泰山4种优势造林树种细根分解对细菌群落结构的影响

路颖,李坤,倪瑞强,梁强,李传荣,张彩虹

Effects of fine root decomposition on bacterial community structure of four dominated tree species in Mount Taishan, China

LU Ying,LI Kun,NI Rui-Qiang,LIANG Qiang,LI Chuan-Rong,ZHANG Cai-Hong

表5 细菌优势纲相对丰度与细根分解速率、凋落物初始化学性质之间的相关分析

Table 5 Correlation analysis among the decomposition rate of fine roots and bacterial dominant class and the initial properties of litter

优势纲 Dominant class C (%) N (%) P (%) 木质素 Lignin (%) C:N N:P 分解速率 Decomposition rate α-变形菌纲 Alphaproteobacteria -0.33 0.79** 0.56 -0.71* -0.73* 0.84** 0.63* β-变形菌纲 Betaproteobacteria -0.42 -0.18 0.09 -0.00 -0.11 -0.21 0.19 γ-变形菌纲 Gammaproteobacteria -0.08 0.49 0.47 -0.37 -0.25 0.43 0.24 不明放线菌纲unidentified-Actinobacteria 0.84** -0.25 -0.53 0.37 0.73* -0.25 -0.61 鞘脂杆菌纲 Sphingobacteriia 0.20 0.40 0.49 -0.23 -0.00 0.30 0.05