Utilizing discriminant function analysis with a geographical information system to model ecological succession spatially |
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Authors: | KIM LOWELL |
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Institution: | Université Laval, Faculté de foresterie et de géomatique, Local 1327, Pavilion Casault, Cité Universitaire , Ste-Foy, Québec, G1K 7P4, Canada |
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Abstract: | Abstract A raster/quadtree geographical information system (GIS) was established For a 932 ha natural area in central Missouri. The GIS contained map layers depicting vegetative cover from 1939 to 1982, soils, topographic aspect and distance from a forest seed source. Discriminant function analysis was used to quantify and describe ecological succession on the area during this period. The calibration of discriminant functions is discussed, as are the statistical and spatial validations of the model. It was concluded that this approach provides a useful technique to examine long-term temporal phenomena in a spatial context. |
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Keywords: | Optimal path Cell decomposition Digital map |
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