A Contribution of the Fuzzy Theory to Farming System Methodology Fuzzy valuation and perception from Fishermen in Western Tocantins, Brazil

Publication Type
Contribution to conference
Authors
Reys, M. A.
Year of publication
2003
Published in
Pre-Proceedings Farming and Rural Systems Research and Extension, Local Identities and Globalisation
Page (from - to)
79-88
Conference name
Fifth International Farming Systems Association European Symposium
Conference location
Florenz, Italien
Conference date
08.-11.04.2002
Keywords
Ecotone, farming systems, Fuzzy Theory
Abstract

Farming Systems and agents in a complex adaptive system frame are examined and Fuzzy theory is presented as a tool to deal with uncertainties and ambiguity presents in the Farming System approach. Fuzzy features underlined in modelling, optimisation and in the construction of logical rules may facilitate the emergence of "best fit" solutions in terms of management of resources and environmental sustainability. An example with fishermen in Bananal Island in Brazil using MAXMIN operator and linguistic variables is presented, fish quantities were classified as normal achievability and enough quantity gathered from the ecotone.

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