黄河龙羊峡至青铜峡河段已建水电站经济效益分析

Economic analysis of the existing hydropower stations on Longyangxia- Qingtongxia reach of the Yellow river

黄河龙羊峡～青铜峡段已建龙羊峡、刘家峡、盐锅峡、八盘峡、青铜峡５电站，自投产后显示了巨大的社会经济效益：至１９９３年底，５电站累计发电量２１５ＴＷ·ｈ，总产值达１４０亿元；电站调峰共节约启动费８．４亿元；防洪效益显著，不但提高了刘、盐、八３电站的防洪标准，且削减了在建李家峡、大峡电站的施工导流流量，节约投资；灌溉保证率有了较大的提高；另外，在防凌、环保、渔业和旅游业等方面也发挥了重要作用。

On Long-Qing reach of the Yellow river, there are five completed hydropower stations:Longyangxia,Liujiaxia, Yanguoxia, Bapenxia and Qingtongxia stations. Since their construction and operation, the five stations have proved to be great social-economic beneficial. As of 1993, the total power production was 215 TWh, valuing 14 billion Yuan, and another 0. 84 billion Yuan of starting generators was saved by regulating peak loads. Meantime, these stations have strensthened flood control, enhanced irrigation possibility, and played an important role in ice prevention, environment protection, fishing and tourism.For example, during the construction of Lijiaxia and Daxia hydropower sautions, the five stations reduced the construction diversion flow discharge. This reduced the investment required by the constuction diversion.