Proposta para o uso e manejo sustentável da bacia hidrográfica do Ribeirão Guaratinguetá, SP
Data
2011-03-04
Autores
Ferreira, Mariana Cassiano [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
Este estudo faz parte de um amplo projeto, que tem como objetivo a revitalização da bacia hidrográfica do ribeirão Guaratinguetá, desenvolvido pelo Departamento de Engenharia Civil da FEG/UNESP, em parceria com a Prefeitura Municipal de Guaratinguetá. O ribeirão Guaratinguetá é o manancial de abastecimento do município e nos últimos anos vem apresentando graves problemas ambientais, como processos erosivos em suas margens, que causam assoreamento, enchentes e decréscimo da qualidade da água, resultantes, principalmente, do uso e manejo inadequados do solo. Diante deste cenário, esse estudo teve como objetivo caracterizar os aspectos ambientais do meio físico, delimitar as áreas de preservação permanente (APPs), determinar a capacidade de uso das terras e propor a adequação do uso das terras e o macrozoneamento desta bacia hidrográfica, onde se destacam as atividades agropecuárias. Para isso, utilizaram-se técnicas de geoprocessamento, empregando-se o software ArcGIS® versão 9.2 do Sistema de informações Geográficas (SIG). Verificou-se que o ribeirão Guaratinguetá possui formas complexas de drenagem, com superposição de anastomosamento e meandramento. As APPs cobrem 17,9% da área total da bacia, dos quais 56,2% estão sendo utilizados por atividades agropecuárias, que não atendem a legislação vigente. Considerando a capacidade de uso das terras, a bacia apresenta potencial agrícola, sendo que cerca de 63,3% de sua área pertence aos grupos A e B de capacidade de uso, que incluem as classes II, III, IV de terras aptas aos cultivos agrícolas; classes V, VI e VII, que são terras aptas às pastagens e à silvicultura e, em alguns casos com problemas para a conservação das terras, necessitando de práticas especiais de manejo e 36,7% de sua área pertence ao grupo C e classe VIII, de terras impróprias para qualquer tipo de uso...
This study is part of a larger project, which aims to revitalize the strem basin Guaratinguetá, developed by the Department of Civil Engineering, FEG/UNESP, in partnership with the Prefeitura de Guaratinguetá. The stream Guaratinguetá is the source of supply for the city and in recent years she has had serious environmental problems such as erosion along its banks, causing siltation, flooding and decreased water quality, resulting mainly from inappropriate use and management of soil. Against this backdrop, this study aimed to characterize the environmental aspects of the environment, defining the permanent preservation areas (APPs), ending the ability of land use and suggest the appropriateness of land use and macro-zoning of the watershed where stand out agricultural activities. For this, we used GIS techniques, using the software ArcGIS® version 9.2 of the Geographic Information System (GIS). It was found that the stream has Guaratinguetá complex forms of drainage, with superposition of anastomoses and meandering. The APPs cover 17.9% of total catchment are being used by agricultural activities, which do not meet current legislation. Considering the ability of land use, the basin has potential agricultural, with about 63.3% of its area belongs to groups A and B use capacibility, including the Class II, III and IV of land suitable for cultivation agricultural land classes V, VI and VII, which is land suitable for forestry and in some cases with concern for the conservation of land, requiring special management practices and 36.7% of its area bolongs to group C and Class VIII land unfit for any type of use and reserved for the preservation of flora and fauna. The macrozoning agri-environmental indicated that 37.9% of the basin area has agricultural capacibility, while 45,2% is occupied by land used for conservation, leaving 14.9% for use... (Complete abstract click electronic access below)
This study is part of a larger project, which aims to revitalize the strem basin Guaratinguetá, developed by the Department of Civil Engineering, FEG/UNESP, in partnership with the Prefeitura de Guaratinguetá. The stream Guaratinguetá is the source of supply for the city and in recent years she has had serious environmental problems such as erosion along its banks, causing siltation, flooding and decreased water quality, resulting mainly from inappropriate use and management of soil. Against this backdrop, this study aimed to characterize the environmental aspects of the environment, defining the permanent preservation areas (APPs), ending the ability of land use and suggest the appropriateness of land use and macro-zoning of the watershed where stand out agricultural activities. For this, we used GIS techniques, using the software ArcGIS® version 9.2 of the Geographic Information System (GIS). It was found that the stream has Guaratinguetá complex forms of drainage, with superposition of anastomoses and meandering. The APPs cover 17.9% of total catchment are being used by agricultural activities, which do not meet current legislation. Considering the ability of land use, the basin has potential agricultural, with about 63.3% of its area belongs to groups A and B use capacibility, including the Class II, III and IV of land suitable for cultivation agricultural land classes V, VI and VII, which is land suitable for forestry and in some cases with concern for the conservation of land, requiring special management practices and 36.7% of its area bolongs to group C and Class VIII land unfit for any type of use and reserved for the preservation of flora and fauna. The macrozoning agri-environmental indicated that 37.9% of the basin area has agricultural capacibility, while 45,2% is occupied by land used for conservation, leaving 14.9% for use... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Desenvolvimento sustentável, Política ambiental, Bacias hidrograficas, Sustainable management
Como citar
FERREIRA, Mariana Cassiano. Proposta para o uso e manejo sustentável da bacia hidrográfica do Ribeirão Guaratinguetá, SP. 2011. 109 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Engenharia, 2011.