Annual chamber measurements of CH4 efflux and environmental variables from Lakkasuo peatland, Southern Finland
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2020
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| _version_ | 1867168202481467392 |
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| author | Riutta, Terhi Korrensalo, Aino Laine, Anna Maria Laine, Jukka Tuittila, Eeva-Stiina |
| author_facet | Riutta, Terhi Korrensalo, Aino Laine, Anna Maria Laine, Jukka Tuittila, Eeva-Stiina |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This study aimed at investigating the role of vegetation components, sedges, dwarf shrubs, and Sphagnum mosses, in methane fluxes of a boreal fen under natural and experimental water level drawdown conditions. We measured the fluxes during growing seasons 2001-2004 using the static chamber technique in a field experiment where the role of the ecosystem components was assessed via plant removal treatments. The first year was a calibration year after which the water level drawdown and vegetation removal treatments were applied. Under natural water level conditions, plant-mediated fluxes comprised 68 %-78% of the mean growing season flux (1.73 +/- 0.17 g CH4 m-2 month-1 from June to September), of which Sphagnum mosses and sedges accounted for one-fourth and three-fourths, respectively. The presence of dwarf shrubs, on the other hand, had a slightly attenuating effect on the fluxes. In water level drawdown conditions, the mean flux was close to zero (0.03 +/- 0:03 g CH4 m-2 month-1) and the presence and absence of the plant groups had a negligible effect. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_911740 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Annual chamber measurements of CH4 efflux and environmental variables from Lakkasuo peatland, Southern Finland Riutta, Terhi Korrensalo, Aino Laine, Anna Maria Laine, Jukka Tuittila, Eeva-Stiina Climate change; DATE/TIME; dwarf shrubs; Lakkasuo; Methane; Methane, flux per season; Net ecosystem exchange of carbon dioxide per season; Peatland; Plot; sedges; sphagnum; Sphagnum, cover; Treatment This study aimed at investigating the role of vegetation components, sedges, dwarf shrubs, and Sphagnum mosses, in methane fluxes of a boreal fen under natural and experimental water level drawdown conditions. We measured the fluxes during growing seasons 2001-2004 using the static chamber technique in a field experiment where the role of the ecosystem components was assessed via plant removal treatments. The first year was a calibration year after which the water level drawdown and vegetation removal treatments were applied. Under natural water level conditions, plant-mediated fluxes comprised 68 %-78% of the mean growing season flux (1.73 +/- 0.17 g CH4 m-2 month-1 from June to September), of which Sphagnum mosses and sedges accounted for one-fourth and three-fourths, respectively. The presence of dwarf shrubs, on the other hand, had a slightly attenuating effect on the fluxes. In water level drawdown conditions, the mean flux was close to zero (0.03 +/- 0:03 g CH4 m-2 month-1) and the presence and absence of the plant groups had a negligible effect. |
| title | Annual chamber measurements of CH4 efflux and environmental variables from Lakkasuo peatland, Southern Finland |
| topic | Climate change; DATE/TIME; dwarf shrubs; Lakkasuo; Methane; Methane, flux per season; Net ecosystem exchange of carbon dioxide per season; Peatland; Plot; sedges; sphagnum; Sphagnum, cover; Treatment |
| url | https://doi.org/10.1594/PANGAEA.911740 |