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4 亚热带森林凋落叶分解质量损失、木质素、纤维素和氮释放的三因素重复测量方差分析

Table 4 Analysis (indicated by F values from ANOVA with three factors repeated measurements) of decomposition time, litter type, nitrogen addition and their interactions on litter mass and lignin, cellulose and N release in a subtropical forest

差异来源 Different source 质量损失率 Mass loss rate 木质素损失率 Lignin loss rate 纤维素损失率 Cellulose loss rate 氮释放率 N release rate T 356.428*** 18 920.622*** 8 803.023*** 1 266.179*** L 60.641* 1 798.360** 4 305.721*** 70.640** N 287.734** 2 916.781*** 5 176.453*** 421.188** T ′ L 4.114 1 605.655*** 1 016.727*** 14.430* T ′ N 2.681 124.624** 72.162* 15.670* L ′ N 8.713 582.266** 667.323*** 7.278 T ′ L ′ N 1.038 271.636** 407.487*** 2.044