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Este trabalho objetivou identificar as principais atividades que estao causando degradacao ambiental e elaborar mapas tematicos que retratem a evolucao espaco-temporal dessa degradacao no entorno da bacia hidraulica do acude Manoel Marcionilo para os anos de 1996 e 2010, atraves de analises de imagens orbitais do Landsat-5. As imagens utilizadas neste trabalho foram adquiridas a partir do catalogo de imagens do INPE, as imagens TM Landsat-5 selecionadas foram com data de passagem de 11/02/1996 e 24/05/2010. O sistema utilizado para o processamento de informacoes georreferenciadas foi o SPRING. Pode-se observar que a quantidade de areas de solo exposto e/ou vegetacao rala aumentaram significativamente entre 1996 e 2010. As principais atividades que aumentaram a degradacao ambiental foram: agropecuaria, desmatamentos para retirar lenha para utilizar no cozimento de alimentos, para fabricar telhas/tijolos e para implantar loteamentos, construcao de currais e a grande densidade demografica, essas atividades tem provocado perdas de biodiversidade, desencadeado processos erosivos e provocado um grande assoreamento no acude. Palavras - chave: Degradacao ambiental; Vegetacao rala; Solo exposto. Environmental Degradation in the Surrounding Basin Hydraulic Weir Manoel Marcionilo, Taperoa-PB ABSTRACT This study aimed to identify the main activities that are causing environmental degradation and produce thematic maps that depict the evolution of space-time degradation in the basin around Manoel Marcionilo hydraulic reservoir for the years 1996 and 2010, through analysis images of Landsat-5 satellite. The images used in this study were acquired from the catalog of images from INPE, the Landsat-5 TM images were selected with a date of passage of 11/02/1996 and 24/05/2010. The system for processing information georeferenced was SPRING. It was observed that the amount of exposed soil areas and / or sparse vegetation increased significantly between 1996 and 2010. The main activities that increased environmental degradation were: agriculture, deforestation to remove wood for use in cooking, to manufacture tiles / bricks and deploy lots, building corrals and densely populated, these activities have caused biodiversity losses, triggered caused erosion and siltation in a big pond. Keywords: Environmental degradation; Sparse vegetation; Exposed soil.

revista brasileira de geografia física

Degradação Ambiental no Entorno da Bacia Hidráulica do Açude Manoel Marcionilo, Taperoá-PB (Environmental Degradation in the Surrounding Basin Hydraulic Weir Manoel Marcionilo, Taperoá-PB)