亚热带不同树种凋落叶分解对氮添加的响应

陈思路,蔡劲松,林成芳,宋豪威,杨玉盛

Response of leaf litter decomposition of different tree species to nitrogen addition in a subtropical forest

Si-Lu CHEN,Jin-Song CAI,Cheng-Fang LIN,Hao-Wei SONG,Yu-Sheng YANG

表6 亚热带森林对照样地凋落物质量损失速率与累积酶活性和初始化学性质的Pearson相关分析(n = 12, 使用平均值)

Table 6 Pearson correlation coefficients (r) for litter mass loss rate versus cumulative enzyme activity and initial chemistry in the control plots after 2-year decomposition in a subtropical forest (n = 12, mean value used)

酶活性 Enzyme activity 初始性质 Initial chemistry AP βG CBH NAG PEO PHO C N 可萃取物 Extractive (%) 纤维素 Cellulose (%) 木质素 Lignin (%) -1.98 0.661* 0.511 0.372 0.297 0.533 -0.817** -0.530 0.871** -0.724** -0.848**