Autori: Dono, Gabriele, Cortignani, Raffaele, Giraldo, Luca, Doro, Luca, Ledda, Luigi, Roggero, Pier Paolo
Titolo: Valutare l'impatto economico e produttivo dei cambiamenti climatici in una zona di agricoltura irrigua mediterranea soggetta a scarsità idrica = Assessing the economic and productive impact of climate change in a Mediterranean irrigated agricultural area subject to water shortage
Periodico: Economia & diritto agroalimentare
Anno: 2012 - Volume: 17 - Fascicolo: 3 - Pagina iniziale: 395 - Pagina finale: 414

Climate changes in agriculture act on various climate variables (precipitation, temperature etc.) at different times of crop cycles. Many physical and technical relationships have to be represented even when analyzing a limited aspect of farm management. This work employs the net evapotranspiration (ETN) estimated with the EPIC model, as a synthetic index of the physical factors that the farmer considers in decisions on irrigation. The probability distribution of ETN is inserted into a territorial model of DSP that represents farm choices in conditions of uncertainty about water availability and irrigation requirements of crops. Recent trends of ETN suggest that the probability distribution of this variable may appreciably change in the near future. Also, water availabil- ity may become more variable due to changed rainfall. These modifications amplify uncertainty of management and, consequently, costs incurred by the farm typologies of the study area, which in many cases suffer an appreciable drop in income.




SICI: 1970-9498(2012)17:3<395:VLEEPD>2.0.ZU;2-Q
Testo completo: http://www.fupress.net/index.php/eda/article/download/11873/11277

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