Proposta de procedimento para avaliação da autossustentabilidade em projetos de restauração florestal

Abstract

This study proposed a method for evaluate the self-sustainability of vegetation established in forest restoration projects in the river Grande basin. The proposed method is based on the hierarchy of principles, criteria, indicators and verifiers. To establish the relative importance of 22 verifiers proposed, and thus determine their weights, we adopted the Hierarchical Analysis Method (HAM). To determine the reference values were adopted nine areas of reference, in twelve studies that considered more relevant and had similar inclusion criteria. Based on these range values, the verifiers were categorized into levels of compliance: compliant, partially compliant and non-compliant, taking notes, 1, 0.7 and 0, respectively. The final score of the vegetation was obtained by adding the scores of verifiers, weighted by these weights. The last stage of the procedure was to categorize them into classes of self-sustainability. Were taken three classes: self-sustaining or restored, in restoration and not restored. To apply the proposed procedure were selected tree reforestation with fifteen years old, previously analyzed and classified as "in restoration". It was observed that it was possible to infer the self-sustainability of the vegetation of the areas assessed from the comparison of these with the reference area.