Abstract

In order to understand the variation of hydrological regime for major rivers in China under climate change since 1950, the series of annual runoff for those rivers were analyzed by using several methods, including M-K method, accumulation curve method, F & T test, and anomaly analysis method. The results of this study showed that the annual runoff for only a part of those rivers took on a significant trend under climate change. Additionally, the occurring frequency of both extremely low-flow years and continuous low-flow years for most of those rivers increased after 1980.

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