Análise da Relação entre Declividade e Uso da Terra na Área Correspondente à Folha Pitimbu-Litoral Sul da Paraíba (Analysis of the Declivity and Land Use Relation in the Area Correspondent to Pitimbu Leaf-South Coast of Paraíba)
DOI:
https://doi.org/10.26848/rbgf.v5i1.232786Keywords:
Ocupação e uso da terra, Pitimbu, Formação Barreiras, Tabuleiros LitorâneosAbstract
Diante do atual quadro de degradação ambiental decorrente do processo de ocupação do Litoral Paraibano, o desenvolvimento de estudos detalhados sobre o meio físico e o uso da terra torna-se essencial. Considerando isso, a presente pesquisa tem como objetivo identificar as formas de ocupação e uso da terra atual e sua relação com a declividade, na área correspondente a porção emersa da folha Pitimbu, localizada no litoral sul do estado da Paraíba. A área encontra-se inserida no domínio geomorfológico dos Tabuleiros Litorâneos, esculpidos, predominantemente, sobre os sedimentos mal consolidados da Formação Barreiras e, na Baixada Litorânea, constituída por depósitos Quaternários recentes. Com base na carta topográfica Pitimbu, escala 1:25.000, com equidistância das curvas de nível de 10 m e uso do Software SPRING 5.1.7, foi elaborada a carta clinográfica, e a interpretação de imagens do Satélite CBERS-2B possibilitou confeccionar a carta de ocupação e uso da terra. A partir dos resultados dessa pesquisa, constatou-se que as formas de ocupação e uso da terra na área, muitas vezes, acontecem em desacordo com a legislação vigente, provocando desequilíbrios ambientais, principalmente no tocante ao relevo e aos seus decorrentes processos.
Palavras-chave: Ocupação e uso da terra, Pitimbu, Formação Barreiras, Tabuleiros Litorâneos.
Analysis of the Declivity and Land Use Relation in the Area Correspondent to Pitimbu Leaf-South Coast of Paraíba
ABSTRACT
Due to the present environmental degradation as a result of the process of occupation in the Paraibano Coast, it is essential to develop detailed studies about the physical environment and the land use. Considering this fact, this research aims at identifying the forms of occupation and current land use and its relation with the declivity in the area corresponding to the onshore portion of Pitimbu Leaf, located on the southern coast of the State of Paraíba. The area is inserted in the geomorphologic field of the Coastal Tableland, which are predominantly carved on poorly consolidated sediments of the Barreiras Formation and on the Coastal Lowlands, made of recent Quaternary deposits. Based on Pitimbu topographic map, scale 1:25,000, with 10m equidistance interval of the contour-lines, and the aid of Software SPRING 5.1.7, the clinographic map was elaborated and the interpretation of the images from CBERS-2B satellite made it possible to elaborate the land occupation and use map. It was observed that the forms of occupation and land use in the area usually occur at odds with the current legislation, causing environmental imbalances, mainly with regards to the relief and its resulting processes.
Key words: Land occupation and use, Pitimbu, Barreiras Formation, Coastal Tablelands.
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Copyright (c) 2012 Marquilene Silva Santos, Gilvonete Maria Araujo Freitas, Max Furrier
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