We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Carbon balance of a restored and cutover raised bog: Comparison to global trends.
- Authors
Swenson, Michael M.; Regan, Shane; Bremmers, Dirk T. H.; Lawless, Jenna; Saunders, Matthew; Gill, Laurence W.
- Abstract
All major aspects of the carbon balance - net ecosystem exchange (NEE), CH4 flux, losses of dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC), and open water CO2 evasion - were measured for several distinct ecotypes in a restored unharvested raised bog and an adjacent historically abandoned cutover bog over a two year period. The average annual ecotype carbon balance at the Sub-Central ecotype, with eco-hydrological characteristics most similar to a high quality raised bog, was the largest net carbon sink of -32 ± 65 g C m-2 yr-1 while the Calluna Cutover ecotype, with the characteristics of a well-drained peatland site was the largest net carbon source of 239 ± 83 g C m-2 yr-1. The annual carbon balance from all ecotype study locations was found to be controlled by mean annual water table (MAWT). Also, significant negative correlation was observed between the plot global warming potential and percent Sphagnum moss cover, highlighting the importance of regenerating this keystone genus as a climate change mitigation strategy in peatland restoration. The data from this study was then compared to the rapidly growing number of peatland carbon balance studies across Boreal and Temperate regions. The trend in NEE and CH4 flux with respect to MAWT was compared for the five ecotypes in this study was and literature data from degraded/restored peatlands, intact peatlands, and bare peat sites.
- Subjects
BOG ecology; CARBON content of water; CLIMATE change mitigation; RESTORATION ecology; ECOHYDROLOGY
- Publication
Biogeosciences Discussions, 2018, p1
- ISSN
1810-6277
- Publication type
Article
- DOI
10.5194/bg-2018-350