马尾松人工林林窗大小对两种凋落叶难降解物质含量的影响

张艳, 张丹桔, 张健, 杨万勤, 邓长春, 李建平, 李勋, 唐仕姗, 张明锦

Effects of forest gap size on litter recalcitrant components of two tree species in Pinus massoniana plantations

ZHANG Yan,ZHANG Dan-Ju,ZHANG Jian,YANG Wan-Qin,DENG Chang-Chun,LI Jian-Ping,LI Xun,TANG Shi-Shan,ZHANG Ming-Jin

表2 不同分解阶段不同大小林窗凋落叶的平均温度(℃)

Table 2 The mean temperature in litterbags for different gap sizes at different time periods (℃)

林窗 Gap 2013-11-17 - 2013-12-17 2013-12-17 - 2014-02-17 2014-02-17 - 2014-05-17 2014-05-17 - 2014-08-17 GC GE GC GE GC GE GC GE CK 11.14 11.14 8.05 8.05 15.85 15.85 21.98 21.98 G1 12.46 12.15 9.04 8.58 17.76 17.97 23.95 22.75 G2 11.41 12.12 7.90 7.83 16.45 16.90 22.15 22.16 G3 11.68 12.40 8.61 8.89 17.77 16.39 23.71 21.32 G4 12.43 12.92 9.40 9.63 18.90 16.30 24.41 21.79 G5 11.92 11.14 8.64 7.90 16.77 15.87 22.75 21.12 G6 12.73 14.33 9.05 10.45 19.85 18.71 24.50 23.96 G7 13.04 14.07 9.34 10.47 16.85 16.19 22.07 22.12