Spatial determinants of Atlantic Forest loss and recovery in Brazil

Autor(es)

Molin, Paulo G. ; Gergel, Sarah E. ; Soares-Filho, Britaldo S. ; Ferraz, Silvio F. B.

• Tipo de documento: Artigo Científico
• Fonte: LANDSCAPE ECOLOGY; v. 32, n. 4, p. 857-870, APR 2017.
• Citações Web of Science: 12

Resumo

Context Despite continued forest cover losses in many parts of the world, Atlantic Forest, one of the largest of the Americas, is increasing in some locations. Economic factors are suggested as causes of forest gain, while enforcement has reduced deforestation. Objectives We examine three aspects of this issue: the relative importance of biophysical versus anthropogenic factors in driving forest dynamics; role of forest mean patch age influencing areas targeted for losses; and what future forest mean patch age mosaic we can expect (more forest cover and full forest maturity?). Methods Three land cover maps from 1990, 2000 and 2010, were used in the study. We selected six biophysical and six anthropogenic spatial determinants to analyze by means of weights of evidence, using Dinamica software. Results Results show that forest regrowth is influenced by multiple factors, working in synergy. Biophysical variables are related to forest gain while anthropogenic are associated with loss. Clear patterns of regrowth on pasture and sugarcane plantations occurred, especially near rivers and forest patches, on steeper slopes and with sufficient rainfall. Forest loss has targeted both older and newer forests. Future projections reveal forest gain in a slow pace, followed by specific ecosystem service losses, due to continuous trends of older mature forest loss. Conclusions Regrowth is linked to land abandonment, and to neighboring environmental conditions. It is important to question which mechanisms will guarantee and potentiate new regrowth, thus contributing to landscape restoration and reestablishment of ecosystem services in the Atlantic Forest. (AU)

• Processo FAPESP: 10/19670-8 - Modelagem da dinâmica de vegetação nativa na Bacia do Rio Piracicaba e seus efeitos na oferta de serviços ecossistêmicos
• Beneficiário: Paulo Guilherme Molin
• Modalidade de apoio: Bolsas no Brasil - Doutorado