Zobrazeno 1 - 10
of 47
pro vyhledávání: '"M. Raivonen"'
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 2299-2324 (2024)
The processes responsible for methane (CH4) emissions from boreal wetlands are complex; hence, their model representation is complicated by a large number of parameters and parameter uncertainties. The arctic-enabled dynamic global vegetation model L
Externí odkaz:
https://doaj.org/article/4960fce475e24acf8ff31f1a0cd4341b
Publikováno v:
Biogeosciences, Vol 19, Pp 5041-5058 (2022)
Peatlands are globally significant carbon stocks and may become major sources of the greenhouse gases (GHGs) carbon dioxide and methane in a changing climate and under anthropogenic management pressure. Diffusion is the dominant gas transport mechani
Externí odkaz:
https://doaj.org/article/df8773ef12814a788f0467fdd6f961c5
Publikováno v:
Biogeosciences, Vol 19, Pp 1959-1977 (2022)
Peatlands are important natural sources of atmospheric methane (CH4) emissions. The production and emission of CH4 are strongly influenced by the diffusion of oxygen into the soil and of CH4 from the soil to the atmosphere, respectively. This diffusi
Externí odkaz:
https://doaj.org/article/3c21e8b7c6594001b5ef776305e56c5e
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 1199-1228 (2018)
Estimating methane (CH4) emissions from natural wetlands is complex, and the estimates contain large uncertainties. The models used for the task are typically heavily parameterized and the parameter values are not well known. In this study, we pe
Externí odkaz:
https://doaj.org/article/937348202dbf433bb0f75686f2e18747
Publikováno v:
Biogeosciences, Vol 15, Pp 937-951 (2018)
Emission via bubbling, i.e. ebullition, is one of the main methane (CH4) emission pathways from wetlands to the atmosphere. Direct measurement of gas bubble formation, growth and release in the peat–water matrix is challenging and in consequence
Externí odkaz:
https://doaj.org/article/a1d1d918b3cf427a8080331545d23aef
Autor:
M. Raivonen, S. Smolander, L. Backman, J. Susiluoto, T. Aalto, T. Markkanen, J. Mäkelä, J. Rinne, O. Peltola, M. Aurela, A. Lohila, M. Tomasic, X. Li, T. Larmola, S. Juutinen, E.-S. Tuittila, M. Heimann, S. Sevanto, T. Kleinen, V. Brovkin, T. Vesala
Publikováno v:
Geoscientific Model Development, Vol 10, Pp 4665-4691 (2017)
Wetlands are one of the most significant natural sources of methane (CH4) to the atmosphere. They emit CH4 because decomposition of soil organic matter in waterlogged anoxic conditions produces CH4, in addition to carbon dioxide (CO2). Production
Externí odkaz:
https://doaj.org/article/386bc12c408d4093ae93d0ac434014a8
Autor:
J. Joensuu, N. Altimir, H. Hakola, M. Rostás, M. Raivonen, M. Vestenius, H. Aaltonen, M. Riederer, J. Bäck
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 7813-7823 (2016)
Biogenic volatile organic compounds (BVOCs) produced by plants have a major role in atmospheric chemistry. The different physicochemical properties of BVOCs affect their transport within and out of the plant as well as their reactions along the wa
Externí odkaz:
https://doaj.org/article/0f0b588b5e234f72944c5a5e18d674a2
Publikováno v:
Biogeosciences, Vol 12, Iss 23, Pp 6853-6868 (2015)
Natural wetlands are among the most important sources of atmospheric methane and thus important for better understanding the long-term temporal variations in the atmospheric methane concentration. During the last 60 years, wetlands have experienced e
Externí odkaz:
https://doaj.org/article/93b131c8d4bd41d9aa53245363f3ddf0
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