Biblioteca Digital de VanguardiaMULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION
This work aimed at evaluating the spatialization of the natural potential for soil erosion in the context USLE (The Universal Soil Loss Equation) by the multivariate statistics technique and the Geographic Information System (GIS) of a micro river basin located at the east portion of Paraíba estate....
| Autores principales: | , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Portugués |
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Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
2014
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| Acceso en línea: | https://www.revistas.usp.br/rdg/article/view/85548 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42107 |
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| author | Lima, Eduardo Rodrigues Viana de Pinto, Sérgio dos Anjos Ferreira Landim, Paulo Milton Barbosa |
| author_facet | Lima, Eduardo Rodrigues Viana de Pinto, Sérgio dos Anjos Ferreira Landim, Paulo Milton Barbosa |
| author_sort | Lima, Eduardo Rodrigues Viana de |
| collection | Repositorio |
| description | This work aimed at evaluating the spatialization of the natural potential for soil erosion in the context USLE (The Universal Soil Loss Equation) by the multivariate statistics technique and the Geographic Information System (GIS) of a micro river basin located at the east portion of Paraíba estate. The erosion factor was created from geostatistical data analysis indirectly obtained in GIS environment. The erosion factors of rain and conservationist practice were considered regular for the area and manually inserted in GIS. Declivity and slope extension factors were manually obtained by topographic maps in 1:25.000 scales and also manually inserted in GIS. The soil use factor was obtained by visual interpretation of aerial photographs and manually inserted in GIS. The USLE formulation was applied in GIS to generate a map of potential for natural erosion and using the same USLE factors the statistic technique of multivariate factor analysis of the correspondences was used. The achieved results showed that it is possible to use this statistic technique to integrate spatialization data originally used in mathematical formulations to generate synthesis map. |
| format | info:eu-repo/semantics/article |
| id | clacso-CLACSO42107 |
| institution | CLACSO, Repositorio Digital |
| language | Portugués |
| publishDate | 2014 |
| publisher | Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas |
| record_format | greenstone |
| spelling | clacso-CLACSO421072022-03-17T15:14:15Z MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION ANÁLISE MULTIVARIADA E CARTOGRAFIA DE SÍNTESE NO ESTUDO DA EROSÃO DOS SOLOS Lima, Eduardo Rodrigues Viana de Pinto, Sérgio dos Anjos Ferreira Landim, Paulo Milton Barbosa Erosão Cartografia de síntese Análise multivariada SIG This work aimed at evaluating the spatialization of the natural potential for soil erosion in the context USLE (The Universal Soil Loss Equation) by the multivariate statistics technique and the Geographic Information System (GIS) of a micro river basin located at the east portion of Paraíba estate. The erosion factor was created from geostatistical data analysis indirectly obtained in GIS environment. The erosion factors of rain and conservationist practice were considered regular for the area and manually inserted in GIS. Declivity and slope extension factors were manually obtained by topographic maps in 1:25.000 scales and also manually inserted in GIS. The soil use factor was obtained by visual interpretation of aerial photographs and manually inserted in GIS. The USLE formulation was applied in GIS to generate a map of potential for natural erosion and using the same USLE factors the statistic technique of multivariate factor analysis of the correspondences was used. The achieved results showed that it is possible to use this statistic technique to integrate spatialization data originally used in mathematical formulations to generate synthesis map. O trabalho teve como objetivo avaliar a espacialização do potencial natural da erosão do solo, no contexto do modelo EUPS (Equação Universal de Perdas de Solo), através da utilização de técnica estatística multivariada e de um Sistema de Informação Geográfica (SIG), em uma microbacia hidrográfica localizada na porção leste do Estado da Paraíba. O fator erodibilidade do solo foi gerado a partir de análise geoestatística de dados obtidos indiretamente, em ambiente SIG. Os fatores erosividade da chuva e práticas conservacionistas foram considerados constantes para toda a área, e inseridos manualmente no SIG. Os fatores declividade e extensão de vertentes, obtidos manualmente em cartas topográficas na escala 1:25.000, foram inseridos, também manualmente, no SIG. O fator uso da terra foi obtido por interpretação visual de fotografias aéreas e inserido manualmente no SIG. A formulação da EUPS foi aplicada em SIG para gerar mapa de potencial natural de erosão, e utilizando os mesmos fatores da EUPS foi utilizada a técnica estatística multivariada da análise fatorial das correspondências. Os resultados obtidos mostraram que é possível utilizar essa técnica estatística para integração e espacialização de dados originalmente numéricos utilizados em formulações matemáticas que permitem gerar mapa de síntese. 2014-08-05 2022-03-17T15:14:15Z 2022-03-17T15:14:15Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.revistas.usp.br/rdg/article/view/85548 10.11606/rdg.v0i0.537 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42107 por https://www.revistas.usp.br/rdg/article/view/85548/88337 Copyright (c) 2014 Eduardo Rodrigues Viana de Lima, Sérgio dos Anjos Ferreira Pinto, Paulo Milton Barbosa Landim application/pdf Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas Revista do Departamento de Geografia; Volume Especial Cartogeo; 40- 93 Revista do Departamento de Geografia; Volume Especial Cartogeo; 40- 93 Revista do Departamento de Geografia; Volume Especial Cartogeo; 40- 93 2236-2878 0102-4582 |
| spellingShingle | Erosão Cartografia de síntese Análise multivariada SIG Lima, Eduardo Rodrigues Viana de Pinto, Sérgio dos Anjos Ferreira Landim, Paulo Milton Barbosa MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION |
| title | MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION |
| title_full | MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION |
| title_fullStr | MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION |
| title_full_unstemmed | MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION |
| title_short | MULTIVARIATE ANALYSIS AND CARTOGRAPHIC SYNTHESIS IN THE STUDY OF SOIL EROSION |
| title_sort | multivariate analysis and cartographic synthesis in the study of soil erosion |
| topic | Erosão Cartografia de síntese Análise multivariada SIG |
| url | https://www.revistas.usp.br/rdg/article/view/85548 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42107 |