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Search: hsv:(NATURVETENSKAP) hsv:(Geovetenskap och miljövetenskap) > Methane emissions f...

Methane emissions from macrophyte beach wrack on Baltic seashores

Björk, Mats, 1960- (author)
Stockholms universitet,Institutionen för ekologi, miljö och botanik,Department of Ecology, Environment and Plant Sciences, Stockholm University, 106 91, Stockholm, Sweden,Stockholm Univ, Dept Ecol Environm & Plant Sci, S-10691 Stockholm, Sweden.
Rosenqvist, Gunilla, 1958- (author)
Uppsala universitet,Naturresurser och hållbar utveckling,Blått centrum Gotland
Gröndahl, Fredrik (author)
KTH,Vatten- och miljöteknik,KTH, Royale Inst Technol, KTH Teknikringen 10B, Stockholm, Sweden.;Dept Sustainable Dev Environm Sci & Engn, S-10044 Stockholm, Sweden.
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Bonaglia, Stefano, 1983 (author)
Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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 (creator_code:org_t)
2022-08-27
2023
English.
In: Ambio. - : Springer Nature. - 0044-7447 .- 1654-7209. ; 52:1, s. 171-181
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Beach wrack of marine macrophytes is a natural component of many beaches. To test if such wrack emits the potent greenhouse gas methane, field measurements were made at different seasons on beach wrack depositions of different ages, exposure, and distance from the water. Methane emissions varied greatly, from 0 to 176 mg CH4-C m−2 day−1, with a clear positive correlation between emission and temperature. Dry wrack had lower emissions than wet. Using temperature data from 2016 to 2020, seasonal changes in fluxes were calculated for a natural wrack accumulation area. Such calculated average emissions were close to zero during winter, but peaked in summer, with very high emissions when daily temperatures exceeded 20 °C. We conclude that waterlogged beach wrack significantly contributes to greenhouse gas emissions and that emissions might drastically increase with increasing global temperatures. When beach wrack is collected into heaps away from the water, the emissions are however close to zero.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
LANTBRUKSVETENSKAPER  -- Bioteknologi med applikationer på växter och djur -- Växtbioteknologi (hsv//swe)
AGRICULTURAL SCIENCES  -- Agricultural Biotechnology -- Plant Biotechnology (hsv//eng)
NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)

Keyword

Baltic Sea
Beach cast
Climate change
Greenhouse gas
Marine macrophytes
Methane

Publication and Content Type

ref (subject category)
art (subject category)

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