Planos de manejo florestal proporcionam a manutenção da diversidade do componente lenhoso na caatinga

Abstract

The Caatinga Phytogeographical Domain, known nationally as the Caatinga Biome, represents the largest core of seasonally dry vegetation in Tropical South America with approximately 800,000 km2. The caatinga vegetation has been impacted since European colonization in the Brazilian semi-arid region,a situation that has intensified in recent years. In the search for more sustainable ways of using vegetation, from the 1990s onwards, forest management practices were introduced on several private properties.Through the choice of parameters obtained by carrying out a forest inventory before and after cutting, it was possible to monitor the regeneration of vegetation under forest management, reaching the conclusion, based on the data collected in the present research, that the parameter richness of species is not affected by forest management. The height is reduced, but it is able tore-establish the pre-cut pattern within 10 years. However, the parameters density, abundance and volumetric composition did not reach the same values that were observed before cutting. Therefore, the 10-year cutting cycle was insufficient for the complete regeneration of the vegetation. Thus, the cutting cycle of managed vegetation must have a rotation of 15 years as established in current legislation.