Relação solo-paisagem-geologia na borda da Bacia do Paraná, município de Cachoeira do Sul - RS

Abstract

Soil plays a fundamental role, both in agriculture and in engineering and mining projects. As a result, there is a significant increase in the need to obtain more relevant and up-to-date information about soil characteristics. To achieve this, there are several techniques, such as the conventional soil mapping method, which can generate sufficient knowledge to meet the crucial needs for soil use and management planning. In Brazil, there is a deficit in soil maps at the semi-detailed and detailed scales, making it essential to conduct surveys at scales of 1:50,000 and 1:25,000 to ensure the country's efficient development. Thus, the study in question aims to relate geological, geomorphological, and soil maps to analyze the soil-landscape model of the Baixo Jacuí Watershed, located at the edge of the Paraná sedimentary basin, more precisely in the Peripheral Depression in contact with the South Rio Grande Shield. This analysis was carried out at the map scale of Rio Grande do Sul and at a semi-detailed scale. To this end, local observations were made for landscape recognition and profile description, soil samples were collected, and physical and chemical analyses were conducted to classify the soils and prepare the map with soil units, transects with toposequences and topographic profiles.