The structure of an earth-mound field of the Brazilian Savanna

Author(s)

Sales, Jepherson Correia ^[1] ; Bueno, Guilherme Taitson ^[2] ; Rosolen, Vania ^[3] ; Ferreira, Manuel Eduardo ^[2] ; Furlan, Lucas Moreira ^[3]

Affiliation

^[1] Fed Inst Educ Sci & Technol Mato Grosso, Km 04, Lote 471, BR-78520000 Guaranta Do Norte, MG - Brazil

^[2] Fed Univ Goias UFG, Socioenvironm Studies Inst IESA, Av Esperanca S-N, BR-74690900 Goiania, Go - Brazil

^[3] Sao Paulo State Univ UNESP, Geosci & Exact Sci Inst IGCE, Av 24A, 1515 Bela Vista, CP 178, BR-13506900 Rio Claro, SP - Brazil

• Document type: Journal article
• Source: Geomorphology; v. 386, AUG 1 2021.
• Web of Science Citations: 0

Abstract

The campos de murundus (literally \& ldquo;mound fields \& rdquo;) are intriguing landscapes composed of earth-mounds. These microreliefs occur in transition areas between the plateau and hydromorphic areas of the Brazilian Savanna. Several studies have analyzed the morphology of murundus to understand its genesis. However, the pattern of spatial distribution of these mounds still needs detailed analyses. This study aims to analyze the structural and morphometric characteristics of a mound field and to raise considerations about the genesis of the studied murundus field. The research was conducted using a high-precision unmanned aerial vehicle (UAV) and images from orbital satellites. Spectral and morphometric data of the study area were manipulated in a Geographic Information System (GIS) environment and analyzed using descriptive and clustering techniques. The results show that the mound field presents an ordered distribution of the earth-mounds. (c) 2021 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 17/14168-1 - Soil-landscape, caracterization of the phases organo-metallic and prospection of refractory clay in the Ferralsol-Gleysol cover (Western of Minas Gerais State).
• Grantee: Vania Silvia Rosolen
• Support Opportunities: Regular Research Grants