Carbon dioxide fluxes and carbon balance of an agricultural grassland in southern Finland

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dc.contributor University of Helsinki, Institute for Atmospheric and Earth System Research (INAR) en
dc.contributor University of Helsinki, Forest Ecology and Management en
dc.contributor University of Helsinki, Finnish Meteorological Institute en
dc.contributor University of Helsinki, Department of Forest Sciences en
dc.contributor.author Heimsch, Laura
dc.contributor.author Lohila, Annalea
dc.contributor.author Tuovinen, Juha-Pekka
dc.contributor.author Vekuri, Henriikka
dc.contributor.author Heinonsalo, Jussi
dc.contributor.author Nevalainen, Olli
dc.contributor.author Korkiakoski, Mika
dc.contributor.author Liski, Jari
dc.contributor.author Laurila, Tuomas
dc.contributor.author Kulmala, Liisa
dc.date.accessioned 2021-07-27T15:46:01Z
dc.date.available 2021-07-27T15:46:01Z
dc.date.issued 2021-06-10
dc.identifier.citation Heimsch , L , Lohila , A , Tuovinen , J-P , Vekuri , H , Heinonsalo , J , Nevalainen , O , Korkiakoski , M , Liski , J , Laurila , T & Kulmala , L 2021 , ' Carbon dioxide fluxes and carbon balance of an agricultural grassland in southern Finland ' , Biogeosciences , vol. 18 , no. 11 , pp. 3467-3483 . https://doi.org/10.5194/bg-18-3467-2021 en
dc.identifier.issn 1726-4170
dc.identifier.other PURE: 166951017
dc.identifier.other PURE UUID: b4ccffa7-eb67-483b-9a38-008e6b0956e7
dc.identifier.other WOS: 000662149900003
dc.identifier.other Scopus: 85107916742
dc.identifier.other ORCID: /0000-0001-8516-1388/work/97636547
dc.identifier.other ORCID: /0000-0003-1775-8240/work/97636690
dc.identifier.other ORCID: /0000-0001-6875-9978/work/97639280
dc.identifier.uri http://hdl.handle.net/10138/332632
dc.description.abstract A significant proportion of the global carbon emissions to the atmosphere originate from agriculture. Therefore, continuous long-term monitoring of CO2 fluxes is essential to understand the carbon dynamics and balances of different agricultural sites. Here we present results from a new eddy covariance flux measurement site located in southern Finland. We measured CO2 and H2O fluxes at this agricultural grassland site for 2 years, from May 2018 to May 2020. In particular the first summer experienced prolonged dry periods, which affected the CO2 fluxes, and substantially larger fluxes were observed in the second summer. During the dry summer, leaf area index (LAI) was notably lower than in the second summer. Water use efficiency increased with LAI in a similar manner in both years, but photosynthetic capacity per leaf area was lower during the dry summer. The annual carbon balance was calculated based on the CO2 fluxes and management measures, which included input of carbon as organic fertilizers and output as yield. The carbon balance of the field was -57 +/- 10 and -86 +/- 12 g C m(-2) yr(-1) in the first and second study years, respectively. en
dc.format.extent 17
dc.language.iso eng
dc.relation.ispartof Biogeosciences
dc.rights en
dc.subject 114 Physical sciences en
dc.subject 4112 Forestry en
dc.subject 1172 Environmental sciences en
dc.title Carbon dioxide fluxes and carbon balance of an agricultural grassland in southern Finland en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.5194/bg-18-3467-2021
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
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