Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil
Abstract
Highlights: Black-Right-Pointing-Pointer We quantify above- and below-ground CH{sub 4} fluxes in a landfill-cover soil. Black-Right-Pointing-Pointer We link methanotrophic activity to estimates of CH{sub 4} loading from the waste body. Black-Right-Pointing-Pointer Methane loading and emissions are highly variable in space and time. Black-Right-Pointing-Pointer Eddy covariance measurements yield largest estimates of CH{sub 4} emissions. Black-Right-Pointing-Pointer Potential methanotrophic activity is high at a location with substantial CH{sub 4} loading. - Abstract: Landfills are a major anthropogenic source of the greenhouse gas methane (CH{sub 4}). However, much of the CH{sub 4} produced during the anaerobic degradation of organic waste is consumed by methanotrophic microorganisms during passage through the landfill-cover soil. On a section of a closed landfill near Liestal, Switzerland, we performed experiments to compare CH{sub 4} fluxes obtained by different methods at or above the cover-soil surface with below-ground fluxes, and to link methanotrophic activity to estimates of CH{sub 4} ingress (loading) from the waste body at selected locations. Fluxes of CH{sub 4} into or out of the cover soil were quantified by eddy-covariance and static flux-chamber measurements. In addition, CH{sub 4} concentrations at the soil surface were monitored using a field-portable FID detector. Near-surface CH{sub 4} fluxes and CH{sub 4} loading weremore »
- Authors:
-
- Institute of Agricultural Sciences, ETH Zuerich, Universitaetstrasse 2, 8092 Zuerich (Switzerland)
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zuerich, Universitaetstrasse 16, 8092 Zuerich (Switzerland)
- Laboratory for Environmental Biotechnology, EPF Lausanne, 1015 Lausanne (Switzerland)
- Oester Messtechnik, Bahnhofstrasse 3, 3600 Thun (Switzerland)
- Publication Date:
- OSTI Identifier:
- 21612967
- Resource Type:
- Journal Article
- Journal Name:
- Waste Management
- Additional Journal Information:
- Journal Volume: 32; Journal Issue: 5; Other Information: DOI: 10.1016/j.wasman.2011.11.003; PII: S0956-053X(11)00500-9; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0956-053X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; AIR; COMPLEX TERRAIN; EMISSION; GREENHOUSE GASES; METHANE; MICROORGANISMS; ORGANIC WASTES; OXIDATION; RADON; SANITARY LANDFILLS; SINKS; SOILS; SWITZERLAND; ALKANES; CHEMICAL REACTIONS; DEVELOPED COUNTRIES; ELEMENTS; EUROPE; FLUIDS; GASES; HYDROCARBONS; MANAGEMENT; NONMETALS; ORGANIC COMPOUNDS; RARE GASES; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES; WESTERN EUROPE
Citation Formats
Schroth, M.H., E-mail: martin.schroth@env.ethz.ch, Eugster, W, Gomez, K E, Gonzalez-Gil, G, Niklaus, P A, and Oester, P. Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil. United States: N. p., 2012.
Web. doi:10.1016/j.wasman.2011.11.003.
Schroth, M.H., E-mail: martin.schroth@env.ethz.ch, Eugster, W, Gomez, K E, Gonzalez-Gil, G, Niklaus, P A, & Oester, P. Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil. United States. https://doi.org/10.1016/j.wasman.2011.11.003
Schroth, M.H., E-mail: martin.schroth@env.ethz.ch, Eugster, W, Gomez, K E, Gonzalez-Gil, G, Niklaus, P A, and Oester, P. 2012.
"Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil". United States. https://doi.org/10.1016/j.wasman.2011.11.003.
@article{osti_21612967,
title = {Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil},
author = {Schroth, M.H., E-mail: martin.schroth@env.ethz.ch and Eugster, W and Gomez, K E and Gonzalez-Gil, G and Niklaus, P A and Oester, P},
abstractNote = {Highlights: Black-Right-Pointing-Pointer We quantify above- and below-ground CH{sub 4} fluxes in a landfill-cover soil. Black-Right-Pointing-Pointer We link methanotrophic activity to estimates of CH{sub 4} loading from the waste body. Black-Right-Pointing-Pointer Methane loading and emissions are highly variable in space and time. Black-Right-Pointing-Pointer Eddy covariance measurements yield largest estimates of CH{sub 4} emissions. Black-Right-Pointing-Pointer Potential methanotrophic activity is high at a location with substantial CH{sub 4} loading. - Abstract: Landfills are a major anthropogenic source of the greenhouse gas methane (CH{sub 4}). However, much of the CH{sub 4} produced during the anaerobic degradation of organic waste is consumed by methanotrophic microorganisms during passage through the landfill-cover soil. On a section of a closed landfill near Liestal, Switzerland, we performed experiments to compare CH{sub 4} fluxes obtained by different methods at or above the cover-soil surface with below-ground fluxes, and to link methanotrophic activity to estimates of CH{sub 4} ingress (loading) from the waste body at selected locations. Fluxes of CH{sub 4} into or out of the cover soil were quantified by eddy-covariance and static flux-chamber measurements. In addition, CH{sub 4} concentrations at the soil surface were monitored using a field-portable FID detector. Near-surface CH{sub 4} fluxes and CH{sub 4} loading were estimated from soil-gas concentration profiles in conjunction with radon measurements, and gas push-pull tests (GPPTs) were performed to quantify rates of microbial CH{sub 4} oxidation. Eddy-covariance measurements yielded by far the largest and probably most representative estimates of overall CH{sub 4} emissions from the test section (daily mean up to {approx}91,500 {mu}mol m{sup -2} d{sup -1}), whereas flux-chamber measurements and CH{sub 4} concentration profiles indicated that at the majority of locations the cover soil was a net sink for atmospheric CH{sub 4} (uptake up to -380 {mu}mol m{sup -2} d{sup -1}) during the experimental period. Methane concentration profiles also indicated strong variability in CH{sub 4} loading over short distances in the cover soil, while potential methanotrophic activity derived from GPPTs was high (v{sub max} {approx} 13 mmol L{sup -1}(soil air) h{sup -1}) at a location with substantial CH{sub 4} loading. Our results provide a basis to assess spatial and temporal variability of CH{sub 4} dynamics in the complex terrain of a landfill-cover soil.},
doi = {10.1016/j.wasman.2011.11.003},
url = {https://www.osti.gov/biblio/21612967},
journal = {Waste Management},
issn = {0956-053X},
number = 5,
volume = 32,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2012},
month = {Tue May 15 00:00:00 EDT 2012}
}