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气候变化影响下高海拔水库流域水文特征研究
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摘要
高海拔水库流域具有独特的河道水文特征,在近年来气候变暖的情况下探究其水文特征的变化具有重要意义。以黄河上游龙羊峡库区为研究对象,基于观测资料分析和数学模型的应用,从库区气候变化对水库流域水文及水环境的影响展开研究。研究结果表明:受季风气候影响,龙羊峡水库的径流量具有明显的季节变化和年际变化的特征,龙羊峡河道型水库垂向水温结构呈现典型的季节性分层。气候变化影响了水库流域的水文特征,科学应对水库水环境的变化,合理运用人工调控手段进行调节,对保障水资源可持续利用具有重要意义。
The high-altitude reservoir basin has unique river hydrological characteristics,and it is important to explore the change of its hydrological characteristics in the case of climate warming in recent years.Based on the observation data analysis and the application of mathematical model,this paper studies the influence of climate change on the hydrology and water environment of reservoir basin from the Longyangxia reservoir area in the upper reaches of the.Yellow River.Results show that:Under the influence of monsoon,longyangxia reservoir runoff has obvious seasonal change and interannual variation characteristics,reservoirs vertical temperature structure is typical of seasonal stratification.Climate change affects the hydrological characteristics of reservoir basin,and it is of great significance to scientifically cope with the changes of reservoir water environment and rational use of artificial control measures to ensure the sustainable use of water
引文
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