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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
25/02/2014 |
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Data da última atualização: |
30/03/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MULIANGA, B.; BÉGUÉ, A.; SIMÕES, M.; CLOUVEL, P.; TODOROFF, P. |
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Afiliação: |
MARGARETH GONCALVES SIMOES, CNPS. |
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Título: |
Estimating potential soil erosion for environmental services in a sugarcane growing área ussing multisource remote sensing data. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: SPIE REMOTE SENSING, 4., 2013, Dresden. Remote sensing for agriculture, ecosystems, and hydrology XV: proceedings... Bellingham: SPIE, 2013. v. 8887. Ref. 88871W. |
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DOI: |
https://doi.org/10.1117/12.2028640 |
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Idioma: |
Inglês |
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Conteúdo: |
Characterization of landscapes is crucial in modelling potential soil erosion to ascertain environmental services that are provided by the main land use in the ecosystem. Remote sensing techniques have proved successful in characterization of landscapes. In this study area of a rain-fed Kibos-Miwani sugar zone of Kenya, we used Normalized Difference Vegetation Index (NDVI) data extracted from satellite imagery to characterize the spatial and temporal heterogeneity of the vegetation conditions, and to model potential soil erosion. Data used included Moderate Resolution Imaging Spectroradiometer (MODIS) 250 m NDVI acquired in the period 2000 to 2012; 30 m Landsat5 time series images acquired between November 2010 and June 2011; a 30 m digital elevation model (DEM); and ground observations (land cover and soil characteristics). Ground observations were cross tabulated and analysed under ISO 17025 laboratory procedures. Temporal NDVI was extracted directly from MODIS 250 m images to study the changes in seasonal vegetation at the region scale, while spatial NDVI was extracted by analysing Landsat 5 images at the field scale. NDVI extracted from Landsat images for a specific date, represented vegetation conditions for that simulation period. To compute potential soil erosion, we ran three simulations using the spatially explicit Fuzzy-based dynamic soil erosion model (FuDSEM) based on identified vegetative conditions, thanks to MODIS data. Input datasets included Landsat 5 NDVI, the slope, aspect, curvature and soil physical properties. Results of land cover presented sugarcane as the main land use, occupying 76% of the land scape. Results of NDVI analysis were consistent with crop management practices, illustrating a spatially heterogeneous land scape with varied vegetation conditions throughout the year. Results of the simulations were not significantly different for the different periods of the year. Out of simulations, we noted a homogeneous low erosion risk in areas with natural land cover with a global mean of 0.42. Medium to intense erosion risk in cropped areas was evident, with erosion risk varying from one pixel to the other. Simulation results suggest that crop management practices (planting and harvesting processes) are the drivers of erosion in sugar cane cultivated areas. MenosCharacterization of landscapes is crucial in modelling potential soil erosion to ascertain environmental services that are provided by the main land use in the ecosystem. Remote sensing techniques have proved successful in characterization of landscapes. In this study area of a rain-fed Kibos-Miwani sugar zone of Kenya, we used Normalized Difference Vegetation Index (NDVI) data extracted from satellite imagery to characterize the spatial and temporal heterogeneity of the vegetation conditions, and to model potential soil erosion. Data used included Moderate Resolution Imaging Spectroradiometer (MODIS) 250 m NDVI acquired in the period 2000 to 2012; 30 m Landsat5 time series images acquired between November 2010 and June 2011; a 30 m digital elevation model (DEM); and ground observations (land cover and soil characteristics). Ground observations were cross tabulated and analysed under ISO 17025 laboratory procedures. Temporal NDVI was extracted directly from MODIS 250 m images to study the changes in seasonal vegetation at the region scale, while spatial NDVI was extracted by analysing Landsat 5 images at the field scale. NDVI extracted from Landsat images for a specific date, represented vegetation conditions for that simulation period. To compute potential soil erosion, we ran three simulations using the spatially explicit Fuzzy-based dynamic soil erosion model (FuDSEM) based on identified vegetative conditions, thanks to MODIS data. Input datasets included Landsat 5 NDVI, ... Mostrar Tudo |
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Palavras-Chave: |
Cropping practices; Environmental service; Slope. |
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Thesaurus Nal: |
land cover; remote sensing; soil erosion; sugarcane. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03224nam a2200253 a 4500
001 1981213
005 2022-03-30
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1117/12.2028640$2DOI
100 1 $aMULIANGA, B.
245 $aEstimating potential soil erosion for environmental services in a sugarcane growing área ussing multisource remote sensing data.$h[electronic resource]
260 $aIn: SPIE REMOTE SENSING, 4., 2013, Dresden. Remote sensing for agriculture, ecosystems, and hydrology XV: proceedings... Bellingham: SPIE, 2013. v. 8887. Ref. 88871W.$c2013
520 $aCharacterization of landscapes is crucial in modelling potential soil erosion to ascertain environmental services that are provided by the main land use in the ecosystem. Remote sensing techniques have proved successful in characterization of landscapes. In this study area of a rain-fed Kibos-Miwani sugar zone of Kenya, we used Normalized Difference Vegetation Index (NDVI) data extracted from satellite imagery to characterize the spatial and temporal heterogeneity of the vegetation conditions, and to model potential soil erosion. Data used included Moderate Resolution Imaging Spectroradiometer (MODIS) 250 m NDVI acquired in the period 2000 to 2012; 30 m Landsat5 time series images acquired between November 2010 and June 2011; a 30 m digital elevation model (DEM); and ground observations (land cover and soil characteristics). Ground observations were cross tabulated and analysed under ISO 17025 laboratory procedures. Temporal NDVI was extracted directly from MODIS 250 m images to study the changes in seasonal vegetation at the region scale, while spatial NDVI was extracted by analysing Landsat 5 images at the field scale. NDVI extracted from Landsat images for a specific date, represented vegetation conditions for that simulation period. To compute potential soil erosion, we ran three simulations using the spatially explicit Fuzzy-based dynamic soil erosion model (FuDSEM) based on identified vegetative conditions, thanks to MODIS data. Input datasets included Landsat 5 NDVI, the slope, aspect, curvature and soil physical properties. Results of land cover presented sugarcane as the main land use, occupying 76% of the land scape. Results of NDVI analysis were consistent with crop management practices, illustrating a spatially heterogeneous land scape with varied vegetation conditions throughout the year. Results of the simulations were not significantly different for the different periods of the year. Out of simulations, we noted a homogeneous low erosion risk in areas with natural land cover with a global mean of 0.42. Medium to intense erosion risk in cropped areas was evident, with erosion risk varying from one pixel to the other. Simulation results suggest that crop management practices (planting and harvesting processes) are the drivers of erosion in sugar cane cultivated areas.
650 $aland cover
650 $aremote sensing
650 $asoil erosion
650 $asugarcane
653 $aCropping practices
653 $aEnvironmental service
653 $aSlope
700 1 $aBÉGUÉ, A.
700 1 $aSIMÕES, M.
700 1 $aCLOUVEL, P.
700 1 $aTODOROFF, P.
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Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
14/05/2001 |
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Data da última atualização: |
04/12/2018 |
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Autoria: |
SOARES, C. R. F. S.; GRAZZIOTTI, P. H.; SIQUEIRA, J. O.; CARVALHO, J. G. de; MOREIRA, F. M. S. |
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Afiliação: |
Cláudio Roberto Fonsêca Sousa Soares, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo.; Paulo Henrique Grazziotti, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo. Bolsista CNPq; José Oswaldo Siqueira, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo. Bolsista CNPq; Janice Guedes de Carvalho, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo. Bolsista CNPq; Fátima Maria Souza Moreira, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo. Bolsista do CNPq. |
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Título: |
Toxidez de zinco no crescimento e nutricao de Eucalyptus maculata e Eucalyptus urophylla em solucao nutritiva. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 2, p. 3339-348, fev. 2001 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Zinc toxicity on growth and nutrition of Eucalyptus maculata and Eucalyptus urophylla in nutrient solution. |
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Conteúdo: |
O objetivo do trabalho foi avaliar o efeito de doses excessivas de Zn no crescimento e nutrição do eucalipto, em casa de vegetação. Mudas de Eucalyptus maculata e Eucalyptus urophylla foram crescidas em vasos contendo 2 L de solução nutritiva de Clark, adicionando-se doses crescentes de Zn: 0, 400, 800, 1.200 e 1.600 mM fornecidas como ZnSO4. Após cinco semanas, as plantas exibiram clorose internerval, escurecimento das raízes e inibição do crescimento, mesmo nas doses mais baixas do metal. A dose crítica de Zn na solução (para redução de 10% na matéria seca da parte aérea) em E. maculata foi de 170,3 mM, e em E. urophylla, 73,0 mM. Os níveis críticos de toxidez de Zn na planta foram de 853 mg kg-1 em E. maculata, e 697,8 mg kg-1 em E. urophylla. Esses resultados indicam que E. maculata é mais tolerante ao Zn do que E. urophylla. Altas doses de Zn reduziram as concentrações de Fe e Ca na matéria seca da parte aérea a níveis considerados deficientes para o crescimento das duas espécies. A translocação de Fe das raízes para a parte aérea foi reduzida, independentemente da espécie, de 21% no controle para apenas 2% em 1.600 mM de Zn, indicando forte relação entre a queda na produção de matéria seca e a ocorrência da eficiência induzida de Fe nas plantas. |
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Palavras-Chave: |
Nutrição das plantas; Oligoelemento; Plants. |
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Thesagro: |
Eucalipto; Metal Pesado; Planta. |
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Thesaurus NAL: |
Eucalyptus; Heavy metals; Plant nutrition; Trace elements. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/18945/1/pab99_208.pdf
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Marc: |
LEADER 02302naa a2200301 a 4500
001 1103678
005 2018-12-04
008 2001 bl uuuu u00u1 u #d
100 1 $aSOARES, C. R. F. S.
245 $aToxidez de zinco no crescimento e nutricao de Eucalyptus maculata e Eucalyptus urophylla em solucao nutritiva.
260 $c2001
500 $aTítulo em inglês: Zinc toxicity on growth and nutrition of Eucalyptus maculata and Eucalyptus urophylla in nutrient solution.
520 $aO objetivo do trabalho foi avaliar o efeito de doses excessivas de Zn no crescimento e nutrição do eucalipto, em casa de vegetação. Mudas de Eucalyptus maculata e Eucalyptus urophylla foram crescidas em vasos contendo 2 L de solução nutritiva de Clark, adicionando-se doses crescentes de Zn: 0, 400, 800, 1.200 e 1.600 mM fornecidas como ZnSO4. Após cinco semanas, as plantas exibiram clorose internerval, escurecimento das raízes e inibição do crescimento, mesmo nas doses mais baixas do metal. A dose crítica de Zn na solução (para redução de 10% na matéria seca da parte aérea) em E. maculata foi de 170,3 mM, e em E. urophylla, 73,0 mM. Os níveis críticos de toxidez de Zn na planta foram de 853 mg kg-1 em E. maculata, e 697,8 mg kg-1 em E. urophylla. Esses resultados indicam que E. maculata é mais tolerante ao Zn do que E. urophylla. Altas doses de Zn reduziram as concentrações de Fe e Ca na matéria seca da parte aérea a níveis considerados deficientes para o crescimento das duas espécies. A translocação de Fe das raízes para a parte aérea foi reduzida, independentemente da espécie, de 21% no controle para apenas 2% em 1.600 mM de Zn, indicando forte relação entre a queda na produção de matéria seca e a ocorrência da eficiência induzida de Fe nas plantas.
650 $aEucalyptus
650 $aHeavy metals
650 $aPlant nutrition
650 $aTrace elements
650 $aEucalipto
650 $aMetal Pesado
650 $aPlanta
653 $aNutrição das plantas
653 $aOligoelemento
653 $aPlants
700 1 $aGRAZZIOTTI, P. H.
700 1 $aSIQUEIRA, J. O.
700 1 $aCARVALHO, J. G. de
700 1 $aMOREIRA, F. M. S.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 36, n. 2, p. 3339-348, fev. 2001
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