短期增温对紫花针茅草原土壤微生物群落的影响
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王军,王冠钦,李飞,彭云峰,杨贵彪,郁建春,周国英,杨元合
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Effects of short-term experimental warming on soil microbes in a typical alpine steppe
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Jun WANG,Guan-Qin WANG,Fei LI,Yun-Feng PENG,Gui-Biao YANG,Jian-Chun YU,Guo-Ying ZHOU,Yuan-He YANG
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| 表1 短期增温对土壤理化性质及地上植被的影响 |
| Table 1 Short-term warming effects on soil physicochemical properties and standing vegetation |
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土壤因子
Soil factors | 2015年 | 2016年 | | 对照 Control | 增温 Warming | 对照 Control | 增温 Warming | | 土壤温度 Soil temperature (℃) | 12.80 ± 0.30 | 14.40 ± 0.20** | 13.90 ± 0.20 | 15.40 ± 0.30** | | 土壤含水量(体积分数) Soil moisture (volume fraction) | 13.20 ± 1.80 | 9.80 ± 1.10** | 15.60 ± 1.80 | 13.30 ± 1.20* | | 有机碳含量 Soil organic carbon content (%) | 3.20 ± 0.20 | 3.20 ± 0.20 | 3.30 ± 0.10 | 3.32 ± 0.10 | | 总碳含量 Total carbon content (%) | 4.50 ± 0.20 | 4.40 ± 0.20 | 4.20 ± 0.10 | 4.50 ± 0.10 | | 全氮含量 Total nitrogen content (%) | 0.38 ± 0.02 | 0.38 ± 0.02 | 0.38 ± 0.01 | 0.38 ± 0.01 | | 碳氮比 | 8.50 ± 0.20 | 8.60 ± 0.20 | 8.70 ± 0.20 | 8.80 ± 0.20 | | 归一化植被指数 Normalized difference vegetation index | 0.27 ± 0.01 | 0.26 ± 0.01 | 0.18 ± 0.02 | 0.19 ± 0.02 |
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