256352.fig.007a
(a)
256352.fig.007b
(b)
256352.fig.007c
(c)
256352.fig.007d
(d)
Figure 7: Spatiotemporal precipitation concentration index (%) distribution in the chinese loess plateau. (a) Precipitation concentration index, 1960s, (b) precipitation concentration index, 1970s, (c) precipitation concentration index, 1980s, and (d) precipitation concentration index, 1990s.