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Greenhouse Gas Fluxes in Tropical and Temperae Agriculture: The Need for a Full-Cost Accounting of Global Warming Potentials

Robertson, G & Grace, Peter (2004) Greenhouse Gas Fluxes in Tropical and Temperae Agriculture: The Need for a Full-Cost Accounting of Global Warming Potentials. Environment, Development and Sustainability: a multidisciplinary approach to the theory and practice of sustainable development, 6(1-2), pp. 51-63.

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Abstract

Agriculture's contribution to radiative forcing is principally through its historical release of carbon in soil and vegetation to the atmosphere and through its contemporary release of nitrous oxide (N2O) and methane (CHM4). The sequestration of soil carbon in soils now depleted in soil organic matter is a well-known strategy for mitigating the buildup of CO2 in the atmosphere. Less well-recognized are other mitigation potentials. A full-cost accounting of the effects of agriculture on greenhouse gas emissions is necessary to quantify the relative importance of all mitigation options. Such an analysis shows nitrogen fertilizer, agricultural liming, fuel use, N2O emissions, and CH4 fluxes to have additional significant potential for mitigation. By evaluating all sources in terms of their global warming potential it becomes possible to directly evaluate greenhouse policy options for agriculture. A comparison of temperate and tropical systems illustrates some of these options.

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ID Code: 37651
Item Type: Journal Article
Keywords: Carbon Dioxide, Carbon Sequestration, Global Warming Potential, Greenhouse Policy, Liming, Methane, Nitrous Oxide, Soil Carbon, Trace Gas Flux
ISSN: 1387-585X
Subjects: Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200)
Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > AGRICULTURE LAND AND FARM MANAGEMENT (070100)
Divisions: Past > Institutes > Institute for Sustainable Resources
Deposited On: 01 Oct 2010 13:09
Last Modified: 29 Feb 2012 23:31

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