Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/41301 |
Resumo: | The use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate the use of four DEMs obtained over a year to monitor erosion processes in an erosion-degraded area, with occurrence of rill and gully erosions, and its correlation with accumulated rainfall during the studied period. The DEMs of Geomorphic Change Detection (GCD) of horizontal and vertical resolutions of 0.10 and 0.06 m were obtained. It was possible to detect events of erosion and deposition volumes of the order of 2 m3, with a volumetric error of ∼50 %, in rills and gullies in the initial stage denominated R and GS-I, respectively. Events of the order of 100 m3, with a volumetric error around 14 % were found for advanced gullies, a segment denominated GS-II. In the three studied erosion situations, the deposition volume increased with the accumulated rainfall. The segments R and GS-I presented an inverse relationship between erosion volume and accumulated rainfall during the studied period. This behaviour can be explained by the dynamics of the deposition and erosion volumes during the erosion process. In the GS-II segment, erosion and deposition volumes were proportional and a direct relation with the cumulative rainfall over the studied period and a low percentage of volumetric error were found. |
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Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle ImageryGullyUnmanned aerial vehicles (UAVs)Digital elevation modelStructure-from-motionBarrancos - ErosãoVeículos aéreos não tripulados (VANTs)Modelos digitais de elevaçãoÁreas degradadasThe use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate the use of four DEMs obtained over a year to monitor erosion processes in an erosion-degraded area, with occurrence of rill and gully erosions, and its correlation with accumulated rainfall during the studied period. The DEMs of Geomorphic Change Detection (GCD) of horizontal and vertical resolutions of 0.10 and 0.06 m were obtained. It was possible to detect events of erosion and deposition volumes of the order of 2 m3, with a volumetric error of ∼50 %, in rills and gullies in the initial stage denominated R and GS-I, respectively. Events of the order of 100 m3, with a volumetric error around 14 % were found for advanced gullies, a segment denominated GS-II. In the three studied erosion situations, the deposition volume increased with the accumulated rainfall. The segments R and GS-I presented an inverse relationship between erosion volume and accumulated rainfall during the studied period. This behaviour can be explained by the dynamics of the deposition and erosion volumes during the erosion process. In the GS-II segment, erosion and deposition volumes were proportional and a direct relation with the cumulative rainfall over the studied period and a low percentage of volumetric error were found.Sociedade Brasileira de Ciência do Solo2020-06-01T16:46:21Z2020-06-01T16:46:21Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSIQUEIRA JUNIOR, P. et al. Assessing water erosion processes in degraded area using unmanned aerial vehicle imagery. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 43, 2019. Paginação irregular.http://repositorio.ufla.br/jspui/handle/1/41301Revista Brasileira de Ciência do Soloreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessSiqueira Junior, PauloSilva, Marx Leandro NavesCândido, Bernardo MoreiraBatista, Pedro Velloso GomesCuri, NiltonLima, Wellington deQuinton, John NormanAvalos, Fabio Arnaldo Pomareng2020-06-01T16:46:55Zoai:localhost:1/41301Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-06-01T16:46:55Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
title |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
spellingShingle |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery Siqueira Junior, Paulo Gully Unmanned aerial vehicles (UAVs) Digital elevation model Structure-from-motion Barrancos - Erosão Veículos aéreos não tripulados (VANTs) Modelos digitais de elevação Áreas degradadas |
title_short |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
title_full |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
title_fullStr |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
title_full_unstemmed |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
title_sort |
Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery |
author |
Siqueira Junior, Paulo |
author_facet |
Siqueira Junior, Paulo Silva, Marx Leandro Naves Cândido, Bernardo Moreira Batista, Pedro Velloso Gomes Curi, Nilton Lima, Wellington de Quinton, John Norman Avalos, Fabio Arnaldo Pomar |
author_role |
author |
author2 |
Silva, Marx Leandro Naves Cândido, Bernardo Moreira Batista, Pedro Velloso Gomes Curi, Nilton Lima, Wellington de Quinton, John Norman Avalos, Fabio Arnaldo Pomar |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Siqueira Junior, Paulo Silva, Marx Leandro Naves Cândido, Bernardo Moreira Batista, Pedro Velloso Gomes Curi, Nilton Lima, Wellington de Quinton, John Norman Avalos, Fabio Arnaldo Pomar |
dc.subject.por.fl_str_mv |
Gully Unmanned aerial vehicles (UAVs) Digital elevation model Structure-from-motion Barrancos - Erosão Veículos aéreos não tripulados (VANTs) Modelos digitais de elevação Áreas degradadas |
topic |
Gully Unmanned aerial vehicles (UAVs) Digital elevation model Structure-from-motion Barrancos - Erosão Veículos aéreos não tripulados (VANTs) Modelos digitais de elevação Áreas degradadas |
description |
The use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate the use of four DEMs obtained over a year to monitor erosion processes in an erosion-degraded area, with occurrence of rill and gully erosions, and its correlation with accumulated rainfall during the studied period. The DEMs of Geomorphic Change Detection (GCD) of horizontal and vertical resolutions of 0.10 and 0.06 m were obtained. It was possible to detect events of erosion and deposition volumes of the order of 2 m3, with a volumetric error of ∼50 %, in rills and gullies in the initial stage denominated R and GS-I, respectively. Events of the order of 100 m3, with a volumetric error around 14 % were found for advanced gullies, a segment denominated GS-II. In the three studied erosion situations, the deposition volume increased with the accumulated rainfall. The segments R and GS-I presented an inverse relationship between erosion volume and accumulated rainfall during the studied period. This behaviour can be explained by the dynamics of the deposition and erosion volumes during the erosion process. In the GS-II segment, erosion and deposition volumes were proportional and a direct relation with the cumulative rainfall over the studied period and a low percentage of volumetric error were found. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2020-06-01T16:46:21Z 2020-06-01T16:46:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SIQUEIRA JUNIOR, P. et al. Assessing water erosion processes in degraded area using unmanned aerial vehicle imagery. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 43, 2019. Paginação irregular. http://repositorio.ufla.br/jspui/handle/1/41301 |
identifier_str_mv |
SIQUEIRA JUNIOR, P. et al. Assessing water erosion processes in degraded area using unmanned aerial vehicle imagery. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 43, 2019. Paginação irregular. |
url |
http://repositorio.ufla.br/jspui/handle/1/41301 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciência do Solo reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1784549958237552640 |