Análise das mudanças das áreas ocupadas pelas florestas no município de Campo Mourão - PR entre 1973 e 2013

Abstract

Forests have an important significance in the nature, giving conditions for survival of wildlife, protection of soil and water resources consequently. The colonization process, national or regional, devastated natural forests, both for occupation and as use of wood. Campo Mourão suffered the loss of part of tree cover since their occupation in 1903. To realize analysis of how the dynamics of the forests along of years occurs, we have tools as Geographic Information System, technical of GIS and indices vegetation as NDVI. Using these tools, thematic maps were created of tree cover of Campo Mourão between 1984 and 2013. Based on these, was possible to identify how these areas have increased or decreased, by analyzing with the history of the city. Over three decades, forests areas in Campo Mourão gained importance, reaching 12153,87 hectares. These tools were effective for this type of multitemporal study and, if combined with fieldwork, results can be even more precise.