The Impact of Experimental Temperature and Water Level Manipulation on Carbon Dioxide Release in a Poor Fen in Northern Poland

Autor: Kamila M. Harenda, Mariusz Lamentowicz, Bjorn J. M. Robroek, Małgorzata Zielińska, Sandra Słowińska, Bogdan H. Chojnicki, Alexandre Buttler, Mateusz Samson, Michał Słowiński, Vincent E. J. Jassey, Jan Barabach
Přispěvatelé: Department of Geoecology and Climatology, Institute of Geography and Spatial Organization, Polish Academy of Sciences, Institute of Physics [Toruń], Faculty of Physics, Astronomy and Informatics [Toruń], Nicolaus Copernicus University [Toruń]-Nicolaus Copernicus University [Toruń], Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, University of Southampton, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire des systèmes écologiques (ECOS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Faculty of Environment Engineering and Spatial Management, Department of Meteorology, Poznan University of Life Sciences, Polska Akademia Nauk = Polish Academy of Sciences (PAN)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Wetlands
Wetlands, Springer Verlag, 2018, 38 (3), pp.551-563. ⟨10.1007/s13157-018-0999-4⟩
ISSN: 0277-5212
Popis: Peatlands are ecosystems for which carbon budget relies strongly on the meteorological and hydrological conditions. Here, using a manipulative field experiment, we measured ecosystem respiration (RECO) over two years (2013–2014) in a poor fen in Poland to estimate the carbon emission in a changing climate. The experiment consisted of warming (open-top chambers - OTC) and water table manipulation. The application of OTC increased the mean values of daily maximum air temperature by approx. 1.1–1.8 °C. Warming or the increased water table depth separately resulted in an increase in ecosystem respiration by approx. 0.1 μmol CO2 m−2 s−1 and 0.3 μmol CO2 m−2 s−1, respectively. However, our results show also the additive nature of warming and water table drawdown impact on daily RECO during the studied years (2013–0.80 μmol CO2 m−2 s−1 and 2014–1.16 μmol CO2 m−2 s−1). With the natural dry period event which occurred in 2014, the seasonal RECO increased by approx. 0.2 μmol CO2 m−2 s−1 as compared to the previous year. Projected global warming will therefore significantly enhance C loss from poor fens in this region of Europe.
Databáze: OpenAIRE
Externí odkaz: