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- Brachmann, Cole,1993Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences (author)
CH4 uptake along a successional gradient in temperate alpine soils
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2020-01-07
- Springer Science and Business Media LLC,2020
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- LIBRIS-ID:oai:gup.ub.gu.se/289287
- https://gup.ub.gu.se/publication/289287URI
- https://doi.org/10.1007/s10533-019-00630-0DOI
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- Language:English
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- The effects of climate change appear to be amplified in mountains compared with lowland areas, with rapid changes in plant community composition, soil properties, and increased substrate for biological development following retreat of glaciers. Associated soil gaseous fluxes in alpine ecosystems contribute to the global balance of greenhouse gases, but methane and carbon dioxide soil fluxes and their controls are not well known. We used a dynamic closed-chamber method to measure methane and carbon dioxide fluxes along a successional gradient during the peak growing season in the North Selkirk Mountains, British Columbia, Canada. Soil physico-chemical properties, vegetation cover, and topographic variables were quantified to determine mechanisms influencing these fluxes. Mean methane uptake ranged from - 155 lg CH4-C m- 2 h-1 in well vegetated sites to zero in recently deglaciated terrain. Soil total carbon (TC) and water content were the primary drivers of methane uptake. Sites with TC greater than 4% and moisture below 0.22 water fraction by volume (w.f.v) corresponded to the strongest methane sinks. Increased vegetation cover and relatively drier soil conditions, anticipated with future climate change, suggest that methane uptake may increase in these alpine ecosystems.
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap Geokemi hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Geochemistry hsv//eng
- NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
- LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Markvetenskap hsv//swe
- AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Soil Science hsv//eng
- NATURVETENSKAP Biologi Ekologi hsv//swe
- NATURAL SCIENCES Biological Sciences Ecology hsv//eng
- Columbia mountains
- Methane
- Soil fluxes
- Alpine
- Deglaciated terrain
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- Hernandez-Ramirez, G (author)
- Hik, D (author)
- Göteborgs universitetInstitutionen för geovetenskaper (creator_code:org_t)
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- In:Biogeochemistry: Springer Science and Business Media LLC147, s. 109-1230168-25631573-515X
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