Encontrados 5 documentos, a visualizar página 1 de 1
Computer-based tools for supporting forest management. The experience and the e...
Borges, J.G.; Nordstrom, E.M.; Garcia-Gonzalo, J.; Hujala, T.; Trasobares, A.Report of Cost Action FP 0804 Forest Management Decision Support Systems (FORSYS) ; Computer-based tools for supporting forest management. The experience and the expertise world-wide answers a call from both the research and the professional communities for a synthesis of current knowledge about the use of computerized tools in forest management planning. According to the aims of the Forest Management Decision...
A decision support system for a multi stakeholder's decision process in a portu...
Garcia-Gonzalo, J.; Palma, J.H.N.; Freire, J.P.A.; Tomé, Margarida; Mateus, R.; Rodriguez, L.C.E.; Bushenkov, V.; Borges, J.G.Aim of study: In this paper, we present a decision support system (DSS) to support decision making where different stakeholders have to generate landscape and forest level strategic plans. We further present an interactive approach that may take advantage of a posteriori preference modelling (i.e. Pareto frontier technique) to facilitate the specification of the levels of achievement of various objectives. Area...
Assessing wildfire occurrence probability in Pinus pinaster Ait. stands in Port...
Marques, S.; Garcia-Gonzalo, J.; Botequim, B.; Ricardo, A.; Borges, J.G.; Tomé, Margarida; Oliveira, M.M.Maritime pine (Pinus pinaster Ait.) is an important conifer from the western Mediterranean Basin extending over 22% of the forest area in Portugal. In the last three decades nearly 4% of Maritime pine area has been burned by wildfires. Yet no wildfire occurrence probability models are available and forest and fire management planning activities are thus carried out mostly independently of each other. This paper...
Assessing impacts of Common Agricultural Policy changes on regional land use
Borjes, P.J; Fragoso, R.; Garcia-Gonzalo, J.; Borges, J.G.; Marques, S.; Lucas, M.R.This paper discusses research aiming at assessing Common Agricultural Policy impacts on agriculture and forestry. For this purpose an approach is developed that includes a linear programming model to estimate the Positive Mathematical Programming production cost function coefficients of current agricultural– forestry activities. It further includes a heuristic — simulated annealing — to generate solutions for e...
A new mixed-integer programming model for harvest scheduling subject to maximum...
Constantino, Miguel; Martins, Isabel; Borges, J.G.Forest ecosystem management often requires spatially explicit planning because the spatial arrangement of harvests has become a critical economic and environmental concern. Recent research on exact methods has addressed both the design and the solution of forest management problems with constraints on the clearcut size, but where simultaneously harvesting two adjacent stands in the same period does not necessar...
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