短期增温对紫花针茅草原土壤微生物群落的影响

王军,王冠钦,李飞,彭云峰,杨贵彪,郁建春,周国英,杨元合

Effects of short-term experimental warming on soil microbes in a typical alpine steppe

Jun WANG,Guan-Qin WANG,Fei LI,Yun-Feng PENG,Gui-Biao YANG,Jian-Chun YU,Guo-Ying ZHOU,Yuan-He YANG

表2 基于双因素方差分析得到的短期增温(W)、取样时间(T)及其交互作用(W × T)对微生物群落的影响(F值)

Table 2 Results (F values) of two-way ANOVA on the effects of short-term warming (W), sampling date (T), and their interactions (W × T) on microbial community

微生物群落 Microbial community T W W × T 细菌 Bacteria 159.90** 0.11 4.30* 革兰氏阳性菌 Gram-positive bacteria 173.66** 0.93 2.56 革兰氏阴性菌 Gram-negative bacteria 67.70** 0.00 2.50 丛枝菌根真菌 Arbuscular mycorrhizal fungi 7.20* 8.49* 0.03 真菌 Fungi 2.12 0.18 2.13 放线菌 Actinomycetes 24.28** 5.37* 0.02 真菌细菌比 Fungi/Bacteria 123.85** 0.15 0.01 G+/G- Gram-positive bacteria/Gram-negative bacteria 0.27 0.45 0.28 饱和与不饱和脂肪酸比 Saturated PLFAs / Monosaturated PLFAs 7.13* 2.24 0.86 磷脂脂肪酸总量 Total phospholipid fatty acids 157.39** 1.67 1.08