DOI: 10.1111/gcb.12327
论文题名: Responses of CO2, N2O and CH4 fluxes between atmosphere and forest soil to changes in multiple environmental conditions
作者: Yan J. ; Zhang W. ; Wang K. ; Qin F. ; Wang W. ; Dai H. ; Li P.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 1 起始页码: 300
结束页码: 312
语种: 英语
英文关键词: Greenhouse gas
; Nitrogen deposition
; Soil moisture
; Soil monolith
; Soil temperature
; Subtropical forest
Scopus关键词: atmospheric deposition
; carbon dioxide
; carbon emission
; environmental conditions
; environmental factor
; forest soil
; global change
; greenhouse gas
; methane
; nitrogen cycle
; nitrous oxide
; soil emission
; soil moisture
; soil temperature
; subtropical region
; China
; Dinghushan
; Guangdong
; carbon
; carbon dioxide
; methane
; nitrogen
; nitrous oxide
; rain
; air pollutant
; article
; chemistry
; China
; environmental monitoring
; greenhouse gas
; nitrogen deposition
; season
; soil
; soil moisture
; soil monolith
; soil temperature
; subtropical forest
; temperature
; tree
; greenhouse gas
; nitrogen deposition
; soil moisture
; soil monolith
; soil temperature
; subtropical forest
; Air Pollutants
; Carbon
; Carbon Dioxide
; China
; Environmental Monitoring
; Methane
; Nitrogen
; Nitrous Oxide
; Rain
; Seasons
; Soil
; Temperature
; Trees
英文摘要: To investigate the effects of multiple environmental conditions on greenhouse gas (CO2, N2O, CH4) fluxes, we transferred three soil monoliths from Masson pine forest (PF) or coniferous and broadleaved mixed forest (MF) at Jigongshan to corresponding forest type at Dinghushan. Greenhouse gas fluxes at the in situ (Jigongshan), transported and ambient (Dinghushan) soil monoliths were measured using static chambers. When the transported soil monoliths experienced the external environmental factors (temperature, precipitation and nitrogen deposition) at Dinghushan, its annual soil CO2 emissions were 54% in PF and 60% in MF higher than those from the respective in situ treatment. Annual soil N2O emissions were 45% in PF and 44% in MF higher than those from the respective in situ treatment. There were no significant differences in annual soil CO2 or N2O emissions between the transported and ambient treatments. However, annual CH4 uptake by the transported soil monoliths in PF or MF was not significantly different from that at the respective in situ treatment, and was significantly lower than that at the respective ambient treatment. Therefore, external environmental factors were the major drivers of soil CO2 and N2O emissions, while soil was the dominant controller of soil CH4 uptake. We further tested the results by developing simple empirical models using the observed fluxes of CO2 and N2O from the in situ treatment and found that the empirical models can explain about 90% for CO2 and 40% for N2O of the observed variations at the transported treatment. Results from this study suggest that the different responses of soil CO2, N2O, CH4 fluxes to changes in multiple environmental conditions need to be considered in global change study. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62218
Appears in Collections: 影响、适应和脆弱性
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作者单位: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Tianhe District, Guangzhou 510650, China; College of Environment and Planning, Henan University, Kaifeng 475004, China; Jigongshan Natural Reserve, Xinyang 464000, China
Recommended Citation:
Yan J.,Zhang W.,Wang K.,et al. Responses of CO2, N2O and CH4 fluxes between atmosphere and forest soil to changes in multiple environmental conditions[J]. Global Change Biology,2014-01-01,20(1)