de.pangaea.dataset862986 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-06-26T09:33:22Z https://doi.pangaea.de/10.1594/PANGAEA.862986 2016-07-12T08:48:42 publication https://doi.org/10.1594/PANGAEA.862986 Korrensalo, Aino

aino.korrensalo@uef.fi

author Hájek, Tomas author Alekseychik, Pavel https://orcid.org/0000-0002-4081-3917 information author Rinne, Janne https://orcid.org/0000-0003-1168-7138 information author Vesala, Timo https://orcid.org/0000-0002-4852-7464 information author Mehtätalo, Lauri https://orcid.org/0000-0002-8128-0598 information author Mammarella, Ivan https://orcid.org/0000-0002-8516-3356 information author Tuittila, Eeva-Stiina

eeva-stiina.tuittila@uef.fi

https://orcid.org/0000-0001-8861-3167 information author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Korrensalo, Aino; Alekseychik, Pavel; Hájek, Tomas; Rinne, Janne; Vesala, Timo; Mehtätalo, Lauri; Mammarella, Ivan; Tuittila, Eeva-Stiina (2017): Species-specific temporal variation in photosynthesis as a moderator of peatland carbon sequestration. Biogeosciences, 14(2), 257-269, https://doi.org/10.5194/bg-14-257-2017 In boreal bogs plant species are low in number, but they differ greatly in their growth forms and photosynthetic properties. We assessed how ecosystem carbon (C) sink dynamics were affected by seasonal variations in photosynthetic rate and leaf area of different species. Photosynthetic properties (light-response parameters), leaf area development and areal cover (abundance) of the species were used to quantify species-specific net and gross photosynthesis rates (PN and PG, respectively), which were summed to express ecosystem-level PN and PG. The ecosystem-level PG was compared with a gross primary production (GPP) estimate derived from eddy covariance measurements (EC). Species areal cover rather than differences in photosynthetic properties determined the species with the highest PG of both vascular plants and Sphagna. Species-specific contributions to the ecosystem PG varied over the growing season, which in turn determined the seasonal variation in ecosystem PG. The upscaled growing-season PG estimate, 230 g C/m**2, agreed well with the GPP estimated by the EC, 243 g C/m**2. Sphagna were superior to vascular plants in ecosystem-level PG throughout the growing season but had a lower PN. PN results indicated that areal cover of the species together with their differences in photosynthetic parameters shape the ecosystem-level C balance. Species with low areal cover but high photosynthetic efficiency appear to be potentially important for the ecosystem C sink. Results imply that functional diversity may increase the stability of C sink of boreal bogs. completed Korrensalo, Aino

aino.korrensalo@uef.fi

principalInvestigator copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 24.2 24.2 61.83 61.83 2013-05-01T00:00:00 2013-09-30T00:00:00 Day of the year physicalMeasurement day day DATE/TIME thematicClassification Gross primary production of carbon dioxide physicalMeasurement mg/m**2/h mg/m**2/h Water table level physicalMeasurement from the surface cm cm Leaf area index thematicClassification Andromeda polifolia Leaf area index thematicClassification Betula nana Leaf area index thematicClassification Calluna vulgaris Leaf area index thematicClassification Carex limosa Leaf area index thematicClassification Empetrum nigrum Leaf area index thematicClassification Eriophorum vaginatum Leaf area index thematicClassification Rubus chamaemorus Leaf area index thematicClassification Rhynchospora alba Leaf area index thematicClassification Scheuchzeria palustris Leaf area index thematicClassification Trichophorum cespitosum Leaf area index thematicClassification Vaccinium oxycoccos Leaf area index thematicClassification Sum of vascular LAI text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.862986?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: South_Finland * LATITUDE: 61.830000 * LONGITUDE: 24.200000 * LOCATION: Finland Further details https://store.pangaea.de/Publications/KorrensaloA-etal_2016/Photosynthetic_light_response.xlsx documentDigital