川西亚高山森林林窗对凋落枝早期分解的影响

郭彩虹,杨万勤,吴福忠,徐振锋,岳楷,倪祥银,袁吉,杨帆,谭波

Effects of forest gap size on initial decomposition of twig litter in the subalpine forest of western Sichuan, China

Cai-Hong GUO,Wan-Qin YANG,Fu-Zhong WU,Zhen-Feng XU,Kai YUE,Xiang-Yin NI,Ji YUAN,Fan YANG,Bo TAN

表3 不同面积林窗和郁闭林下凋落枝分解特征分解系数、相关系数、半分解和95%分解时间

Table 3 Decomposition constant, adjusted correlation coefficient, and time of 50% and 95% decomposition of twig litter in different forest gaps and the closed canopy

林窗类型 Gap type 回归方程 Regression equation 分解系数k Decomposition constant k 调整决定系数 Adjusted coefficient of determination 半分解时间 Time of half decomposition (a) 95%分解时间 Time of 95% decomposition (a) 显著性 Significance FG1 y = 91.53e-0.127t 0.127 0.773 5.458 23.588 p < 0.001 FG2 y = 95.55e-0.131t 0.131 0.786 5.291 22.868 p < 0.001 FG3 y = 95.55e-0.120t 0.120 0.764 5.776 24.964 p < 0.001 CC y = 95.55e-0.135t 0.135 0.758 5.134 22.191 p < 0.001