自然和人工生境被子植物枝木质部结构与功能差异

方菁, 叶琳峰, 陈森, 陆世通, 潘天天, 谢江波, 李彦, 王忠媛

Differences in anatomical structure and hydraulic function of xylem in branches of angiosperms in field and garden habitats

FANG Jing, YE Lin-Feng, CHEN Sen, LU Shi-Tong, PAN Tian-Tian, XIE Jiang-Bo, LI Yan, WANG Zhong-Yuan

表2 自然和人工生境3种被子植物样树的基本特性(平均值±标准误)

Table 2 Basic characteristics of the sampled trees for the three species in field and garden habitats (mean ± SE)

树种 Species 生境 Habitat n 树高 Tree height (m) 胸径 DBH (cm) 树龄 Tree age (a) 冠幅 Crown (m) 三角槭 Acer buergerianum 自然生境 Field habitat 19 9.44 ± 0.37 10.26 ± 0.38 10-15 2.70 ± 0.12 人工生境 Garden habitat 20 10.75 ± 0.27 11.31 ± 0.24 10-15 3.04 ± 0.07 青冈 Cyclobalanopsis glauca 自然生境 Field habitat 18 12.41 ± 0.38 14.65 ± 0.54 15-20 6.45 ± 0.14 人工生境 Garden habitat 21 12.57 ± 0.30 15.43 ± 0.28 15-20 6.86 ± 0.03 女贞 Ligustrum lucidum 自然生境 Field habitat 20 6.47 ± 0.24 12.10 ± 0.38 10-15 3.94 ± 0.21 人工生境 Garden habitat 18 7.33 ± 0.11 13.62 ± 0.27 10-15 4.51 ± 0.16