MAPEAMENTO DA VEGETAÇÃO NATIVA ORIGINAL EM ÁREAS ANTROPIZADAS NO ESTADO DE GOIÁS E DISTRITO FEDERAL UTILIZANDO GEOESTATÍSTICA

Abstract

The great diversity of animal species and plants is associated with the environment diversity. While the Amazon or Atlantic Forest vertical stratification provides many opportunities for species establishment, in Cerrado the spatial heterogeneity seems to be a determining factor for the occurrence of a varied number of species. The currently computational resources available promote significant gains for geographical research. This study aimed to evaluate geostatistics potential to elaborate an original native vegetation map of Goias State and of the Federal District. To understand the spatial variation, the vegetation variable was analyzed along with three others (soil, altitude, and annual precipitation). The Medium Error Standard values obtained in the Cross Validation Prediction Error and in the Validation were low. The spherical model and the cokriging interpolator demonstrated good results in the prediction process. The biggest prediction errors are situated at the edges of the study area and/or close to areas with lower point density related to the native vegetation (e.g. South and Southeast Goias) or with lack of information (e.g. Atlantic Forest biome portion in Goias). Key