Figure 5

The annual spatio-temporal distribution of total precipitation in China. The map was generated by the software ArcGIS 10.1. (a) mean of annual total precipitation (1961–2015). (b) gradient of annual total precipitation(slope) (1961–2015). (c) precipitation region with significant deviation (p < 0.1) of annual total precipitation(1961–2015). (d) Mann–Kendall trend analysis and simple linear regression of annual total precipitation(1961–2015). (e) precipitation region with significant deviation (p-value < 0.1) of total precipitation in spring. (f) precipitation region with significant deviation (p-value < 0.1) of total precipitation in summer. (g) precipitation region with significant deviation (p-value < 0.1) of total precipitation in autumn. (h) precipitation region with significant deviation (p-value < 0.1) of total precipitation in winter.