Fig. 2From: Precipitation mediates the temporal dynamics of net primary productivity and precipitation use efficiency in China’s northern and southern forestsSpatial patterns and dynamics of net primary productivity (NPP) and precipitation use efficiency (PUE) across China’s northern and southern forests from 2000 to 2010. Graphs a and b represent spatial distributions of average NPP and PUE, respectively, while graphs c and d represent variations in the temporal change of NPP and PUE, respectivelyBack to article page