阔叶红松林不同演替阶段凋落物产量及其稳定性的影响因素

孙浩哲, 王襄平, 张树斌, 吴鹏, 杨蕾

Abiotic and biotic modulators of litterfall production and its temporal stability during the succession of broad-leaf and Korean pine mixed forest

SUN Hao-Zhe, WANG Xiang-Ping, ZHANG Shu-Bin, WU Peng, YANG Lei

表1 黑龙江胜山保护区阔叶红松林各演替阶段样地的林分特征

Table 1 Stand characteristics for plots of different succession stages of broadleaf Korean pine forest in the Shengshan Nature Reserve, Heilongjiang Province of China

演替阶段 Succession stage 平均树高 Mean tree height (m) 平均胸径 Mean DBH (cm) 最大树高 Hmax (m) 最大胸径 DBHmax (cm) 林分密度 Stem density (tree·hm-2) 林冠空隙度 Gap fraction (%) 胸高断面积 TBA (m2·hm-2) 早期 Early stage 13.3 13.2 22.6 29.8 853 32.1 14.8 中期 Middle stage 8.9 11.1 24.3 43.8 1 577 13.1 30.9 中晚期 Mid-late stage 12.0 11.9 28.9 51.8 1 723 15.9 21.4 晚期 Late stage 13.1 16.6 28.6 67.7 1 180 6.6 42.4