Determination of priority areas for the re-establishment of the forest cover, based on the use of geotecnologies: Una waterched case study, Taubaté, SP / Determinação de áreas prioritárias para o restabelecimento da cobertura florestal apoiada no uso de geotecnologias: estudo de caso da bacia hidrográfica do rio Una em Taubaté, SP

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

08/10/2007

RESUMO

The determination of priority areas for the re-establishment of forest cover in watersheds is directly associated with probability of effective success in forestry project implementation. However, considering analysis complexity and the amount of spatial data necessary to accomplish that goal, state of the art technology tools capable of providing multi-criteria analysis to support decision make are necessary. This research was developed in an area of 476km that corresponds to the Una River basin in the municipality of Taubaté, SP. A multi-criteria analysis was based on continuous classification and paired comparisons using AHP (Analytical Hierarchy Process) techniques, available in the GIS package called SPRING v. 4.3.2 (Georeferenced Information Processing System). A map of priority areas for the reestablishment of forest cover in that watershed was obtained, and results revealed a large area (26.6% of the total watershed area) with extreme priority for forest cover re-establishment. This indicates the urgent need of environmental restoration in this basin. This indicates a strategy improving making decision process in the practical manner toward resource application only on priority areas.

ASSUNTO(S)

restoration geotechnology forest cover ahp bacia hidrográfica geotecnologia floresta nativa florestamento e reflorestamento watershed management ahp technique

ACESSO AO ARTIGO

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