Erosive Indices of Amparo in São Francisco – Sergipe, Brazil Related to the Phenomena El Niño La Niña

Abstract— Erosion is originally from the Latin, which means to corrode and, in a comprehensive way, can be considered a set of natural processes that promote the alteration of landscapes through degradation, wear and transport from one point to another of materials on the earth's surface through agents erosive. The objective is to evaluate the erosive index for the municipality of Amparo de São Francisco – Sergipe, relating them to the El Niño and La Niña phenomena. The calculation of pluvial and erosive anomalies was used, generating their respective graphs for the area under study coupled with the extreme events of large scale El Niño and La Niña to see the erosive contributions of the studied area. Erosion calculations were performed using the formulation developed by França (2021) for the study area. The rainfall erosivity indices of anomalies in the study area, taking into account the El Niño and La Niña periods, is a relevant factor for decision makers on the most adequate soil management practices, aiming at the sustainability of exploration for projects farming and fertile soil management