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CO2 Fluxes from Different Vegetation Communities on a Peatland Ecosystem
- Source :
- Wetlands. 37:423-435
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
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.
- Subjects :
- 0106 biological sciences
geography
Peat
geography.geographical_feature_category
010504 meteorology & atmospheric sciences
Ecology
Q10
Wetland
Vegetation
Seasonality
medicine.disease
Atmospheric sciences
010603 evolutionary biology
01 natural sciences
medicine
Environmental Chemistry
Environmental science
Ecosystem
Ecosystem respiration
Water content
0105 earth and related environmental sciences
General Environmental Science
Subjects
Details
- ISSN :
- 19436246 and 02775212
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Wetlands
- Accession number :
- edsair.doi...........5a8d8877b86db90f8e0bbc4220b09c62