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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
12/03/2012 |
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Data da última atualização: |
14/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WASSERMANN, M. A. V.; PEREIRA, T. R.; ROCHEDO, E. R. R.; SOUSA, W. O.; PEREZ, D. V.; PINHEIRO, E. F. M.; SIMÕES FILHO, F. F. L. |
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Afiliação: |
DANIEL VIDAL PEREZ, CNPS. |
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Título: |
The influence of brazilian soils properties in Americium sorption. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Radioprotection, v. 46, n. 6, p. S579-S585, 2011. |
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DOI: |
https://doi.org/10.1051/radiopro/20116955s |
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Idioma: |
Inglês |
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Conteúdo: |
Although some radioecological studies have been accomplished in Brazilian soils supplying useful information to optimization of emergency planning actions in rural areas and to the management of soils contaminated by 137Cs, 60Co and 90Sr, few studies were made with transuranic elements in tropical agricultural areas. The different scenarios found in Brazilian agricultural environments enhance the importance of studying the biogeochemical behavior of radionuclides in representative soils. The objective of this work was to determine the mobility of 241Am in 3 different Brazilian agricultural soils evaluating migration with depth and Kd values for 241Am and the effect of organic amendments on this behavior. A strong effect of organic amendments on mobility of americium could be observed. The values of Kd obtained in all studied tropical soils were however smaller than those found in European soils and from those recommended by IAEA to be used as default values in the absence of regional data. This result reinforces the vulnerability of some tropical soils to a contamination, emphasizing the need to use of regional values. |
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Thesaurus Nal: |
americium. |
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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/148148/1/radiopro-icrer-46955.pdf
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Marc: |
LEADER 01793naa a2200217 a 4500
001 1918303
005 2021-09-14
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1051/radiopro/20116955s$2DOI
100 1 $aWASSERMANN, M. A. V.
245 $aThe influence of brazilian soils properties in Americium sorption.$h[electronic resource]
260 $c2011
520 $aAlthough some radioecological studies have been accomplished in Brazilian soils supplying useful information to optimization of emergency planning actions in rural areas and to the management of soils contaminated by 137Cs, 60Co and 90Sr, few studies were made with transuranic elements in tropical agricultural areas. The different scenarios found in Brazilian agricultural environments enhance the importance of studying the biogeochemical behavior of radionuclides in representative soils. The objective of this work was to determine the mobility of 241Am in 3 different Brazilian agricultural soils evaluating migration with depth and Kd values for 241Am and the effect of organic amendments on this behavior. A strong effect of organic amendments on mobility of americium could be observed. The values of Kd obtained in all studied tropical soils were however smaller than those found in European soils and from those recommended by IAEA to be used as default values in the absence of regional data. This result reinforces the vulnerability of some tropical soils to a contamination, emphasizing the need to use of regional values.
650 $aamericium
700 1 $aPEREIRA, T. R.
700 1 $aROCHEDO, E. R. R.
700 1 $aSOUSA, W. O.
700 1 $aPEREZ, D. V.
700 1 $aPINHEIRO, E. F. M.
700 1 $aSIMÕES FILHO, F. F. L.
773 $tRadioprotection$gv. 46, n. 6, p. S579-S585, 2011.
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Registro original: |
Embrapa Solos (CNPS) |
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Origem |
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Classificação |
Cutter |
Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
06/07/2015 |
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Data da última atualização: |
06/07/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
LEITOLD, V.; KELLER, M.; MORTON, D. C.; COOK, B. D.; SHIMABUKURO, Y. E. |
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Afiliação: |
VERONIKA LEITOLD, INPE; MICHAEL KELLER, USDA/PESQUISADOR VISITANTE CNPM; DOUGLAS C. MORTON, NASA; BRUCE D. COOK, NASA; YOSIO E. SHIMABUKURO, INPE. |
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Título: |
Airborne lidar-based estimates of tropical forest structure in complex terrain: opportunities and trade-offs for REDD+. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Carbon Balance and Management, v. 10, n. 3, p. 1-12, 2015. |
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DOI: |
10.1186/s13021-015-0013-x |
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Idioma: |
Português |
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Conteúdo: |
Carbon stocks and fluxes in tropical forests remain large sources of uncertainty in the global carbon budget. Airborne lidar remote sensing is a powerful tool for estimating aboveground biomass, provided that lidar measurements penetrate dense forest vegetation to generate accurate estimates of surface topography and canopy heights. Tropical forest areas with complex topography present a challenge for lidar remote sensing. |
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Palavras-Chave: |
Airbone lidar; Biomass estimation; Canopy height; Data thinning; Digital terrain model; Elevation accuracy; REDD+; Tropical montane forest. |
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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/126229/1/4535.pdf
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Marc: |
LEADER 01252naa a2200277 a 4500
001 2019401
005 2015-07-06
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1186/s13021-015-0013-x$2DOI
100 1 $aLEITOLD, V.
245 $aAirborne lidar-based estimates of tropical forest structure in complex terrain$bopportunities and trade-offs for REDD+.
260 $c2015
520 $aCarbon stocks and fluxes in tropical forests remain large sources of uncertainty in the global carbon budget. Airborne lidar remote sensing is a powerful tool for estimating aboveground biomass, provided that lidar measurements penetrate dense forest vegetation to generate accurate estimates of surface topography and canopy heights. Tropical forest areas with complex topography present a challenge for lidar remote sensing.
653 $aAirbone lidar
653 $aBiomass estimation
653 $aCanopy height
653 $aData thinning
653 $aDigital terrain model
653 $aElevation accuracy
653 $aREDD+
653 $aTropical montane forest
700 1 $aKELLER, M.
700 1 $aMORTON, D. C.
700 1 $aCOOK, B. D.
700 1 $aSHIMABUKURO, Y. E.
773 $tCarbon Balance and Management$gv. 10, n. 3, p. 1-12, 2015.
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Registro original: |
Embrapa Territorial (CNPM) |
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