Morphological characteristics of cracks in soil with and without vegetation cover
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agro@mbiente on-line |
Texto Completo: | https://revista.ufrr.br/agroambiente/article/view/7394 |
Resumo: | An assertive understanding of cracks in expansive soils makes their typification a challenge, especially in field conditions. Seeking to overcome such difficulty, digital images have been used to estimate the fractal geometry of surface cracks in soils with and without vegetation in a semi-arid environment. This study was carried out in a cross-section along the main course of a first-order watershed in the Centro Sul region, Ceará State (Brazil). Two treatments comprised soil with and without vegetation cover. Experimental plots were installed to represent the upper, middle, and lower parts of the watershed studied (vegetated and non-vegetated), with an area of 1 m2 and spaced 2 m apart. The following morphometric characteristics of cracks were monitored and evaluated during 38 days, namely: area, weighted average between crack area and its perimeter, weighted average of the fractal dimension area of the cracks, connectivity between cracks and soil moisture. In the soil with and without vegetation, intensity of cracks in the soil had a significant correlation (p ≤ 0.01) with the perimeter, fractal area and crack connection. The intensity of cracks between covered and uncovered plots showed a significant difference (p ≤ 0.01), only in the lower part of the watershed. The middle stretch had higher sand content and differed statistically from the lower stretch for intensity of cracks in the soil. Vegetation influenced the correlation between cracks intensity and their connection, influencing their morphology in the sandy stretch. |
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Morphological characteristics of cracks in soil with and without vegetation coverImage processing. Semi-arid. Vertisol.An assertive understanding of cracks in expansive soils makes their typification a challenge, especially in field conditions. Seeking to overcome such difficulty, digital images have been used to estimate the fractal geometry of surface cracks in soils with and without vegetation in a semi-arid environment. This study was carried out in a cross-section along the main course of a first-order watershed in the Centro Sul region, Ceará State (Brazil). Two treatments comprised soil with and without vegetation cover. Experimental plots were installed to represent the upper, middle, and lower parts of the watershed studied (vegetated and non-vegetated), with an area of 1 m2 and spaced 2 m apart. The following morphometric characteristics of cracks were monitored and evaluated during 38 days, namely: area, weighted average between crack area and its perimeter, weighted average of the fractal dimension area of the cracks, connectivity between cracks and soil moisture. In the soil with and without vegetation, intensity of cracks in the soil had a significant correlation (p ≤ 0.01) with the perimeter, fractal area and crack connection. The intensity of cracks between covered and uncovered plots showed a significant difference (p ≤ 0.01), only in the lower part of the watershed. The middle stretch had higher sand content and differed statistically from the lower stretch for intensity of cracks in the soil. Vegetation influenced the correlation between cracks intensity and their connection, influencing their morphology in the sandy stretch.UFRR2022-12-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revista.ufrr.br/agroambiente/article/view/739410.18227/1982-8470ragro.v17i00.7394AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 16 (2022); 1-15REVISTA AGRO@MBIENTE ON-LINE; Vol. 16 (2022); 1-15REVISTA AGRO@MBIENTE ON-LINE; v. 16 (2022); 1-151982-8470reponame:Agro@mbiente on-lineinstname:Universidade Federal de Roraima (UFRR)instacron:UFRRporhttps://revista.ufrr.br/agroambiente/article/view/7394/3765Copyright (c) 2023 REVISTA AGRO@MBIENTE ON-LINEhttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessCarvalho Ribeiro Filho, Jacques Maia de Andrade, Eunice Makeison Moreira de Sousa, MarcosBandeira Brasil, José Araújo de Quairoz Palácio, Helba 2023-03-01T21:52:49Zoai:oai.revista.ufrr.br:article/7394Revistahttps://revista.ufrr.br/index.php/agroambientePUBhttps://revista.ufrr.br/index.php/agroambiente/oai||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br1982-84701982-8470opendoar:2023-03-01T21:52:49Agro@mbiente on-line - Universidade Federal de Roraima (UFRR)false |
dc.title.none.fl_str_mv |
Morphological characteristics of cracks in soil with and without vegetation cover |
title |
Morphological characteristics of cracks in soil with and without vegetation cover |
spellingShingle |
Morphological characteristics of cracks in soil with and without vegetation cover Carvalho Ribeiro Filho, Jacques Image processing. Semi-arid. Vertisol. |
title_short |
Morphological characteristics of cracks in soil with and without vegetation cover |
title_full |
Morphological characteristics of cracks in soil with and without vegetation cover |
title_fullStr |
Morphological characteristics of cracks in soil with and without vegetation cover |
title_full_unstemmed |
Morphological characteristics of cracks in soil with and without vegetation cover |
title_sort |
Morphological characteristics of cracks in soil with and without vegetation cover |
author |
Carvalho Ribeiro Filho, Jacques |
author_facet |
Carvalho Ribeiro Filho, Jacques Maia de Andrade, Eunice Makeison Moreira de Sousa, Marcos Bandeira Brasil, José Araújo de Quairoz Palácio, Helba |
author_role |
author |
author2 |
Maia de Andrade, Eunice Makeison Moreira de Sousa, Marcos Bandeira Brasil, José Araújo de Quairoz Palácio, Helba |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carvalho Ribeiro Filho, Jacques Maia de Andrade, Eunice Makeison Moreira de Sousa, Marcos Bandeira Brasil, José Araújo de Quairoz Palácio, Helba |
dc.subject.por.fl_str_mv |
Image processing. Semi-arid. Vertisol. |
topic |
Image processing. Semi-arid. Vertisol. |
description |
An assertive understanding of cracks in expansive soils makes their typification a challenge, especially in field conditions. Seeking to overcome such difficulty, digital images have been used to estimate the fractal geometry of surface cracks in soils with and without vegetation in a semi-arid environment. This study was carried out in a cross-section along the main course of a first-order watershed in the Centro Sul region, Ceará State (Brazil). Two treatments comprised soil with and without vegetation cover. Experimental plots were installed to represent the upper, middle, and lower parts of the watershed studied (vegetated and non-vegetated), with an area of 1 m2 and spaced 2 m apart. The following morphometric characteristics of cracks were monitored and evaluated during 38 days, namely: area, weighted average between crack area and its perimeter, weighted average of the fractal dimension area of the cracks, connectivity between cracks and soil moisture. In the soil with and without vegetation, intensity of cracks in the soil had a significant correlation (p ≤ 0.01) with the perimeter, fractal area and crack connection. The intensity of cracks between covered and uncovered plots showed a significant difference (p ≤ 0.01), only in the lower part of the watershed. The middle stretch had higher sand content and differed statistically from the lower stretch for intensity of cracks in the soil. Vegetation influenced the correlation between cracks intensity and their connection, influencing their morphology in the sandy stretch. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-31 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/7394 10.18227/1982-8470ragro.v17i00.7394 |
url |
https://revista.ufrr.br/agroambiente/article/view/7394 |
identifier_str_mv |
10.18227/1982-8470ragro.v17i00.7394 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/7394/3765 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 REVISTA AGRO@MBIENTE ON-LINE https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 REVISTA AGRO@MBIENTE ON-LINE https://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UFRR |
publisher.none.fl_str_mv |
UFRR |
dc.source.none.fl_str_mv |
AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 16 (2022); 1-15 REVISTA AGRO@MBIENTE ON-LINE; Vol. 16 (2022); 1-15 REVISTA AGRO@MBIENTE ON-LINE; v. 16 (2022); 1-15 1982-8470 reponame:Agro@mbiente on-line instname:Universidade Federal de Roraima (UFRR) instacron:UFRR |
instname_str |
Universidade Federal de Roraima (UFRR) |
instacron_str |
UFRR |
institution |
UFRR |
reponame_str |
Agro@mbiente on-line |
collection |
Agro@mbiente on-line |
repository.name.fl_str_mv |
Agro@mbiente on-line - Universidade Federal de Roraima (UFRR) |
repository.mail.fl_str_mv |
||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br |
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1799770041738067968 |