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1 泰山4个树种细根凋落物初始化学元素含量的差异(平均值±标准误差, n = 3)

Table 1 Differences in initial element contents of fine root litter (mean ± SE, n = 3)

树种 Species	C (%)	N (%)	P (%)	C:N	N:P	木质素 Lignin (%)
RP	48.77 ± 0.33^c	3.36 ± 0.002^a	0.53 ± 0.05^a	14.51 ± 0.09^d	6.36 ± 0.34^a	29.59 ± 0.47^c
QA	46.39 ± 0.17^d	1.08 ± 0.008^b	0.46 ± 0.01^a	43.02 ± 0.17^c	2.34 ± 0.05^b	33.78 ± 0.60^b
PD	54.65 ± 0.17^a	0.38 ± 0.009^d	0.39 ± 0.03^b	142.48 ± 3.72^a	1.00 ± 0.07^c	38.34 ± 0.30^a
PT	49.96 ± 0.13^b	0.85 ± 0.004^c	0.41 ± 0.03^b	59.04 ± 0.19^b	2.10 ± 0.14^b	37.78 ± 0.15^a