土壤含水量调控高寒草原生态系统N2O排放对增温的响应
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王冠钦,李飞,彭云峰,陈永亮,韩天丰,杨贵彪,刘莉,周国英,杨元合
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Responses of soil N2O emissions to experimental warming regulated by soil moisture in an alpine steppe
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Guan-Qin WANG,Fei LI,Yun-Feng PENG,Yong-Liang CHEN,Tian-Feng HAN,Gui-Biao YANG,Li LIU,Guo-Ying ZHOU,Yuan-He YANG
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| Table 1 Warming effects on soil physicochemical properties and microbial biomass (mean ± SE) |
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年份
Year | 处理
Treatment | 氨态氮
NH4+-N (mg·kg-1) | 硝态氮
NO3- -N (mg·kg-1) | 土壤无机氮
SIN (mg·kg-1) | 微生物生物量碳
MBC (mg·kg-1) | 微生物生物量氮
MBN (mg·kg-1) | | 2014 | 对照 Control | 1.8 ± 0.38 | 25.0 ± 1.6 | 26.8 ± 1.7 | 890.4 ± 23.7 | 91.6 ± 4.0 | | 增温 Warming | 3.0 ± 0.60* | 23.5 ± 1.3 | 26.5 ± 1.5 | 801.9 ± 40.8* | 68.2 ± 5.8** | | 2015 | 对照 Control | 2.2 ± 0.25 | 5.96 ± 0.4 | 8.20 ± 0.5 | 732.6 ± 11.3 | 42.2 ± 1.5 | | 增温 Warming | 3.0 ± 0.19* | 4.04 ± 0.4** | 7.02 ± 0.3* | 720.1 ± 18.6 | 41.3 ± 2.4 |
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