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Factors controlling large scale variations in methane emissions from wetlands

Christensen, Torben LU ; Ekberg, Anna LU ; Ström, Lena LU ; Mastepanov, Mikhail LU ; Panikov, N; Mats, O; Svensson, BH; Nykanen, H; Martikainen, PJ and Oskarsson, H (2003) In Geophysical Research Letters 30(7). p.1414-1414
Abstract
[1] Global wetlands are, at estimate ranging 115-237 Tg CH4/yr, the largest single atmospheric source of the greenhouse gas methane (CH4). We present a dataset on CH4 flux rates totaling 12 measurement years at sites from Greenland, Iceland, Scandinavia and Siberia. We find that temperature and microbial substrate availability (expressed as the organic acid concentration in peat water) combined explain almost 100% of the variations in mean annual CH4 emissions. The temperature sensitivity of the CH4 emissions shown suggests a feedback mechanism on climate change that could validate incorporation in further developments of global circulation models.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Geophysical Research Letters
volume
30
issue
7
pages
1414 - 1414
publisher
American Geophysical Union
external identifiers
  • wos:000182348600005
  • scopus:0141539170
ISSN
1944-8007
DOI
10.1029/2002GL016848
language
English
LU publication?
yes
id
e4f90205-6fc9-40db-9609-52923a11690a (old id 313074)
date added to LUP
2007-08-28 09:43:25
date last changed
2017-09-10 04:36:29
@article{e4f90205-6fc9-40db-9609-52923a11690a,
  abstract     = {[1] Global wetlands are, at estimate ranging 115-237 Tg CH4/yr, the largest single atmospheric source of the greenhouse gas methane (CH4). We present a dataset on CH4 flux rates totaling 12 measurement years at sites from Greenland, Iceland, Scandinavia and Siberia. We find that temperature and microbial substrate availability (expressed as the organic acid concentration in peat water) combined explain almost 100% of the variations in mean annual CH4 emissions. The temperature sensitivity of the CH4 emissions shown suggests a feedback mechanism on climate change that could validate incorporation in further developments of global circulation models.},
  author       = {Christensen, Torben and Ekberg, Anna and Ström, Lena and Mastepanov, Mikhail and Panikov, N and Mats, O and Svensson, BH and Nykanen, H and Martikainen, PJ and Oskarsson, H},
  issn         = {1944-8007},
  language     = {eng},
  number       = {7},
  pages        = {1414--1414},
  publisher    = {American Geophysical Union},
  series       = {Geophysical Research Letters},
  title        = {Factors controlling large scale variations in methane emissions from wetlands},
  url          = {http://dx.doi.org/10.1029/2002GL016848},
  volume       = {30},
  year         = {2003},
}