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一、黄河北干流开发在经济建设中的作用黄河北干流系指自内蒙托克托(河口镇)以下到陕西潼关这一河段。长约868公里。其中托克托至禹门口长735公里;禹门口至潼关为133公里(亦称小北干流)。托禹段河道的河床比降约为1‰,年径流总量,到禹门口为341.8亿立米。原黄河梯级开发规划中北干流有万家寨、碛口和龙门三大水电站之外,尚有天桥、军渡、三交和禹门四口处中型水电站。七
I. The Role of Yellow River North Mainstream Development in Economic Development The Yellow River North Mainstream refers to the river from the Inner Mongolia Autonomous Region (Hekou Town) to Tongguan, Shaanxi Province. About 868 kilometers long. Among them Tuoketuo to Yumen port length 735 kilometers; Yumenkou to Tongguan 133 kilometers (also known as Xiaobei main stream). Tuyu section of the river bed than the reduction of about 1 ‰, the annual runoff to Yu door 34,180,000,000 cubic meters. The original Yellow River cascade development plan in the North Mainstream Wanjiazhai, Qikou and Longmen three major hydropower stations, there are flyover, military crossing, three cross and Yumen four at medium-sized hydropower station. Seven