Ecological Base Flow Characteristics of Typical Rivers on the North Slope of Kunlun Mountains under Climate Change

Under climate change, river ecological base flow becomes particularly critical for the health and stability of inland ecosystems in arid regions. Taking three typical seasonal rivers, including Kriya River, Niya Qarqan all on northern slope Kunlun Mountains, as research objects, meteorological data from 1958 to 2019 hydrological 1978 2014 were selected analyze characteristics under change. The results show that past 60 years, temperature River basins has warmed at rates 0.235 °C•(10a)−1, 0.223 0.177 respectively, while precipitation increased 0.88 mm•(10a)−1, 3.90 7.92 mm•(10a)−1. Tennant method was determined best algorithm rivers interannual maximum values occurred 2010, with increasing by 5.098 m3·s−1, 2.416 11.343 m3·s−1 regional average 6.286 m3·s−1. within year is July, minimum value January, a high proportion flood season. monthly strong correlation precipitation, strongest basin coefficients 0.876 0.917. We propose guarantee objectives during dry season, clarify season key point guarantee. are 0.974 0.154 2.167 respectively. Our can provide scientific reference management regulation water resources protection Mountains.