VEREDAS IN THE BOM JARDIM RIVER BASIN: ORIGIN, TYPOLOGIES AND TOPOGRAPHIC AND MORPHOLOGICAL CHARACTERIZATION

Abstract

In the central plateau region, interior of Brazil, veredas are subsystems typical of landscapes of the Cerrado domain. They are wetlands, occurring in large quantities in the Bom Jardim river basin, Triângulo Mineiro-MG, an area responsible for production of water for public supply in the city of Uberlândia. In this basin there are some vereda typologies that can be grouped and classified by their correlations between relief, lithology and soils. In order to perform such grouping, fieldworks were carried out to identify the physical characteristics, typology and interpretation of their origin in the landscape. A topographic and morphological profile was also developed to characterize a cross-section in the valley-floor, complementing this analysis. Results of the correlations were identified as follows: In the higher areas of the basin with flat relief, soils of clayey texture and occurrence of Cenozoic Coverage is where the floodplain and on level surface veredas occur. In areas of flat/undulating relief, sandstones of the Bauru Group and soils of medium texture appear other types, including terrace and hillside veredas.