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1 川西亚高山森林林窗基本性质

Table 1 Basic characteristics of forest gaps in the subalpine forest of western Sichuan

林窗类型 Gap type 林窗面积(m2) Area of gap 林窗形成木 Species of gap maker 林窗边界木 Species of gap border 林窗形成方式 Causes of gap FG1 255-290 岷江冷杉, 高度以20-30 m为主, 胸径以40-70 cm居多 Abies faxoniana with height and diameter at breast height ranging between 20 and 30 m and between 40 and 70 cm, respectively 岷江冷杉、红桦, 高度以20-30 m为主, 胸径以40-60 cm居多 Abies faxoniana and Betula albo-sinensis with height and diameter at breast height ranging between 20 and 30 m and between 40 and 60 cm, respectively 折干, 枯立 Breakage at trunk, standing death FG2 153-176 FG3 38-46