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三门峡水电站是黄河梯级开发的第一期工程,具有巨大的综合利用作用:首先可将0.1%频率的洪水调节到下游安全洩量6000秒公方;第二可灌溉下游河南、河北、山东4000万亩农田(第一期);第三可发出巨量的电力供给郑州、洛陽、太原、西安等工业城市日益增长的动力需要;第四可以改善下游航运。从现有35年水文系列分析,三门峡埧址多年平均年水量为422亿公方,水量的逐年和
Sanmenxia Hydropower Station is the first phase of the development of the Yellow River cascade, with a huge comprehensive utilization of the role: First of all, 0.1% of the floods can be adjusted to the downstream safety relief 6000 seconds public; second irrigation downstream Henan, Hebei, Shandong 40 million Mu of farmland (Phase I); the third can send a huge amount of electricity to the growing power needs of industrial cities such as Zhengzhou, Luoyang, Taiyuan and Xi’an; and the fourth can improve downstream shipping. From the existing 35-year hydrological series analysis, Sanmenxia site for many years the average annual water amount of 42.2 billion square meters, the amount of water a year and