Atlantic Forest Fragmentation Analysis and Landscape Restoration Management Scenarios

Abstract

The goals of this research were to analyze the fragmentation of the Atlantic Forest and to create landscape management scenarios for the municipality of Carmo de Minas, MG, Brazil. We used landscape metrics to analyze the fragmentation process of the study area, which was historically exploited for agropastoral activities. Future scenarios were modeled to represent the potential restoration of the environment based on the behavior of the natural vegetation units. The natural vegetation in the study area is highly fragmented, and the environmental integrity of its remnants is severely threatened. The management scenarios showed how the restored natural units behave in the landscape as well as the isolation and connectivity between them.Using these models, future dynamics of the landscape can be predicted. Two important actions for the conservation of the remaining natural vegetation were identified: the maintenance of secondary forest and the restoration of permanent preservation areas.

Fauna De Formigas Em Áreas De Preservação Permanente De Usina Hidroelétrica

“…A biodiversidade brasileira é uma das maiores do mundo graças à complexidade de habitat oferecida pelos seus biomas (RIBAS et al, 2012a). A fragmentação resulta de um processo histórico de uso do solo desde o período colonial e representa uma das principais ameaças à conservação da diversidade biológica da Mata Atlântica (GALINDO-LEAL;CÂMARA, 2003;ZANELLA et al, 2012) e decorre de atividades como a agricultura, pecuária, instalações industriais, produção de energia e urbanização. Estas atividades são conhecidas pelo impacto que causam sobre a biodiversidade (GARDNER, 2010) ao alterarem componentes abióticos como a temperatura e umidade local e homogeneizarem as comunidades de organismos (FREIRE et al, 2012).…”

Adequação ambiental de uma microbacia hidrográfica com base no código florestal brasileiro

“…Nesse caso, além do aumento de área, seria maior o número de fragmentos florestais, que passariam de 35 para 38 fragmentos (Tabela 2). Junto ao incremento de área, geralmente ocorre à redução no número de remanescentes florestais, conforme relatado por Zanella et al (2012) devido à fusão de fragmentos. No entanto, o mesmo não foi observado nesse estudo, devido à distância entre os remanescentes pré-existentes na região.…”

Landscape Structure at Different Altitudes in Dry Areas

“…Given this fact, the analysis and interpretation of the landscape structure are the first steps to comprehend spatially the region in a macro manner and generate information for future research and interventions. In this way, Landscape Ecology seeks to understand the structural and functional changes caused by human beings, to know and monitor the use of land and natural resources, presenting alternatives to reconcile farming and conservation (Zanella et al, 2012), considering the spatial interactions between cultural and natural units, thus including man in his system of analysis (Metzger, 2001). In order to answer questions, such as the degree of isolation between the fragments and the level of landscape shredding, it is necessary to quantify this structure, using metrics or landscape indexes, which present an analysis based on quick and objective answers.…”