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Type: Artigo de evento
Title: Emergy Analysis Of Irrigated Organic And Conventional Production Of Olive And Olive Oil In Crete, Greece Preliminary Study
Author: Khalaf D.
Metzidakis J.
Sfakiotakis E.
Ortega E.
Abstract: Olive is the oldest known cultivated crop in the world. Recently, the largest three producer countries of olive oil are Spain, Italy and Greece. Greece produces about 16.76% of the total world production that reaches about 1.800.8000 in the last years (FAO, 1990-1998). The objective of this work was to make an ecological and economical appraisal of agrochemical "conventional" and ecological "organic" proposals by using the Emergy1 analyses and indices. Crete is the largest producer of olive oil in Greece, representing 33% of the total olive oil production (Kabourakis, 1996 and ECE, 1991). So, tow olive farming there in Crete was used - one as an organic and the other is conventional - for the production year 1998-1999. The olive oil is considered as a product of energy terms (Joules) and all inputs including natural contributions (renewable and non-renewable energy sources) and economy inputs (material, services, payment, fuel, etc), as energy flow. To do that all the various data were transformed into equivalent solar energy flow (Sej/j), using transformity factors obtained from literature. The result is discussed using energy indices. That total emergy used for the irrigated conventional orchard was (7.54E+15) and (5.95E+15) Sej/j for the organic one. The renewability index is 0.18, then the conventional was 0.16 The emergy money received for the organic was (1.46E+16) Sej/j, which is higher than the conventional production (7.57E+15). Finally, for the economical and marketing sides, the emergy investment ratio was indicated, the results show that the organic orchard had a value of (4.21) and (4.99) for the conventional. From the previous results, the organic orchards are more sustainable, with fewer losses. But still needs more attention in order to be strong competitor in the market. However, it will be the most interesting solution and important role in the future economy.
Rights: fechado
Identifier DOI: 
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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