Figure 2
(a) Leaf area change at the five sites under drought conditions. (b) Specific leaf area (SLA) decreased; (c) net CO2 assimilation rate (An) increased significantly (y = −0.8271x + 25.5981, R = −0.75), and (d) leaf biomass increased rapidly (y = −0.0879x + 1.3964, R = −0.95) (P < 0.0001) in Caragana korshinskii leaves at the five experimental sites as the upper soil water content decreased.
