Spatialized Model of Susceptibility to Erosion Risk in a Energy Transmission Line in the Cerrado Biome

• Published in: Revista brasileira de geografia física Vol. 16; no. 4; pp. 2119 - 2132
• Main Authors: Cucco Dalri, Julia, Oliveira, Francisco Henrique de, Bertol, Ildegardis, Suarez Fernandez, Hypólito, Gerente, Jéssica, Gomes Junior, Francisco Caruso, Providelo, Lucas Antônio, Marchiori, Guilherme
• Format: Journal Article
• Language: English
• Published: 17.09.2023
• ISSN: 1984-2295; 1984-2295
• DOI: 10.26848/rbgf.v16.4.p2119-2132

The installation of Transmission Lines (TL) provokes disturbances in the environment, which reacts in different ways. The suppression of vegetation, even when limited to what is necessary for the execution of the project, may cause erosive processes. Spatialized inputs have made the monitoring of large portions of land viable. Data from the GPM (Global Precipitation Measurement) constellation allows access to rainfall data even in areas which do not have pluviometric stations. Also by satellite, the landscape can be represented with SRTM (Shuttle Radar Topography Mission) images. Similarly, maps of soil erodibility and land use, necessary together so that the diagnostics methodology on the risk of erosion can be obtained. Therefore, a logic is methodologically developed in which freely obtained input data follow a conceptual model, which defines the variables and their relationships in the potential issue’s context, while having replication accessibility in mind. Of the 43 gaps present in the pilot tracing located in Minas Gerais, Brazil, four of them received the “likely” risk of erosion classification in a period without record of any meaningful rainfall. The methodology mirrors an evaluation which increases the risk as long as the rains occur.