邻域树种多样性对杉木叶片氮磷生态化学计量比的影响

冉松松, 余再鹏, 万晓华, 傅彦榕, 邹秉章, 王思荣, 黄志群

Effects of neighborhood tree species diversity on foliar nitrogen-phosphorus stoichiometry of Cunninghamia lanceolata

RAN Song-Song, YU Zai-Peng, WAN Xiao-Hua, FU Yan-Rong, ZOU Bing-Zhang, WANG Si-Rong, HUANG Zhi-Qun

表2 不同树种丰富度样地树木生长情况(平均值±标准误)

Table 2 Tree growth of plots with different tree species richness (mean ± SE)

编号 No. 树种丰富度 Species richness 重复数 Replicate 目标树高 Focal tree height (m) 目标树地径 Focal tree ground diameter (mm) 平均树高 Mean tree heigh (m) 平均地径 Mean ground diameter (mm) A 1 4 1.4 ± 0.2 25 ± 4.2 1.1 ± 0.1 18 ± 1.6 B 4 3 1.4 ± 0.3 27 ± 6.0 1.2 ± 0.2 19 ± 1.1 C 4 3 1.5 ± 0.3 26 ± 5.4 1.2 ± 0.2 19 ± 1.6 D 4 3 1.4 ± 0.2 23 ± 3.2 1.4 ± 0.2 21 ± 1.4 E 8 3 1.6 ± 0.3 28 ± 5.3 1.3 ± 0.2 19 ± 1.6 F 8 3 1.4 ± 0.4 27 ± 8.1 1.2 ± 0.1 19 ± 0.9 G 8 3 1.6 ± 0.3 29 ± 6.0 1.2 ± 0.2 19 ± 1.6 H 16 4 1.5 ± 0.2 26 ± 4.6 1.2 ± 0.1 18 ± 1.5 I 16 4 1.3 ± 0.2 26 ± 3.8 1.1 ± 0.1 17 ± 1.4 J 32 4 1.4 ± 0.2 25 ± 4.9 1.2 ± 0.1 18 ± 1.4