Conflitos Ambientais Em Áreas De Preservação Permanente Na Bacia Hidrográfica Do Rio Paiol, Ibiúna, Sp

Abstract

Areas of permanent preservation have the purpose of protecting the natural environment and should be covered with vegetation, preferably native. The study aimed to identify and quantify the areas of environmental conflict that occur in the Paiol River Watershed, Ibiúna, São Paulo, by geoprocessing techniques. Planialtimetric information was vectorized from topographic maps. The slope was generated from a Digital Terrain Model. The land use and land cover of 2019 was mapped by visual interpretation of an orthophoto from the Vexcel Ultracam sensor of 2010 and Google Earth Pro image consults. It was mapped urban area, field, water body, temporary crop, forest, pasture and reforestation. Areas of permanent preservation were delimited according to the Forest Code (2012) and when their land use was different from forest it was defined as environmental conflict. The procedures were performed in ArcGIS 10.6. About 70% of the study area has anthropic land uses. Of the 130.15 ha of permanent preservation area, 67.28 ha are conflicting (51.70%), mainly by field and temporary crop (31.98% and 12.19% of the total, consecutively), showing that most of permanent preservation areas are not being used as established by current legislation. Planning land use in accordance with current legislation is necessary and effective for the conservation of natural resources; and analyzing if there is conflict between legislation and current land use is a way to contribute to the rational and sustainable use of natural resources.

Análise espacial de uma pequena bacia hidrográfica na Amazônia

“…Nesse sentido, a análise de uma bacia é de grande valor científico, por ser um ponto de partida para entender a rede hidrológica e toda a dinâmica ligada a ela, desde seu processamento morfométrico até o monitoramento temporal do uso e ocupação do solo (Neto et al, 2019). Ferramentas de processamento no programa ArcMap 10.5, permitem avaliar diversas variáveis ambientais que ajudam no monitoramento e planejamento de áreas ambientais, assim como a integração de diversos dados afim de gerar mapeamentos derivados (Costa et al, 2020).…”