Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers
- Univ. of Wisconsin, Madison, WI (United States). Office of Sustainability
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Soil Science
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Agronomy; Univ. of Wisconsin, Madison, WI (United States). Great Lakes Bioenergy Research Center
- US Dept. of Agriculture (USDA), Madison, WA (United States). Dairy Forage Research Center
- US Dept. of Agriculture (USDA), Madison, WA (United States). Pasture Systems Watershed Management Research Unit
Measurement of greenhouse gas (GHG) fluxes between the soil and the atmosphere, in both managed and unmanaged ecosystems, is critical to understanding the biogeochemical drivers of climate change and to the development and evaluation of GHG mitigation strategies based on modulation of landscape management practices. The static chamber-based method described here is based on trapping gases emitted from the soil surface within a chamber and collecting samples from the chamber headspace at regular intervals for analysis by gas chromatography. Change in gas concentration over time is used to calculate flux. This method can be utilized to measure landscape-based flux of carbon dioxide, nitrous oxide, and methane, and to estimate differences between treatments or explore system dynamics over seasons or years. Infrastructure requirements are modest, but a comprehensive experimental design is essential. This method is easily deployed in the field, conforms to established guidelines, and produces data suitable to large-scale GHG emissions studies.
- Research Organization:
- Battelle Memorial Institute, Columbus, OH (United States); Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division; National Science Foundation (NSF)
- Grant/Contract Number:
- AC05-76RL01830; FC02-07ER64494; 2013-68002-20525; 1215858
- OSTI ID:
- 1628639
- Journal Information:
- Journal of Visualized Experiments, Journal Issue: 90; ISSN 1940-087X
- Publisher:
- MyJoVE Corp.Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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