The consumption of atmospheric methane by soil in a simulated future climate
A recently developed model for the consumption of atmospheric methane by soil (Curry, 2007) is used to investigate the global magnitude and distribution of methane uptake in a simulated future climate. In addition to solving the one-dimensional diffusion-reaction equation, the model includes a param...
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ftdoajarticles:oai:doaj.org/article:0c033968e56a47d696e4fdd40512d893 2023-05-15T18:02:04+02:00 The consumption of atmospheric methane by soil in a simulated future climate C. L. Curry 2009-11-01T00:00:00Z https://doaj.org/article/0c033968e56a47d696e4fdd40512d893 EN eng Copernicus Publications http://www.biogeosciences.net/6/2355/2009/bg-6-2355-2009.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 https://doaj.org/article/0c033968e56a47d696e4fdd40512d893 Biogeosciences, Vol 6, Iss 11, Pp 2355-2367 (2009) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2009 ftdoajarticles 2022-12-31T11:57:18Z A recently developed model for the consumption of atmospheric methane by soil (Curry, 2007) is used to investigate the global magnitude and distribution of methane uptake in a simulated future climate. In addition to solving the one-dimensional diffusion-reaction equation, the model includes a parameterization of biological CH 4 oxidation that is sensitive to soil temperature and moisture content, along with specified reduction factors for land cultivation and wetland fractional coverage. Under the SRES emission scenario A1B, the model projects an 8% increase in the global annual mean CH 4 soil sink by 2100, over and above the 15% increase expected from increased CH 4 concentration alone. While the largest absolute increases occur in cool temperate and subtropical forest ecosystems, the largest relative increases in consumption (>40%) are seen in the boreal forest, tundra and polar desert environments of the high northern latitudes. Methane uptake at mid- to high northern latitudes increases year-round in 2100, with a 68% increase over present-day values in June. This increase is primarily due to enhanced soil diffusivity resulting from lower soil moisture produced by increased evaporation and reduced snow cover. At lower latitudes, uptake is enhanced mainly by elevated soil temperatures and/or reduced soil moisture stress, with the dominant influence determined by the local climate. Article in Journal/Newspaper polar desert Tundra Directory of Open Access Journals: DOAJ Articles |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 C. L. Curry The consumption of atmospheric methane by soil in a simulated future climate |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
A recently developed model for the consumption of atmospheric methane by soil (Curry, 2007) is used to investigate the global magnitude and distribution of methane uptake in a simulated future climate. In addition to solving the one-dimensional diffusion-reaction equation, the model includes a parameterization of biological CH 4 oxidation that is sensitive to soil temperature and moisture content, along with specified reduction factors for land cultivation and wetland fractional coverage. Under the SRES emission scenario A1B, the model projects an 8% increase in the global annual mean CH 4 soil sink by 2100, over and above the 15% increase expected from increased CH 4 concentration alone. While the largest absolute increases occur in cool temperate and subtropical forest ecosystems, the largest relative increases in consumption (>40%) are seen in the boreal forest, tundra and polar desert environments of the high northern latitudes. Methane uptake at mid- to high northern latitudes increases year-round in 2100, with a 68% increase over present-day values in June. This increase is primarily due to enhanced soil diffusivity resulting from lower soil moisture produced by increased evaporation and reduced snow cover. At lower latitudes, uptake is enhanced mainly by elevated soil temperatures and/or reduced soil moisture stress, with the dominant influence determined by the local climate. |
format |
Article in Journal/Newspaper |
author |
C. L. Curry |
author_facet |
C. L. Curry |
author_sort |
C. L. Curry |
title |
The consumption of atmospheric methane by soil in a simulated future climate |
title_short |
The consumption of atmospheric methane by soil in a simulated future climate |
title_full |
The consumption of atmospheric methane by soil in a simulated future climate |
title_fullStr |
The consumption of atmospheric methane by soil in a simulated future climate |
title_full_unstemmed |
The consumption of atmospheric methane by soil in a simulated future climate |
title_sort |
consumption of atmospheric methane by soil in a simulated future climate |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doaj.org/article/0c033968e56a47d696e4fdd40512d893 |
genre |
polar desert Tundra |
genre_facet |
polar desert Tundra |
op_source |
Biogeosciences, Vol 6, Iss 11, Pp 2355-2367 (2009) |
op_relation |
http://www.biogeosciences.net/6/2355/2009/bg-6-2355-2009.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 https://doaj.org/article/0c033968e56a47d696e4fdd40512d893 |
_version_ |
1766171746846638080 |