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Combination of the Swiss agrarian sector model SILAS-dyn with the life cycle assessment tool SALCA AgEcon
Zimmermann, Albert.
The agricultural sector model SILAS-dyn has been used by Agroscope ART for 10 years for the political advisory of the Swiss agricultural administration. To evaluate the environmental effects of different policy scenarios, a LCA module has been developed, connecting a hierarchical linkage to an existing LCA calculating tool. This lowers the formulation input and simplifies the adaptation of updated environmental models. The results of four scenarios show, through the example of energy use as an environmental impact, that indirect effects, such as energy use in the context of imported concentrates, can influence conclusions significantly. The scenario suggesting an increase of fertiliser prices does not change the results significantly, whereas higher energy...
Tipo: Conference Paper or Presentation Palavras-chave: Sector model; LP; Political advisory; LCA; Income; Agricultural and Food Policy; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/6603
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EVALUATING EXTENSIVE SHEEP FARMING SYSTEMS AgEcon
Stott, Alistair W.; Vosough Ahmadi, Bouda; Morgan-Davies, Claire; Dwyer, Cathy M.; Goddard, Pete; Phillips, Kate; Milne, Catherine E.; Kupiec-Teahan, Beata; Ringrose, Sian; Waterhouse, Tony.
Data from each of 5 commercial, extensive sheep farms in Cumbria, UK were used as parameters in a linear program (LP) representing labour and grazing management in such farming systems. The LP maximised ewe enterprise gross margin subject to constraints dictated by the labour availability and land types on each farm. Under the assumptions used, labour availability and price restricted ewe numbers well below those observed in practice on 2 farms i.e. land resources were adequate for the farming system practiced. On two other farms stocking levels and hence returns were limited by the availability of forage and hence feed input prices relative to output. On one farm, greater grassland productivity was the key determinant of system performance. It was...
Tipo: Working or Discussion Paper Palavras-chave: Livestock Production/Industries; Extensive; Sheep; Economics; LP.
Ano: 2009 URL: http://purl.umn.edu/61123
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