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Revista de Ciencias Agrícolas
versión impresa ISSN 0120-0135
Resumen
DIEGO ANDRES, Muñoz G; JORGE FERNANDO, Navia E y BETO, Moreno. Decision modelsin the management of tree cover atcattle farms of Nariño. Rev. Cienc. Agr. [online]. 2014, vol.31, n.2, pp.76-92. ISSN 0120-0135. https://doi.org/10.22267/rcia.143101.44.
Decision-making by farmers of the activities conducted at their farms has a direct or indirect influence on tree cover, affecting its structure, density, and composition. This study was conducted at the municipalities of Guachucal and Cumbal, in the department of Nariño, Colombia, with the aim of identifying the criteria and key decisions made by farmers in the management of tree cover in milk producing cattle farms. The decisions were modeled and simulated in the program Netica 2.6. General decision models were designed from the obtained responses, which yielded four major and most influential events in the management of tree cover: 1) pruning event, 2) weed control event, 3) tree planting event, and 4) tree use event. The frequencies allowed us to estimate the probability of each decision and the influence of variables regarding the events for its subsequent modeling and simulation. In addition, in order to further study the process of decision making, scenarios relating to agroecological conditions of the farm, management of the productive unit, and the environment in which the farm operates were proposed. Furthermore, the main constraints to the management and establishment of tree cover were analyzed. The most important event in the management of tree cover is pruning, given its value in obtaining firewood for fuel, and this factor influences the increase of tree cover as living fences in the zone.
Palabras clave : Modeling and simulation; silvopastoral systems; agroforestry systems.