐乃亥、安宁渡、青铜峡和头道拐6个水文站1960~1990年系列资料,计算的25%、50%、70%、95%4个水文频率年生态需水量分别为235.811 8亿、230.482 0亿、193.823 8亿m3和166.056 3亿m3,河道内平均年生态需水量为径流量的13%左右。

It builds up channel ecological water demand calculating model.The calculated annual ecological water demand of 4 hydrologic frequencies of 25%,50%,70% and 95% is 23.581 18 billion m3,23.048 20 billion m3,19.382 38 billion m3 and 16.605 63 billion m3 respectively and the mean annual ecological water demand of channel is about 13% of runoff based on 1960 ~ 1990 series data of 6 hydrometric stations of Huangheyan,Maqu,Tangnaihe,Anningdu,Qingtongxia and Toudaoguai by the method of dividing the upper Yellow Riv...