TITLE:
Hydrology and Estimation of Real Erosion in the Patria Nueva Micro-Basin for Five Return Periods
AUTHORS:
Martín Mundo-Molina, José Luis Pérez-Díaz
KEYWORDS:
Erosion, Return Periods, Basins, USLE, Sediment
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.14 No.12,
December
30,
2022
ABSTRACT: This paper will discuss the actual erosion estimation of the Patria Nueva micro basin in tons/ha/year (E), located in Tuxtla Gutiérrez Chiapas, Mexico. We used the universal soil loss equation (USLE), considered one of the best theoretical tools for planning and soil preservation in the USA and other countries. The actual erosion rates were estimated for 5, 20, 50, 100, and 500 years return periods (Rp), with elevated results due to high degrees of anthropogenic alteration of the micro-basin, especially in the last 50 years. High erosion rates generate the following problems: loss of soil, which is unfavorable for plant life, due to the soil being a non-renewable resource, the undermine can never renovate, the hydraulic area in the main channel reduces during the rainy season (when the river overflows). The sediment accumulates at the lower part of the micro-basin along with waste, garbage, and mud.