Figure 3.

The seasonal variation in carbon: nitrogen (C:N), C:phosphorus (P), and N:P ratios in leaf litterfall and fresh leaves. Different upper and lower case letters indicate significant differences at p < .05 among tree species in growing and nongrowing seasons, respectively. Bars with * indicate significant differences at p < .05 between growing and nongrowing seasons for the same tree species. Data on fresh leaves of CA in the nongrowing season were omitted because there were no fresh leaves from deciduous species in this season. CL, PM, CA, CG, and LG denote Cunninghamia lanceolata, Pinus massoniana, Choerospondias axillaris, Cyclobalanopsis glauca, and Lithocarpus glaber, respectively