广西大石围天坑群不同植物群落的特征

于燕妹, 黄林娟, 薛跃规

Characteristics of different plant communities in the Dashiwei Tiankeng group, Guangxi, China

YU Yan-Mei, HUANG Lin-Juan, XUE Yue-Gui

表5 大石围天坑群各群落内部结构

Table 5 Internal structure of each community in Dashiwei Tiankeng group plots

样方号 Plot 林分密度 Stand density (individual·m-2) 平均树高 Average tree height (m) 平均胸径 Mean DBH (cm) 幼苗数量 No. of seedlings A1 0.44 3.24 18.59 32 A2 0.49 3.34 12.23 35 A3 0.47 2.31 2.53 45 A4 0.35 2.94 2.72 41 A5 0.59 3.45 1.51 34 A6 0.54 3.37 2.87 38 A7 0.30 5.01 2.73 17 A8 0.35 4.78 2.68 18 B1 0.31 7.63 21.53 25 B2 0.32 6.39 19.16 35 B3 0.28 4.70 2.88 39 B4 0.29 8.25 2.98 40 B5 0.69 3.38 1.49 28 B6 0.14 7.53 7.30 29 B7 0.43 4.16 2.09 25 B8 0.30 5.01 2.73 34 C1 0.28 4.51 25.31 31 C2 0.24 3.73 9.03 37 C3 0.24 5.43 24.21 13 C4 0.36 3.97 27.37 26 C5 0.16 6.32 2.87 13 C6 0.11 7.78 5.05 13 D1 0.42 3.24 1.00 59 D2 0.45 2.97 0.92 58 D3 0.66 2.47 0.83 62