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首页> 外文期刊>The Science of the Total Environment >Variation analysis of streamflow and ecological flow for the twin rivers of the Miyun Reservoir Basin in northern China from 1963 to 2011
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Variation analysis of streamflow and ecological flow for the twin rivers of the Miyun Reservoir Basin in northern China from 1963 to 2011

机译：1963-2011年中国北方密云水库流域双河水流量和生态流量变化分析

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摘要

In this paper, the Mann-Kendall test and F-test were combined to analyze the annual and seasonal streamflow variations and aberrance points for the twin rivers from 1963 to 2011. The Tennant method was subsequently used to evaluate the ecological flow assurance and deficit Finally, the Double Mass Curve method was applied to identifying the human activities affecting the streamflow variations. The results were as follows: (1) Three similar stages of the streamflow variations were found for the twin rivers: fluctuations before 1980, the tiny downward trends from the 1980s to the 1990s, and the notably downward trends in the 2000s. (2) The seasonal streamflow also decreased continuously and dramatically, especially in summer, by 80.9% for the Chaohe River and 86.0% for the Baihe River. (3) During the spawning season, 833% and 73.1% of streamflow was not at the appropriate level for the Chaohe and Baihe Rivers, respectively, which indicated that the ecological environment was not optimal for the reproduction and breeding of aquatic organisms. While in other periods, the ecological flow assurance was better than that in spawning seasons for the Chaohe and Baihe Rivers, respectively. This indicated that the streamflow regimes of the twin rivers were not always optimal and conducive to the development of the aquatic ecosystem. (4) The streamflow variations of the twin rivers were influenced by increasingly intensive human activities such as changes of land use and land cover, and excessive exploitation and utilization of water resources. These influences were cumulative and showed a gradually increasing tendency. This research is helpful for understanding the streamflow regime and for forecasting of the regional extreme climate, such as drought and floods, and can provide a basis for decision making and formulating adaptive ecological security countermeasures in response to climate changes and human activities.
机译：本文采用Mann-Kendall检验和F检验对1963年至2011年双河的年度和季节性流量变化及异常点进行了分析。随后使用Tennant方法评估了生态流量的保证和不足。 ，使用双重质量曲线法来识别影响河流流量变化的人类活动。结果如下：（1）在双河中发现了三个相似的流量变化阶段：1980年之前的波动，1980年代至1990年代的微小下降趋势，以及2000年代的明显下降趋势。 （2）季节性流量也连续且急剧减少，特别是在夏季，潮河和白河分别减少了80.9％和86.0％。 （3）在产卵季节，潮河和白河的水流量分别达833％和73.1％，这表明生态环境对于水生生物的繁殖和繁殖不是最佳的。而在其他时期，潮河和白河的生态流量保证分别优于产卵期。这表明双子河的水流状态并不总是最佳的，并且不利于水生生态系统的发展。 （4）由于土地利用和土地覆盖的变化以及对水资源的过度开发等人类活动的日益密集，双河的流量变化受到影响。这些影响是累积的，并显示出逐渐增加的趋势。这项研究有助于理解河流的流态和预测干旱和洪水等区域极端气候，并为决策和制定适应气候变化和人类活动的适应性生态安全对策提供基础。

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  • 来源
    《The Science of the Total Environment》 |2015年第1期|739-749|共11页
  • 作者

    Xuan Wang; Guangling Hao; Zhifeng Yang; Peiyu Liang; Yanpeng Cai; Chunhui Li; Lian Sun; Jie Zhu;

  • 作者单位

    State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China ,Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China ,School of Environment, Beijing Normal University, Beijing 100875, China;

    State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China ,Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China;

    State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China ,Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China;

    Zhejiang Institute of Hydraulics & Estuary, Hangzhou 310020, China;

    State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China;

    Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China;

    Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China;

    State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China ,Key Laboratory for Water and Sediment Sciences of Ministry of Education, Beijing Normal University, Beijing 100875, China;

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  • 正文语种 eng
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  • 关键词

    Streamflow variations; Ecological flow deficit; Mann-Kendall test; Double Mass Curve; Twin rivers in northern China;

    机译：流量变化;生态流量不足;曼肯德尔检验;双质量曲线;中国北方的双河;

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