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Analysis of the climate change in the Dagu river basin in recent 50 years

机译：近50年来DAGU河流域气候变化分析

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Due to the influence of global warming and environmental change, the meteorological and hydrological elements of the Dagu River Basin have also undergone a series of response changes, which have led to the change of the spatial and temporal changes of water resources. The natural ecological environment and the economic development of human society have been seriously affected. In this study, hydrological and meteorological factors such as temperature, precipitation, evaporation and runoff were selected as the object of study. Spearman order correlation test, linear regression method and sliding average method were used to analyze the trend of meteorological hydrological elements in Dagu River Basin in Recent 50 Years. The results show that the trend of climate warming in Dagu River Basin is consistent with that of national climate change in recent 50 years. At 0.05 confidence level, the annual mean temperature fluctuates with time, and the annual precipitation is increasing with time. The trend of declining trend is not significant. The annual evaporation decreases with time, and the descending trend is significant. The surface runoff decreases with time.
机译：由于全球变暖和环境变化的影响，大沽河流域的气象和水文元素也经历了一系列反应变化，这导致了水资源的空间和时间变化的变化。自然生态环境和人类社会的经济发展受到严重影响。在本研究中，选择水文和气象因素，如温度，沉淀，蒸发和径流作为研究对象。 Spearman订单相关试验，线性回归法和滑动平均法用于分析近50年来达苏河流域气象水文元素的趋势。结果表明，大沽河流域气候变暖趋势与近50年来的民族气候变化符合。在0.05置信水平，年平均温度随时间波动，年降水量随着时间的推移而增加。趋势下降的趋势并不重要。年蒸发随着时间的推移而降低，下降趋势是显着的。表面径流随时间减少。

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