ASPECTOS GEOMORFOPEDOLÓGICOS DE UMA VERTENTE EM ÁREA DE BASALTO NO MUNICÍPIO DE GUARAPUAVA - PR (geomorphopedological hillslope aspects on the basalt area in Guarapuava – PR)
Abstract
A escultura da topografia da região de Guarapuava está subordinada aos estratos das rochas eruptivas. O objetivo deste ensaio foi caracterizar alguns aspectos geomorfológicos, hidrológicos e pedológicos de uma vertente representativa esculpida em rocha basáltica na bacia do Rio Guabiroba (Guarapuava). A partir da caracterização geomorfopedológica buscou-se, também, entender qualitativamente as inter-relações atuais entre: formas, materiais e processos, que resulta num todo contínuo formado pelo sistema vertente. Concluiu-se que as características geomorfopedológicas e hidrológicas foram variáveis ao longo da vertente. Já que, a vertente analisada apresenta setores bem definidos (degraus) que marcam os níveis litológicos (estrato) das rochas eruptivas básicas. Essa estruturação cria descontinuidade na energia potencial e hidráulica no sistema vertente, por extensão, influencia no arranjo das formas, dos materiais e dos processos. Essas características devem ser consideradas quando de sua ocupação para fins agropecuários, visto que cada setor apresenta dinâmica e aptidão distinta.
Palavras-chave: basalto, vertente, solo, processo
ABSTRACT
The Guarapuava region topography is subordinated due to eruptives rocks stratus. This essay sought to characterize some geomorphologic, hydrologic and pedologic aspects; regarding to a representative hillslope sculptured on the basaltic rock. Also, it was attempted to understand qualitatively the actual inter-relations between: forms, materials and processes, which result on the hillslope system. The study area is located at the Guabiroba watershed (Guarapuava). The geomorphopedologic and hydrologic characteristics were variable throughout the hillslope. The hillslope displays well-defined sectors (steps) that correspond to the basaltic rocks levels (stratus). These characteristics create discontinuity on the potential and hydraulic energy throughout hillslope system; consequently, it reflects on the forms, materials and processes arrangement. These characteristics must be considered what time of land occupation for agricultural proposal; since each sector display dynamics and distinct land use capacity.
Key words: basaltic, hillslope, soil, process
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