Utilización de un S.I.G. para la determinación de modelos territoriales

Abstract

The investigation axes of the Agroforestry Engineering Department of the Santiago of Compostela University, attempt to give responses to problems outlined in the current rural means. Concretely, the axe developed by the Laboratory of Projects and Rural Planning, of said department, is centered in rural Projects and Planning. The "rural system" undertake many more sectors in addition to the agrarian, and rural development new policies intend that this will be integral, that take advantage of all the potentials that offers the rural means and that it will be capable of attending the demands required by the society. Thus, it is necessary to know which is the current state and trends of the different subsystems that constitute a rural territory, before any proposition of goals to achieve. This investigation project is centered in the Municipality of Trabada (Lugo) and tries to characterize this territorial system. Through aerial photographs is analyzed the land uses evolution, all long the time period elapsed between the fifty’s decade and the current time. The photo-interpretation permits to obtain a vision of all the territory and to get information about socioeconomic activities, infrastructures, pressure on the environment,… Once done the diagnosis of the current situation, are proposed a series of performances to obtain an objective territorial model. When are proposed the planning performances, the problem should be approached with a systemic perspective, considering all the subsystems that compose this territory, and using criteria of environmental and socioeconomic nature. The engaged tool are the Geographic Information Systems (GIS). These are computer systems that permit to store and to process georeferenced data. The information determined through photo-interpretation is digitized to define the current territorial model, and through the analytical functions of a GIS, it is proposed a territorial model that brand as an objective to achieve.