Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Geografia (Londrina) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/12722 |
Resumo: | The vulnerability landscape of loss of soil is understood as triggered ruptures by the actions of society in nature, characterizing thus a new organization of phenomena and dynamics in spatial forms that materialize in the landscape. The objective of this article is define the vulnerability of forms of terrain loss of soil, to evaluate the morphological characteristics of vertical and horizontal curvatures of the slopes and forms of terrain. Thus, from the analysis of the slopes established a relationship direct with erosive processes. We used geomorphometric data derived from processing images made in SRTM (Shuttle Radar Topography Mission) Project TOPODATA - INPE, as plan curvature, profile curvature and form of the terrain. Therefore, to define the classes of vulnerability landscape loss of soil, was evaluated that the water flows concentrate and increase the downslope, which was attributed to the lower parts of slopes, or the segments concave, the largest capacity sediment transport. The processing of the data SRTM-TOPODATA, resulting in thematic maps was realized using the Geographic Information System (GIS) SPRING. The results of Forms Terrain though they are qualitative attributes where likely weighing, considering that the dynamics and intensity of erosive processes are directly linked to the terrain forms and slopes of format, so much in analysis of shape format, concave , straight and convex, and in the analysis of the direction of flow of water runoff, convergent and divergent planar. Accordingly, it is considered possible to attribute from the forms of slope and of terrain a coherent a weighting, which can be used as a variable in the analysis of the vulnerability of the landscape to the loss of soil. |
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Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrainAVALIAÇÃO DA VULNERABILIDADE À PERDA DE SOLOS NA BACIA DO RIO SALOBRA, MS, COM BASE NAS FORMAS DO TERRENOProfile curvature. Plan curvatureTerrain formsErosive processes.SoilsCurvatura vertical. Curvatura horizontalFormas do terrenoProcessos erosivos.Perda de solosThe vulnerability landscape of loss of soil is understood as triggered ruptures by the actions of society in nature, characterizing thus a new organization of phenomena and dynamics in spatial forms that materialize in the landscape. The objective of this article is define the vulnerability of forms of terrain loss of soil, to evaluate the morphological characteristics of vertical and horizontal curvatures of the slopes and forms of terrain. Thus, from the analysis of the slopes established a relationship direct with erosive processes. We used geomorphometric data derived from processing images made in SRTM (Shuttle Radar Topography Mission) Project TOPODATA - INPE, as plan curvature, profile curvature and form of the terrain. Therefore, to define the classes of vulnerability landscape loss of soil, was evaluated that the water flows concentrate and increase the downslope, which was attributed to the lower parts of slopes, or the segments concave, the largest capacity sediment transport. The processing of the data SRTM-TOPODATA, resulting in thematic maps was realized using the Geographic Information System (GIS) SPRING. The results of Forms Terrain though they are qualitative attributes where likely weighing, considering that the dynamics and intensity of erosive processes are directly linked to the terrain forms and slopes of format, so much in analysis of shape format, concave , straight and convex, and in the analysis of the direction of flow of water runoff, convergent and divergent planar. Accordingly, it is considered possible to attribute from the forms of slope and of terrain a coherent a weighting, which can be used as a variable in the analysis of the vulnerability of the landscape to the loss of soil.A vulnerabilidade da paisagem à perda de solos é entendida como as rupturas desencadeadas pela atuação da sociedade na natureza, caracterizando-se assim, uma nova organização dos fenômenos e dinâmicas nas formas espaciais que se materializam na paisagem. O objetivo deste artigo é definir a vulnerabilidade das formas do terreno à perda de solos, avaliando-se as características morfológicas das curvaturas vertical e horizontal das vertentes e, das formas do terreno. Assim, a partir da análise das vertentes estabeleceu-se uma relação direta com os processos erosivos, no qual se utilizou dados geomorfométricos, derivados de processamentos efetuados em imagens SRTM (Shuttle Radar Topography Mission) do Projeto TOPODATA - INPE, como curvatura horizontal, curvatura vertical e formas do terreno. Portanto, para definição das classes de vulnerabilidade da paisagem à perda de solos, avaliou-se que os fluxos de água concentram-se e aumentam encosta abaixo, ou seja, às partes inferiores das encostas, considerando, os segmentos côncavos, com maior capacidade de transporte de sedimentos. Assim, o processamento dos dados SRTM-TOPODATA, que resultaram nos mapas temáticos, efetivou-se com a utilização o Sistema de Informações Geográficas (SIG) implementados no software SPRING. Os resultados das Formas do Terreno, apesar de serem atributos qualitativos foram passiveis de ponderação, considerando-se que as dinâmicas e intensidades dos processos erosivos estão diretamente ligadas às Formas do Terreno e aos formatos das vertentes, tanto na análise do formato do seu perfil, côncavo, retilíneo e convexo, quanto na análise do direcionamento dos fluxos de escoamento da água, convergente, planar e divergente. Nesse sentido, considerou-se possível atribuir a partir das formas das vertentes e do terreno uma ponderação coerente, que possa ser utilizada como uma variável na análise da vulnerabilidade da paisagem à perda de solos.Universidade Estadual de Londrina2014-05-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado pelos paresPesquisa empírica de laboratórioapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/geografia/article/view/1272210.5433/2447-1747.2013v22n1p05GEOGRAFIA (Londrina); v. 22 n. 1 (2013); 05-252447-1747reponame:Geografia (Londrina)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/geografia/article/view/12722/14443Copyright (c) 2014 GEOGRAFIA (Londrina)http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAndré da Silva Neto, João Cândido2022-09-21T14:03:14Zoai:ojs.pkp.sfu.ca:article/12722Revistahttps://www.uel.br/revistas/uel/index.php/geografiaPUBhttps://www.uel.br/revistas/uel/index.php/geografia/oairevista.geografia.uel@gmail.com||marcar@uel.br||laudi@uel.br2447-17470102-3888opendoar:2022-09-21T14:03:14Geografia (Londrina) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain AVALIAÇÃO DA VULNERABILIDADE À PERDA DE SOLOS NA BACIA DO RIO SALOBRA, MS, COM BASE NAS FORMAS DO TERRENO |
title |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain |
spellingShingle |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain André da Silva Neto, João Cândido Profile curvature. Plan curvature Terrain forms Erosive processes. Soils Curvatura vertical. Curvatura horizontal Formas do terreno Processos erosivos. Perda de solos |
title_short |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain |
title_full |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain |
title_fullStr |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain |
title_full_unstemmed |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain |
title_sort |
Evaluation of vulnerability to loss of soil in watershed of Salobra river, MS, based on the forms of terrain |
author |
André da Silva Neto, João Cândido |
author_facet |
André da Silva Neto, João Cândido |
author_role |
author |
dc.contributor.author.fl_str_mv |
André da Silva Neto, João Cândido |
dc.subject.por.fl_str_mv |
Profile curvature. Plan curvature Terrain forms Erosive processes. Soils Curvatura vertical. Curvatura horizontal Formas do terreno Processos erosivos. Perda de solos |
topic |
Profile curvature. Plan curvature Terrain forms Erosive processes. Soils Curvatura vertical. Curvatura horizontal Formas do terreno Processos erosivos. Perda de solos |
description |
The vulnerability landscape of loss of soil is understood as triggered ruptures by the actions of society in nature, characterizing thus a new organization of phenomena and dynamics in spatial forms that materialize in the landscape. The objective of this article is define the vulnerability of forms of terrain loss of soil, to evaluate the morphological characteristics of vertical and horizontal curvatures of the slopes and forms of terrain. Thus, from the analysis of the slopes established a relationship direct with erosive processes. We used geomorphometric data derived from processing images made in SRTM (Shuttle Radar Topography Mission) Project TOPODATA - INPE, as plan curvature, profile curvature and form of the terrain. Therefore, to define the classes of vulnerability landscape loss of soil, was evaluated that the water flows concentrate and increase the downslope, which was attributed to the lower parts of slopes, or the segments concave, the largest capacity sediment transport. The processing of the data SRTM-TOPODATA, resulting in thematic maps was realized using the Geographic Information System (GIS) SPRING. The results of Forms Terrain though they are qualitative attributes where likely weighing, considering that the dynamics and intensity of erosive processes are directly linked to the terrain forms and slopes of format, so much in analysis of shape format, concave , straight and convex, and in the analysis of the direction of flow of water runoff, convergent and divergent planar. Accordingly, it is considered possible to attribute from the forms of slope and of terrain a coherent a weighting, which can be used as a variable in the analysis of the vulnerability of the landscape to the loss of soil. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05-03 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado pelos pares Pesquisa empírica de laboratório |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/12722 10.5433/2447-1747.2013v22n1p05 |
url |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/12722 |
identifier_str_mv |
10.5433/2447-1747.2013v22n1p05 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/12722/14443 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2014 GEOGRAFIA (Londrina) http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2014 GEOGRAFIA (Londrina) http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Londrina |
publisher.none.fl_str_mv |
Universidade Estadual de Londrina |
dc.source.none.fl_str_mv |
GEOGRAFIA (Londrina); v. 22 n. 1 (2013); 05-25 2447-1747 reponame:Geografia (Londrina) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Geografia (Londrina) |
collection |
Geografia (Londrina) |
repository.name.fl_str_mv |
Geografia (Londrina) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
revista.geografia.uel@gmail.com||marcar@uel.br||laudi@uel.br |
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1799315431219003392 |