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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
01/12/2017 |
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Data da última atualização: |
11/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO JUNIOR, W. de; LOIREAU, M.; FARGETTE, M.; CALDERANO FILHO, B.; WÉLÉ, A. |
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Afiliação: |
WALDIR DE CARVALHO JUNIOR, CNPS; MAUD LOIREAU; MIREILLE FARGETTE; BRAZ CALDERANO FILHO, CNPS; ABDOULAYE WÉLÉ. |
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Título: |
Correlation between soil erodibility and satellite data on areas of current desertification: a case study in Senegal. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Revista Ciência & Trópico, Recife, v. 41, n. 2, p. 51-66, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The purpose of the study is to verify whether some correlation exists between soil erodibility (i.e. K factor mentioned in RUSLE model) and data obtained from satellite images. This piece of work represents a first attempt towards a model that would predict the risk for soil erosion, from information contained in satellite images. Ouarchoch is a rural community in Ferlo Region, Senegal. It lies in a Sahelian typical arid zone and is affected by desertification processes. Ouarchoch site was the pilot area on which the test was performed. K factor was calculated by using soil textural data (sand, silt and clay) in the top (0 ? 5 cm) soil layer (data obtained from the web). Landsat7 satellite images represented different seasonal snapshots (?cool? dry season, warm dry season, rainy season, end of rainy season or beginning of dry season) of the same year, 2014. Calculation used Bands 1 to 7 and Normalized Difference Vegetation Index (NDVI). The choice of data, calculation and analysis are detailed. Some positive moderate correlation exists between soil erodibility on the one hand, and NDVI index displayed during the dry season (images in January and May), as well as Band 5 radiations displayed at the beginning of the dry season (post-harvest, image in October) on the other hand. |
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Thesagro: |
Desertificação; Erosão do Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167948/1/2017-073.pdf
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Marc: |
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001 2081237
005 2021-11-11
008 2017 bl uuuu u00u1 u #d
100 1 $aCARVALHO JUNIOR, W. de
245 $aCorrelation between soil erodibility and satellite data on areas of current desertification$ba case study in Senegal.$h[electronic resource]
260 $c2017
520 $aThe purpose of the study is to verify whether some correlation exists between soil erodibility (i.e. K factor mentioned in RUSLE model) and data obtained from satellite images. This piece of work represents a first attempt towards a model that would predict the risk for soil erosion, from information contained in satellite images. Ouarchoch is a rural community in Ferlo Region, Senegal. It lies in a Sahelian typical arid zone and is affected by desertification processes. Ouarchoch site was the pilot area on which the test was performed. K factor was calculated by using soil textural data (sand, silt and clay) in the top (0 ? 5 cm) soil layer (data obtained from the web). Landsat7 satellite images represented different seasonal snapshots (?cool? dry season, warm dry season, rainy season, end of rainy season or beginning of dry season) of the same year, 2014. Calculation used Bands 1 to 7 and Normalized Difference Vegetation Index (NDVI). The choice of data, calculation and analysis are detailed. Some positive moderate correlation exists between soil erodibility on the one hand, and NDVI index displayed during the dry season (images in January and May), as well as Band 5 radiations displayed at the beginning of the dry season (post-harvest, image in October) on the other hand.
650 $aDesertificação
650 $aErosão do Solo
700 1 $aLOIREAU, M.
700 1 $aFARGETTE, M.
700 1 $aCALDERANO FILHO, B.
700 1 $aWÉLÉ, A.
773 $tRevista Ciência & Trópico, Recife$gv. 41, n. 2, p. 51-66, 2017.
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Registro original: |
Embrapa Solos (CNPS) |
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| Registros recuperados : 492 | |
| 10. |  | CHAGAS, C. da S.; CARVALHO JUNIOR, W. de; PEREIRA, N. R.; FERNANDES FILHO, E. I. Aplicação de um sistema automatizado (ALES - Automated Land Evaluation System) na avaliação das terras das microrregiões de Chapecó e Xanxerê, Oeste Catarinense, para o cultivo de grãos. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 30, n. 3, p. 509-522, maio/jun. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Solos. |
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| 14. | | CARVALHO JUNIOR, W. de; LOIREAU, M.; FARGETTE, M.; CALDERANO FILHO, B.; WÉLÉ, A. Correlation between soil erodibility and satellite data on areas of current desertification: a case study in Senegal. Revista Ciência & Trópico, Recife, v. 41, n. 2, p. 51-66, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Solos. |
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| 16. | | CALDERANO FILHO, B.; CARVALHO JUNIOR, W.; CALDERANO, S. B.; GUERRA, A. J. T.; POLIVANOV, H. Estudo de erosão dos solos na área do médio alto curso do Rio Grande, Região Serrana do Estado do Rio de Janeiro. Revista Geonorte, Manaus, v. 10, n. 1, p. 514-519, out. 2014. Edição especial 4. Edição dos anais do 10 Simpósio Nacional de Geomorfologia, Manaus, out. 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 492 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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