Land use and water management have considerable impacts on regional climates. This paper proposes that in humid regions with low wind patterns the construction of hydropower storage reservoirs contributes to the increases in the probability of precipitation in the regional climate. This observation has been tested with a methodology that calculates the cumulative influence of reservoir construction in the basins surrounding with a proposed index named Cumulative Impact of Existing Reservoirs, and compares this index with the historical flow of the rivers. It was found that the construction of reservoirs in Brazil had a considerable impact on its river flows.

中文翻译：

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水电对湿润区域气候河流流量的影响

土地利用和水资源管理对区域气候有相当大的影响。本文提出，在低风模式的潮湿地区，建设水电蓄水库有助于增加区域气候中降水的概率。该观察结果已通过一种方法进行测试，该方法计算周围流域内水库建设的累积影响，并使用名为现有水库累积影响的建议指数，并将该指数与河流的历史流量进行比较。研究发现，巴西的水库建设对其河流流量产生了相当大的影响。