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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
05/11/2012 |
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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: |
VASQUES, G. de M.; GRUNWALD, S.; MYERS, D. B. |
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Afiliação: |
GUSTAVO DE MATTOS VASQUES, CNPS; University of Florida; Department of Agriculture, Columbia, Missouri, USA. |
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Título: |
Influence of the spatial extent and resolution of input data on soil carbon models in Florida, USA. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Journal of Geophysical Research Geosciences, v. 117, n. G4, 2012. |
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DOI: |
https://doi.org/10.1029/2012JG001982 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding the causes of spatial variation of soil carbon (C) has important implications for regional and global C dynamics studies. Soil C predictive models can identify sources of C variation, but may be influenced by scale parameters, including the spatial extent and resolution of input data. Our objective was to investigate the influence of these scale parameters on soil C spatial predictive models in Florida, USA. We used data from three nested spatial extents (Florida, 150,000 km2; Santa Fe River watershed, 3,585 km2; and University of Florida Beef Cattle Station, 5.58 km2) to derive stepwise linear models of soil C as a function of 24 environmental properties. Models were derived within the three extents and for seven resolutions (30?1920 m) of input environmental data in Florida and in the watershed, then cross-evaluated among extents and resolutions, respectively. The quality of soil C models increased with an increase in the spatial extent (R2 from 0.10 in the cattle station to 0.61 in Florida) and with a decrease in the resolution of input data (R2 from 0.33 at 1920-m resolution to 0.61 at 30-m resolution in Florida). Soil and hydrologic variables were the most important across the seven resolutions both in Florida and in the watershed. The spatial extent and resolution of environmental covariates modulate soil C variation and soil-landscape correlations influencing soil C predictive models. Our results provide scale boundaries to observe environmental data and assess soil C spatial patterns, supporting C sequestration, budgeting and monitoring programs. MenosUnderstanding the causes of spatial variation of soil carbon (C) has important implications for regional and global C dynamics studies. Soil C predictive models can identify sources of C variation, but may be influenced by scale parameters, including the spatial extent and resolution of input data. Our objective was to investigate the influence of these scale parameters on soil C spatial predictive models in Florida, USA. We used data from three nested spatial extents (Florida, 150,000 km2; Santa Fe River watershed, 3,585 km2; and University of Florida Beef Cattle Station, 5.58 km2) to derive stepwise linear models of soil C as a function of 24 environmental properties. Models were derived within the three extents and for seven resolutions (30?1920 m) of input environmental data in Florida and in the watershed, then cross-evaluated among extents and resolutions, respectively. The quality of soil C models increased with an increase in the spatial extent (R2 from 0.10 in the cattle station to 0.61 in Florida) and with a decrease in the resolution of input data (R2 from 0.33 at 1920-m resolution to 0.61 at 30-m resolution in Florida). Soil and hydrologic variables were the most important across the seven resolutions both in Florida and in the watershed. The spatial extent and resolution of environmental covariates modulate soil C variation and soil-landscape correlations influencing soil C predictive models. Our results provide scale boundaries to observe environmental data and... Mostrar Tudo |
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Palavras-Chave: |
Soil carbon; Soil carbon models. |
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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/69367/1/Vasques-et-al.-Influence-of-the-spatial-extent-and-resolution-of-input-data-on-soil-carbon-models-in-Florida-USA-2.pdf
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Marc: |
LEADER 02188naa a2200181 a 4500
001 1938847
005 2021-11-11
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1029/2012JG001982$2DOI
100 1 $aVASQUES, G. de M.
245 $aInfluence of the spatial extent and resolution of input data on soil carbon models in Florida, USA.$h[electronic resource]
260 $c2012
520 $aUnderstanding the causes of spatial variation of soil carbon (C) has important implications for regional and global C dynamics studies. Soil C predictive models can identify sources of C variation, but may be influenced by scale parameters, including the spatial extent and resolution of input data. Our objective was to investigate the influence of these scale parameters on soil C spatial predictive models in Florida, USA. We used data from three nested spatial extents (Florida, 150,000 km2; Santa Fe River watershed, 3,585 km2; and University of Florida Beef Cattle Station, 5.58 km2) to derive stepwise linear models of soil C as a function of 24 environmental properties. Models were derived within the three extents and for seven resolutions (30?1920 m) of input environmental data in Florida and in the watershed, then cross-evaluated among extents and resolutions, respectively. The quality of soil C models increased with an increase in the spatial extent (R2 from 0.10 in the cattle station to 0.61 in Florida) and with a decrease in the resolution of input data (R2 from 0.33 at 1920-m resolution to 0.61 at 30-m resolution in Florida). Soil and hydrologic variables were the most important across the seven resolutions both in Florida and in the watershed. The spatial extent and resolution of environmental covariates modulate soil C variation and soil-landscape correlations influencing soil C predictive models. Our results provide scale boundaries to observe environmental data and assess soil C spatial patterns, supporting C sequestration, budgeting and monitoring programs.
653 $aSoil carbon
653 $aSoil carbon models
700 1 $aGRUNWALD, S.
700 1 $aMYERS, D. B.
773 $tJournal of Geophysical Research Geosciences$gv. 117, n. G4, 2012.
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Registro original: |
Embrapa Solos (CNPS) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
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Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
16/01/2006 |
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Data da última atualização: |
09/03/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
PRIMAVESI, A. C. P. de A.; GODOY, R.; PRIMAVESI, O. M. A. S. P. R.; SOUZA, F. H. D. de. |
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Afiliação: |
ANA CANDIDA PACHECO DE A PRIMAVESI, CPPSE; RODOLFO GODOY, CPPSE; ODO MARIA ARTUR S P R PRIMAVESI, CPPSE; FRANCISCO HUMBERTO DUBBERN DE SOUZA, CPPSE. |
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Título: |
Avaliação de genótipos e recomendação de cultivares de aveia forrageira, para, o ano de 2006, na região Sudeste. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
São Carlos, SP: Embrapa Pecuária Sudeste, 2005. |
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Páginas: |
3 p. |
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Série: |
(Embrapa Pecuária Sudeste. Comunicado técnico, 60). |
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Idioma: |
Português |
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Conteúdo: |
Na região Sudeste, no período seco e frio do inverno, mesmo usando irrigação, o desenvolvimento e a qualidade das pastagens tropicais são piores, em relação às temperadas. |
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Palavras-Chave: |
Avaliação de genótipo; Cultivares de aveia; Região Sudeste. |
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Thesagro: |
Solo. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPPSE/15929/1/PROCIComT60ACP2005.00180.pdf
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Marc: |
LEADER 00910nam a2200217 a 4500
001 1047249
005 2023-03-09
008 2005 bl uuuu u0uu1 u #d
100 1 $aPRIMAVESI, A. C. P. de A.
245 $aAvaliação de genótipos e recomendação de cultivares de aveia forrageira, para, o ano de 2006, na região Sudeste.$h[electronic resource]
260 $aSão Carlos, SP: Embrapa Pecuária Sudeste$c2005
300 $a3 p.
490 $a(Embrapa Pecuária Sudeste. Comunicado técnico, 60).
520 $aNa região Sudeste, no período seco e frio do inverno, mesmo usando irrigação, o desenvolvimento e a qualidade das pastagens tropicais são piores, em relação às temperadas.
650 $aSolo
653 $aAvaliação de genótipo
653 $aCultivares de aveia
653 $aRegião Sudeste
700 1 $aGODOY, R.
700 1 $aPRIMAVESI, O. M. A. S. P. R.
700 1 $aSOUZA, F. H. D. de
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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