DOI: 10.1002/2013GL058510
论文题名: Energy input is primary controller of methane bubbling in subarctic lakes
作者: Wik M. ; Thornton B.F. ; Bastviken D. ; Macintyre S. ; Varner R.K. ; Crill P.M.
刊名: Geophysical Research Letters
ISSN: 0094-10469
EISSN: 1944-10200
出版年: 2014
卷: 41, 期: 2 起始页码: 555
结束页码: 560
语种: 英语
英文关键词: ebullition
; energy flux
; methane
; subarctic lakes
Scopus关键词: Bubble formation
; Heat flux
; Methane
; Vapors
; Climate feedbacks
; ebullition
; Energy fluxes
; Freshwater systems
; Gas productions
; Incoming energy
; Surface sediments
; Transport modes
; Lakes
; carbon emission
; climate feedback
; energy flux
; heat flux
; ice cover
; lake ecosystem
; landscape
; methane
; sampling
; shallow water
; spatiotemporal analysis
; subarctic region
; trace gas
英文摘要: Emission of methane (CH4) from surface waters is often dominated by ebullition (bubbling), a transport mode with high-spatiotemporal variability. Based on new and extensive CH4 ebullition data, we demonstrate striking correlations (r2 between 0.92 and 0.997) when comparing seasonal bubble CH4 flux from three shallow subarctic lakes to four readily measurable proxies of incoming energy flux and daily flux magnitudes to surface sediment temperature (r2 between 0.86 and 0.94). Our results after continuous multiyear sampling suggest that CH 4 ebullition is a predictable process, and that heat flux into the lakes is the dominant driver of gas production and release. Future changes in the energy received by lakes and ponds due to shorter ice-covered seasons will predictably alter the ebullitive CH4 flux from freshwater systems across northern landscapes. This finding is critical for our understanding of the dynamics of radiatively important trace gas sources and associated climate feedback. ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84892877017&doi=10.1002%2f2013GL058510&partnerID=40&md5=073e98ad7fe79528c2835e3dcb0af930
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7733
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geological Sciences, Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
Recommended Citation:
Wik M.,Thornton B.F.,Bastviken D.,et al. Energy input is primary controller of methane bubbling in subarctic lakes[J]. Geophysical Research Letters,2014-01-01,41(2).