Evolutionary Cartography of the Nhama neighborhood gully in Saurimo, Lunda Sul, Angola
Abstract
The objective of this study was to determine the erosive behavior of the gully in the Nhama neighborhood, from its formation to the present time, using satellite images. We also sought to obtain a map of the erosive behavior and to obtain the annual average of erosion in the study area. For this purpose, we first made a research on the subject of the investigation in the main scientific magazines, scientific articles, books, monographs, etc. A set of specialized computer programs (Google Earth Pro, QGIS 3.28, Surfer 14, SAS Planet) was used to create maps of gully advance in the study area, as well as to obtain data on the extent of the gully and erosion according to the years studied. It was possible to differentiate three sectors according to the directions of erosion in the area, which have well differentiated behaviors to show the erosion developed for equal periods of time. It was also possible to project how the gully could behave in the coming years, provided that no measures are taken to contain the advance of the gully in the Nhama neighborhood, which would cause numerous economic and social losses
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References
Álvaro Gómez Gutiérrez, Susanne Schnabel, Francisco Lavado Contador. Procesos, factores y consecuencias de la erosión por cárcavas; trabajos desarrollados en la península Ibérica. Boletin de la asociación de Geógrafos Españoles, 2011.
Artemi Cerdá. La erosión del suelo y sus tasas en España. Ecosistemas 10(3). Recuperado a partir de https://www.revistaecosistema.net/index.php/ecosistemas/article/view/268, 2001.
Estela Nadal-Romero, D Reguéz-Muñoz, Carlos Enrique Martí Bono, M P Serrano Muela. Dinámica estacional de los procesos de meteorización en cárcavas de pirineo central. Asociación Española para el estudio del Cuaternario, 2006.
Hernan Burbano Orjela. El carbono orgánico del suelo y su papel frente al cambio climático. Revista de ciencias agrícolas (35), 82-96, 2018.
J C González-Hidalgo, M del Luis Arrillaga, J L Peña Monné. Los eventos extremos de precipitación, la variabilidad del clima y la erosión del suelo. Reflexiones entre el cambio del clima en los sistemas mediterráneos. Revista C&G 19 (1-2), 49-62, 2005.
M. Bravo-Espinosa, ME. Mendoza, L. Medina-Orozco, T. Sáenz-Reyes. Características y control de las cárcavas. Terra Latinoamerica 28 (3), 281-285, 2010.
Maria do Rosário da Silva Franco. Formação de ravinas: significância para a perda de solo por erosão hídrica, 2015.
TFC-Avaliação da erosão na região sudoeste da cidade de Saurimo, 2021.
Yolanda Canton Castilla. Efectos hidrológicos y morfológicos de la cubierta y propiedades de suelo en paisaje de cárcavas. Universidad de Almería. Tesis de doctorado, 1999.
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