Estimate of greenhouse gases emissions from agriculture in Slovenia - 3. Structure of emissions and possibilities for reduction
2001
Verbic, J. | Susin, J. | Podgorsek, P. (Agricultural Inst. of Slovenia, Ljubljana (Slovenia))
In 1996, it was estimated that 42.700 tons of methane and 4.455 tons of nitrous oxide (N2O) were emitted due to agricultural activities in Slovenia. Expressed in carbon dioxide equivalent methane represented 39.4 and N2O 60.6% of total greenhouse effect. If emissions due to fertilisation with manure are considered as belonging among animal production branches, cattle production contributes 60.1%, pig production 14.3%, poultry production 5.2% and horse and small ruminant production 1.9% of total greenhouse effect. Plant production contributes 18.5% of total greenhouse effect. According to origin the most important are methane emissions due to enteric fermentation in domestic animals (31%), followed by N2O emissions due to fertilisation with mineral fertilisers and manure (17%), indirect N2O emissions as a consequence of leaching and runoff of nitrogen containing substances in the groundwater and surface waters (15%), methane emissions during the storage of manure (8%), N2O emissions due to crop residue decomposition, N2O emissions as a consequence of atmospheric deposition of ammonia and NOX (3%) and N2O emissions due to biological N fixation. A survey of possibilities for the abatement of greenhouse gases is given.
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