A detailed greenhouse gas budget for palm oil production
Autor: | Ian E Henson, Laurence D. C. Chase |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | International Journal of Agricultural Sustainability. 8:199-214 |
ISSN: | 1747-762X 1473-5903 |
DOI: | 10.3763/ijas.2010.0461 |
Popis: | We have evaluated the global warming impact of palm oil production in a model that simulates the operations of a typical palm oil mill that processes fruit from a nucleus estate and outgrowers. It estimates carbon sequestration in the crop and in mill products and by-products, and balances this against the major sources of greenhouse gases (GHGs), all converted to carbon dioxide equivalents (CO2-e) over the 25-year lifespan of the crop. The model shows that most carbon sequestration occurs in the standing crop, with smaller amounts in mill products and by-products. Land-use conversion plays a dominant role in the GHG budget, with planting of oil palm after logged forest or rubber leading to a net loss of carbon, and to a net gain following grassland. In the default oil-palm-to-oil-palm case the carbon lost from cleared palms is balanced by sequestration in the current crop. Methane from mill effluent and nitrous oxide from N fertilizers are the next most important emission sources. The default replant cas... |
Databáze: | OpenAIRE |
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