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Detailed Reference Information |
Lassey, K.R., Lowe, D.C., Manning, M.R. and Waghorn, G.C. (1992). A source inventory for atmospheric methane in New Zealand and its global perspective. Journal of Geophysical Research 97: doi: 10.1029/91JD02294. issn: 0148-0227. |
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Methane is an important greenhouse constituent of the atmosphere. Its global source inventory is briefly reviewed, and the aggregated source in the range 270-760 Tg CH4/yr is compatible with independent measurement. The constraints imposed by isotopic information are also discussed. We then exploit this global data base to provide a first detailed estimate of New Zealand sources of methane and their uncertainties, placing these in global perspective. The aggregate New Zealand methane source is estimated to lie in the range 1.3-2.2 Tg/yr. Nearly all of this emission is caused by human modification of the environment and is dominated (~75%) by ''enterically fermented'' methane from farmed livestock, predominantly by sheep and lambs (58%) and by cattle (40%). At about 0.3% of global emissions, New Zealand is a disproportionately large methane source on either a per capita or land area basis, or when compared with the New Zealand share (0.13%) of global carbon dioxide emissions from industry and from fossil fuel consumption. ¿ American Geophysical Union 1992 |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Troposphere—composition and chemistry, Information Related to Geographic Region, Australia, Atmospheric Composition and Structure, Biosphere-atmosphere interactions, Atmospheric Composition and Structure, Geochemical cycles |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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