Figure 2

The correlations between gm, gsc and leaf N content in Manchurian ash (a,b) and Mongolian oak (c,d). The coefficient of correlation (r) and significant correlation were at P < 0.05 and **P < 0.01.

The correlations between gm, gsc and leaf N content in Manchurian ash (a,b) and Mongolian oak (c,d). The coefficient of correlation (r) and significant correlation were at P < 0.05 and **P < 0.01.