Influence of summer flood on the net ecosystem exchange of CO2 in a temperate sedge-grass marsh

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F09%3A00342873" target="_blank" >RIV/67179843:_____/09:00342873 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of summer flood on the net ecosystem exchange of CO2 in a temperate sedge-grass marsh
Original language description
Characteristics of CO2?C exchange were studied in a temperate herbaceous wetland in 2006 and 2007, years with contrasting hydrological regimes. Net ecosystem production (NEP) was calculated from the CO2 fluxes measured by the eddy-covariance technique and was compared with the seasonal course of plant live aboveground biomass. The results show that: (1) the annual net uptake of CO2?C was 199 and 220 g C m1 yr1 in 2006 and 2007, respectively. The daily net CO2?C uptake reached 12?20 g C m2 day1 in sunnysummer days. (2) Although the observed wetland is adapted to floods, the summer flood substantially reduced its net CO2?C uptake. The daily courses of net CO2?C uptake point to reduced rates of CO2?C fixation by the vegetation cover. (3) A recovery growth of plant biomass was associated with a second peak of NEP in September 2006. (4) Lack of knowledge on the dynamics of methane emissions presently limits deeper understanding of the effect of floods on carbon balance in wetlands.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
ED - Physiology
OECD FORD branch
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Project
<a href="/en/project/SP%2F2D1%2F93%2F07" target="_blank" >SP/2D1/93/07: Czech Terra - adaptation of lanscape carbon sinks in the context of global change</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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