人民治理黄河70年黄河流域防凌效益分析

发布时间：2018-01-08 09:01

  本文关键词：人民治理黄河70年黄河流域防凌效益分析　出处：《人民黄河》2016年12期 　论文类型：期刊论文

  更多相关文章： 凌汛损失 防凌效益 黄河流域

【摘要】：黄河流域地形和地貌相差悬殊,径流量变幅较大,极易在弯曲、狭窄段卡冰结坝,壅高水位,造成凌汛灾害。人民治理黄河70年来,黄河治理开发保护与管理取得了巨大的成就,黄河凌汛治理与保护效果显著,并取得了巨大的经济效益。在采用人民治理黄河50 a防凌效益研究成果的基础上,通过水利工程建设前后洪水泥沙的对比,并考虑下泄流量变化,对黄河下游近20 a防凌效益进行分析。通过防凌直接效益和间接效益的估算,计算出黄河流域近20 a防凌效益,并估算人民治理黄河70年黄河防凌效益为1 608.58亿元。
[Abstract]:The topography and geomorphology of the Yellow River basin are very different, and the runoff varies greatly. It is easy to bend, narrow section of ice and dam, and to build up high water level, resulting in ice flood disaster. People have managed the Yellow River for 70 years. Great achievements have been made in the development, protection and management of the Yellow River, and the effect of the control and protection of the Yellow River ice flood is remarkable. On the basis of adopting the research results of people to control the Yellow River for 50 years, the flood and sediment were compared before and after the construction of water conservancy project, and the change of discharge was considered. Through the estimation of the direct and indirect benefit of the prevention of the ice, the anti-ice benefit of the Yellow River basin for the past 20 years has been calculated. And estimated that people control the Yellow River for 70 years, the benefit of the Yellow River ice prevention is one hundred and sixty billion eight hundred and fifty-eight million yuan.
【作者单位】： 黄河勘测规划设计有限公司;
【分类号】：TV875
【正文快照】： 黄河流域东西跨越23个经度,南北覆盖10个纬度,地形和地貌相差悬殊,径流量变幅也较大。黄河上游段和下游段冬季气温上暖下寒,封河自下而上,冰层下厚上薄。到了第二年春季,封河的冰层融化,由于气温南高北底,因此开河自上而下。当上游开河融冰时,下游往往还处于封冻状态,上游大量，

本文编号：1396439