title: Carbon exchange between ecosystems and atmosphere in the Czech Republic is affected by climate factors.
abstract: By comparing five ecosystem types in the Czech Republic over several years, we recorded the highest carbon sequestration potential in an evergreen Norway spruce forest (100%) and an agroecosystem (65%), followed by European beech forest (25%) and a wetland ecosystem (20%). Because of a massive ecosystem respiration, the final carbon gain of the grassland was negative. Climate was shown to be an important factor of carbon uptake by ecosystems: by varying the growing season length (a 22-d longer season in 2005 than in 2007 increased carbon sink by 13%) or by the effect of short- term synoptic situations (e.g. summer hot and dry days reduced net carbon storage by 58% relative to hot and wet days). Carbon uptake is strongly affected by the ontogeny and a production strategy which is demonstrated by the comparison of seasonal course of carbon uptake between coniferous (Norway spruce) and deciduous (European beech) stands.
authors.affiliation: Global Change Research Centres, Academy of Science of the Czech Republic, Bělidla 4a CZ-60300 Brno, Czech Republic. marek.mv@czechglobe.cz
authors.forename: Michal V
authors.initials: MV
authors.lastname: Marek
authors.forename: Dalibor
authors.initials: D
authors.lastname: Janouš
authors.forename: Klára
authors.initials: K
authors.lastname: Taufarová
authors.forename: Kateřina
authors.initials: K
authors.lastname: Havránková
authors.forename: Marian
authors.initials: M
authors.lastname: Pavelka
authors.forename: Věroslav
authors.initials: V
authors.lastname: Kaplan
authors.forename: Irena
authors.initials: I
authors.lastname: Marková
mesh_terms: D000383:Agriculture; D057965:Carbon Sequestration; D002980:Climate; D018153:Czech Republic; D017753:Ecosystem; D029964:Fagus / Q000378:metabolism; D028222:Picea / Q000378:metabolism; D006109:Poaceae / Q000378:metabolism; D014197:Trees / Q000378:metabolism