Figure 4

The temporal variation changes of precipitation during 2021~2100 under Scenario RCP2.6, Scenario RCP4.5, Scenario RCP8.5 (relative to those during 1961~2005) in the Tarim, (a) and Yangtze. (b) River Basin. (Note: Black dotted lines are the linear fitting for the annual precipitation under RCP2.6 during the 2021~2060 and 2061~2100, red lines are the linear fitting for the annual precipitation under RCP4.5 during the 2021~2060 and 2061~2100, blue lines are the linear fitting for the annual precipitation under RCP8.5 during the 2021~2060 and 2061~2100).