Greenhouse gas emissions from stored liquid swine manure in a cold climate [An article from: Atmospheric Environment]

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Description:
Current global warming has been linked to increases in greenhouse gas (GHG) concentrations. Animal manure is an important source of anthropogenic GHG, mostly of methane (CH"4) and nitrous oxide (N"2O). Country-specific emission estimates of these GHG can be obtained using IPCC 2000 guidelines, or suggested improvement, such as the USEPA approach for CH"4 emissions, which is based on monthly air temperature (T"a"i"r). These approaches have not been validated against measured CH"4 and N"2O fluxes for liquid swine manure storage in cold climates due to the scarcity of year-round studies. A four-tower micrometeorological mass balance method was used at three swine farms (Arkell, Guelph, and Jarvis) in Ontario, Canada (annual T"a"i"r