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首页> 外文会议>International Yellow River forum on ensuring water right of the river's demand and healthy river basin maintenance;Ministry of Water Resources;China Yellow River Foundation >Recent Changes of Runoff and Their Causes in Upper Yangtze River Basin
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Recent Changes of Runoff and Their Causes in Upper Yangtze River Basin

机译：长江上游流域径流的最新变化及其成因

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The Yangtze River from the source regions to the Yichang station is called as the upper Yangtze River.Firstly,the runoff changes at sixteen main control stations in the upper reaches of Yangtze River Basin were analyzed.The results show that except in the Jinsha River Basin,the runoff in the other basin decreased more or less.Among them,the runoff in the Minjiang River,Hengjiang River,Tuojiang River and Jialing River decreased significantly.The runoff at the Cuntan station increased before 1968,but decreased significantly after 1993.A large scale distributed monthly water balance model was developed and applied in the upper Yangtze River.The model was used to evaluate the impacts of climate change and human activities on the changes of runoff generation in the upper Yangtze River Basin and to explore the causes of runoff change.The runoff at the Cuntan station of Yangtze River decreased significantly since 1993 and climate change was the main factor that contributed 71.43％ of the runoff change.Meanwhile,it was needed to pay attention that the runoff in the Minjiang River and Jialing River Basin decreased obviously and the contribution of human activities to runoff change reaches to about 50％.It was related to the interne human activities in those areas.Human activities will most probably play a dominant role in influencing the discharge of the Minjiang River and Jialing River Basin.
机译：从源区到宜昌站的长江称为长江上游。首先，对长江流域上游16个主控站的径流变化进行了分析。结果表明，除金沙江流域外，其他流域的径流或多或少地减少。其中，the江，横江，jiang江和嘉陵江的径流显着减少。寸滩站的径流在1968年之前增加，但在1993年后显着减少。开发并在长江上游地区应用大型分布式月度水平衡模型，该模型用于评估气候变化和人类活动对长江上游地区径流产生变化的影响，并探讨径流成因自1993年以来，长江寸滩站的径流明显减少，气候变化是造成径流的主要因素。同时，需要注意的是，the江和嘉陵江流域的径流量明显减少，人类活动对径流变化的贡献达到50％左右。这与这些地区的人类活动有关人类活动很可能在影响the江和嘉陵江流域的流量中起主导作用。

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