Using GIS to measure changes in the temporal and spatial dynamics of forestland: experiences from north-west Spain |
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| Authors: | Marey Perez MF; Rodriguez Vicente V; Crecente Maseda R |
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| Institution: | Department of Agroforestry Engineering, University of Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain |
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| Abstract: | Forestry variables are usually calculated at a forest managementunit scale. However, a region's forestry sector is affectedby various other factors that interact over space and time,many of which are not directly associated to silvicultural activitiesbut nonetheless play an important part in its development froma socio-economic or environmental point of view. To understanda region's forestry dynamics, and especially to predict itsfuture tendencies, we must include all the necessary variablesin a single database, calculated for spatial units that arestable over time and adequate for planning purposes. In ourstudy, we developed a Forest Geographic Information System forGalicia called ‘SIFGa’. We used it to examine 310variables describing the environment, population tendencies,land tenure and forest management in the Spanish autonomousregion of Galicia, at both council and parish levels. Resultsreveal the connections between our variables, which reflectthe changes the regional forestry sector has experienced inthe past, and explain its current situation. They also confirmthe heterogeneity of forestry in the area and the need to adaptforest-planning strategies to each study unit, as well as tothe entire region. |
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