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4 细菌优势门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 4 Correlation analysis among the bacterial dominant phylum , the decomposition rate of fine roots , and the initial properties of litter

优势门 Dominant phylum C (%) N (%) P (%) 木质素 Lignin (%) C:N N:P 分解速率 Decomposition rate 变形菌门 Proteobacteria -0.64 0.57 0.77* -0.63 -0.69* 0.52 0.71* 放线菌门 Actinobacteria 0.61 -0.32 -0.69* 0.48 0.50 -0.25 -0.62 拟杆菌门 Bacteroidetes 0.60 0.09 0.09 0.09 0.43 0.03 -0.36 酸杆菌门 Acidobacteria -0.46 -0.48 -0.57 0.35 -0.16 -0.42 0.03 分解速率 Decomposition rate -0.76** 0.74** 0.67* -0.90** -0.82** 0.74** 1.00