Análise da estrutura da paisagem de um remanescente de floresta com Araucária, Paraná, Brasil

摘要

The objective of this study was to analyze the landscape structure of Lageado Grande Farm (LGF), an area of 3,136.32 ha located in General Carneiro, Palmas, State of Tocantins, and Bituruna, in the center-southern region of the State of Paraná. The analysis was based on the landscape metrics of Fragstats 3.3 software by using Arc Map 9.2 for the calculation of the proportion of the landscape connecting areas. The analysis showed that LGF had a predominantly forest soil cover matrix with native species; overall, the fragments were rectangular, that is, they were more subjected to border effects; there was a reduction of more than half of the original area of the farm, when border effect is considered, and the same class fragments were close to each other, favoring the structural connection of the landscape. The native forest fragments, even extensively and exploited, because of its forest continuity, can be considered areas of high value for biodiversity preservation.