Using a Geographic Information System to Study a Regional Wood Procurement Problem
A geographic information system was used to develop a spatial pulpwood procurement modeling technique with northwestern Louisiana as an example. Overlays of spatial features were created from public information or were developed from questionnaires, regression analysis, and simulation. Manipulation of these layers provided inferences about resource location and availability. This information aided in determining current competition for stumpage and in relocating wood concentration yards to areas of less competition. The overlay structure portrayed the current total pulpwood demand and supply picture for the study region and was adjusted to forecast future market scenarios. Three demand levels were differentiated. The effect of moving three selected woodyards within the study region was evaluated. A heuristic evaluation of key wood procurement factors included area of low demand, percentage of removals to growth, parish ranking of total growing stock per ha, and percentage of NIPF ownership. New woodyard locations were selected based on wood procurement factors, highway network, urban area location, and location of nontraversable water bodies that would impede truck movement. Simulated relocations reduced the total area of high demand by 6.4% and increased the low demand areas by 44.0%. The relocation of these woodyards could reduce wood procurement costs for those woodyards remaining in what was originally the high demand area in the central portion of the study region. Also, the potential problem of overcutting in two parishes may be reduced while increasing removals from four northwestern parishes that had approximately 50% or less of removals to growth. Limitations of the approach are discussed as are the difficulties encountered in gathering spatial data for the analysis. For. Sci. 36(6):1614-1631.
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Document Type: Journal Article
Affiliations: Professor, Extension Forest Resources Department, The University of Georgia Cooperative Extension Service, Tifton, GA 31794
Publication date: 1991-12-01
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