Berger, Sina; Praetzel, Leandra; Goebel, Marie; Blodau, Christian; Knorr, Klaus-Holger: Differential response of carbon cycling to long-term nutrient input and altered hydrological conditions in a continental Canadian peatland
Inhalt
- Introduction
- Methods
- Description of the study area and study sites
- Determination of organic matter quality of peat and pore water
- Measurements of environmental variables
- Determination of CO2 and CH4 fluxes
- Sampling of dissolved gases in the peat
- Analyses of CO2 and CH4 concentrations and 13C--CO2 and 13C--CH4 values
- Statistical analysis
- Results
- Organic matter quality of peat and pore water
- Development of WTD and Twater during the study period
- Fluxes of CO2 and CH4 at the soil--atmosphere interface and concentrations of CH4 and DIC along peat profiles during the study period
- Temporal and spatial variability of 13C--CO2 and 13C--CH4 values in peat pore-gas profiles during the growing season in 2015
- 13C signatures of emitted CH4 during summer 2015
- Discussion
- Long-term insights into carbon cycling at the sites
- Seasonal development of carbon fluxes
- Methane production, methanotrophy, and pathways of CH4 emissions as inferred from stable isotopes
- Concluding remarks
- Data availability
- Author contributions
- Competing interests
- Acknowledgements
- References