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Wetlands

, Volume 37, Issue 3, pp 423–435 | Cite as

CO2 Fluxes from Different Vegetation Communities on a Peatland Ecosystem

  • Manuel AcostaEmail author
  • Radek Juszczak
  • Bogdan Chojnicki
  • Marian Pavelka
  • Kateřina Havránková
  • Jacek Lesny
  • Lenka Krupková
  • Marek Urbaniak
  • Kateřina Machačová
  • Janusz Olejnik
Original Research

Abstract

Although most studies find temperature, soil moisture and water table to be important environmental factors that affect peatland carbon dynamics, the role of vegetation communities has been investigated less. Therefore, this study investigates whether peatland ecosystems produce heterogeneous CO2 fluxes due to differences in vegetation community. In addition, the study also examines which major environmental factors influence this vegetation. To achieve the aims of this study, four sites with different vegetation communities were established in a semi-natural peatland ecosystem in Poland. CO2 flux measurements were carried out using a closed dynamic chamber system. Measurement campaigns were carried out from April until December 2008, every 2–3 weeks. Measured ecosystem respiration (Reco) and net ecosystem exchange (NEE) rates showed daily and seasonal variation at all investigated sites. Reco presented a strong dependence on soil temperature at the 5 cm depth, while NEE showed a strong dependence on solar radiation. The mean temperature sensitivity (Q10) for the four sites ranged between 3.17 and 8.3. The highest NEE and Reco values were obtained at the site represented by Caricetum elatae and the lowest NEE and Reco at the site represented by Calamagrostietum neglectae.

Keywords

Chamber method Ecosystem respiration Net ecosystem exchange Q10 – temperature sensitivity, LAI – leaf area index 

Notes

Acknowledgements

This work was supported by the EU FP6 Project “GREENFLUX”, MTKD-CT-2006-042445, the project of Polish Ministry of Science No. 752/N-COST/2010/0 and by the Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Program I (NPU I), grant number LO1415. We would like to thank Mr. Ryan McGloin for the linguistic revision.

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Copyright information

© Society of Wetland Scientists 2017

Authors and Affiliations

  • Manuel Acosta
    • 1
    Email author
  • Radek Juszczak
    • 2
  • Bogdan Chojnicki
    • 2
  • Marian Pavelka
    • 1
  • Kateřina Havránková
    • 1
  • Jacek Lesny
    • 2
  • Lenka Krupková
    • 1
  • Marek Urbaniak
    • 2
  • Kateřina Machačová
    • 3
  • Janusz Olejnik
    • 1
    • 2
  1. 1.Department of Matters and Energy FluxesGlobal Change Research Institute, CAS, v.v. i.BrnoCzech Republic
  2. 2.Department of MeteorologyPoznan University of Life SciencesPoznanPoland
  3. 3.Laboratory of Ecological Plant PhysiologyGlobal Change Research Institute, CAS, v.v.i.BrnoCzech Republic

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