Factors controlling large scale variations in methane emissions from wetlands

Torben Christensen; Anna Ekberg; Lena Ström; Mikhail Mastepanov; N Panikov; O Mats; BH Svensson; H Nykanen; PJ Martikainen; H Oskarsson

doi:10.1029/2002GL016848

Factors controlling large scale variations in methane emissions from wetlands

Torben Christensen, Anna Ekberg, Lena Ström, Mikhail Mastepanov, N Panikov, O Mats, BH Svensson, H Nykanen, PJ Martikainen, H Oskarsson

Dept of Physical Geography and Ecosystem Science

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	1414
Journal	Geophysical Research Letters
Volume	30
Issue number	7
DOIs	https://doi.org/10.1029/2002GL016848
Publication status	Published - 2003

Subject classification (UKÄ)

Physical Geography

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1029/2002GL016848

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title = "Factors controlling large scale variations in methane emissions from wetlands",

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.",

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year = "2003",

doi = "10.1029/2002GL016848",

language = "English",

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pages = "1414",

journal = "Geophysical Research Letters",

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T1 - Factors controlling large scale variations in methane emissions from wetlands

AU - Christensen, Torben

AU - Ekberg, Anna

AU - Ström, Lena

AU - Mastepanov, Mikhail

AU - Panikov, N

AU - Mats, O

AU - Svensson, BH

AU - Nykanen, H

AU - Martikainen, PJ

AU - Oskarsson, H

PY - 2003

Y1 - 2003

N2 - [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.

AB - [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.

U2 - 10.1029/2002GL016848

DO - 10.1029/2002GL016848

M3 - Article

SN - 1944-8007

VL - 30

SP - 1414

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 7

ER -

Factors controlling large scale variations in methane emissions from wetlands

Abstract

Subject classification (UKÄ)

UN SDGs

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