HYDRAULIC SOIL DYNAMICS OF THE SPARSE CERRADO PHYSIOGNOMY IN CHAPADÃO DO DIAMANTE - SERRA DA CANASTRA (MG)

DINÁMICA HÍDRICA DEL SUELO DE LA FITOFISONOMÍA DE CERRADO RALO EN CHAPADÃO DO DIAMANTE - SERRA DA CANASTRA (MG)

Abstract

The Cerrado is characterized as an important Brazilian biome, forming strategic hydrographic basins within its territory that are significant both nationally and internationally. Despite its importance, the biome has been increasingly impacted by anthropogenic activities. In this context, this study aims to analyze and understand the physical-hydraulic characteristics of the soil in a sparse Cerrado physiognomy located in the Chapadão do Diamante (Serra da Canastra-MG), providing the necessary foundation for the assessment and development of future management strategies for similar areas. For field data prospecting, a rain simulator and a concentric ring infiltrometer were used. The results demonstrated a high infiltration capacity in the study area, with no significant surface runoff even under high-intensity precipitation (57.35 mm), revealing high values of basic infiltration velocity (BIV) at 626.56 mm/h. Overall, these values are associated with the dynamics of landscape elements, emphasizing the importance of biological processes, such as the role of vegetation and soil fauna, in modulating the soil's ability to retain, infiltrate, and store water.

Keywords:
Water Infiltration; Rain Simulator; Concentric Ring Infiltrometer