Among them, under the first two mutation points, the UF line fluctuates up and down, and when it is close to 1985, the UF line is greater than 0, that is, the runoff shows an increasing trend.
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Response of future hydropower generation of cascade reservoirs to climate change in alpine regions.
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The sentences
Then, after 1985, the UF line gradually decreased and passed the 95% significance test in 2000, this means that the annual runoff of TNH and XC hydrological stations shows a decreasing trend.