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THE INFLUENCE OF WATER TABLE LEVELS ON METHANE AND CARBON DIOXIDE EMISSIONS FROM PEATLAND SOILS
Abstract
The evolution of carbon dioxide and methane was measured from laboratory columns packed with surface (0–30 cm) materials representing a fen, a bog and a swamp and with varying water tables and treated with water containing 10 mg L−1 dissolved organic carbon. Carbon dioxide evolution increased in a linear relationship as the water table was lowered, ranging from 0.3–0.5 g CO 2 m−2 d−1 to 6.6–9.4 g CO 2 m−2 d−1 for the water table at 10 cm above and 70 cm below the peat surface, respectively. Methane evolution decreased in a logarithmic relationship as the water table was lowered. The fen showed the highest rates of methane flux (28 mg CH 4 m−2 d−1 when inundated) and the bog the lowest (0.7 mg CH 4 m−2 d−1 when inundated). These differences appeared to be related to the acidity of the soils and their microbial characteristics. Molar ratios of carbon dioxide:methane evolution increased from 4 to 173 under inundated conditions to > 2500 when the water table was at a depth of 70 cm. Key words: Methane, carbon dioxide, water table, organic soils, peatlands
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Citations
Cited by
Stabilization and destabilization of soil organic matter: mechanisms and controls
Sollins, P., Homann, P., & Caldwell, B. A. (1996) · Geoderma · doi:10.1016/s0016-7061(96)00036-5 · Cited by 1,578
Methane production and methane consumption: a review of processes underlying wetland methane fluxes
Segers, R. (1998) · Biogeochemistry · doi:10.1023/a:1005929032764 · Cited by 907
Feedback control of the rate of peat formation
Belyea, L. R., & Clymo, R. S. (2001) · Proceedings of the Royal Society of London. Series B: Biological Sciences · doi:10.1098/rspb.2001.1665 · Cited by 344
BAUMANN, F., HE, J., SCHMIDT, K., KÜHN, P., & SCHOLTEN, T. (2009) · Global Change Biology · doi:10.1111/j.1365-2486.2009.01953.x · Cited by 205
Soil organic carbon and root distribution in a temperate arable agroforestry system
Upson, M. A., & Burgess, P. J. (2013) · Plant and Soil · doi:10.1007/s11104-013-1733-x · Cited by 109
Metadata
- Authors
- MOORE, T. R., & KNOWLES, R.
- Venue
- Canadian Journal of Soil Science
- Publisher
- Canadian Science Publishing
- Published
- 1989-02-01
- Volume
- 69
- Issue
- 1
- Pages
- 33-38
- ISSN
- 0008-4271 (ISSN-L)
- 1918-1841
- OpenAlex
- W2093051994
- Cited by
- 459
- References
- 0
- FWCI
- 13.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: THE INFLUENCE OF WATER TABLE LEVELS ON METHANE AND CARBON DIOXIDE EMISSIONS FROM PEATLAND SOILS. https://app.cochat.ai/papers/10.4141/cjss89-004
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- MOORE, T. R., & KNOWLES, R. (1989). THE INFLUENCE OF WATER TABLE LEVELS ON METHANE AND CARBON DIOXIDE EMISSIONS FROM PEATLAND SOILS. Canadian Journal of Soil Science. https://doi.org/10.4141/cjss89-004
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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