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Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
05/07/2016 |
Data da última atualização: |
17/03/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CARVALHO, J. R. P. de; NAKAI, A. M.; MONTEIRO, J. E. B. A. |
Afiliação: |
JOSÉ RUY PORTO DE CARVALHO, CNPTIA; ALAN MASSARU NAKAI, CNPTIA; JOSE EDUARDO B DE ALMEIDA MONTEIRO, CNPTIA. |
Título: |
Spatio-temporal modeling of data imputation for daily rainfall series in homogeneous zones. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Revista Brasileira de Meteorologia, São Paulo, v. 31, n. 2, p. 196-201, Apr./June 2016. |
DOI: |
http://dx.doi.org/10.1590/0102-778631220150025 |
Idioma: |
Inglês |
Conteúdo: |
Spatio-temporal modelling is an area of increasing importance in which models and methods have often been developed to deal with specific applications. In this study, a spatio-temporal model was used to estimate daily rainfall data. Rainfall records from several weather stations, obtained from the Agritempo system for two climatic homogeneous zones, were used. Rainfall values obtained for two fixed dates (January 1 and May 1, 2012) using the spatio-temporal model were compared with the geostatisticals techniques of ordinary kriging and ordinary cokriging with altitude as auxiliary variable. The spatio-temporal model was more than 17% better at producing estimates of daily precipitation compared to kriging and cokriging in the first zone and more than 18% in the second zone. The spatio-temporal model proved to be a versatile technique, adapting to different seasons and dates. |
Palavras-Chave: |
Cokrigagem ordinária; Dados de precipitação; Homogeneous zones; Krigagem ordinária; Modelos espaço-temporal; Ordinary cokriging; Ordinary kriging; Rainfall data; Sistema Agritempo; Spatio-temporal model; Zonas homogêneas. |
Thesaurus Nal: |
Kriging; Meteorological data; Models. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/145074/1/AP-Spatiotemporal-Carvalho.pdf
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Marc: |
LEADER 01932naa a2200325 a 4500 001 2048254 005 2017-03-17 008 2016 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1590/0102-778631220150025$2DOI 100 1 $aCARVALHO, J. R. P. de 245 $aSpatio-temporal modeling of data imputation for daily rainfall series in homogeneous zones.$h[electronic resource] 260 $c2016 520 $aSpatio-temporal modelling is an area of increasing importance in which models and methods have often been developed to deal with specific applications. In this study, a spatio-temporal model was used to estimate daily rainfall data. Rainfall records from several weather stations, obtained from the Agritempo system for two climatic homogeneous zones, were used. Rainfall values obtained for two fixed dates (January 1 and May 1, 2012) using the spatio-temporal model were compared with the geostatisticals techniques of ordinary kriging and ordinary cokriging with altitude as auxiliary variable. The spatio-temporal model was more than 17% better at producing estimates of daily precipitation compared to kriging and cokriging in the first zone and more than 18% in the second zone. The spatio-temporal model proved to be a versatile technique, adapting to different seasons and dates. 650 $aKriging 650 $aMeteorological data 650 $aModels 653 $aCokrigagem ordinária 653 $aDados de precipitação 653 $aHomogeneous zones 653 $aKrigagem ordinária 653 $aModelos espaço-temporal 653 $aOrdinary cokriging 653 $aOrdinary kriging 653 $aRainfall data 653 $aSistema Agritempo 653 $aSpatio-temporal model 653 $aZonas homogêneas 700 1 $aNAKAI, A. M. 700 1 $aMONTEIRO, J. E. B. A. 773 $tRevista Brasileira de Meteorologia, São Paulo$gv. 31, n. 2, p. 196-201, Apr./June 2016.
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Embrapa Agricultura Digital (CNPTIA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
03/08/2004 |
Data da última atualização: |
07/04/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FAGERIA, N. K.; COSTA, J. G. C. da. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; JOAQUIM GERALDO CAPRIO DA COSTA, CNPAF. |
Título: |
Evaluation of common bean genotypes for phosphorus use efficiency. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
Journal of Plant Nutrition, v. 23, n. 8, p. 1145-1152, 2000. |
DOI: |
10.1080/01904160009382088 |
Idioma: |
Inglês |
Conteúdo: |
A greenhouse experiment was conducted to evaluate phosphorus (P)-use efficiency of 10 promising genotypes of common bean (Phaseoius vulgaris L.) with short and normal growth duration. The genotypes were grown on an Oxisol at 25 mg P kg-1 (low P) and 150 mg P kg-1 (high P) of soil. Shoot and root dry weight, root length, P concentration in the shoot, and P uptake in the shoot were significantly (P<0.01) affected by soil P concentration and genotype. However, P level did not effect root length and genotype had no effect on root dry weight. On the basis of P-use efficiency (mg dry weight of shoot/mg P accumulated in the shoot) genotypes were classified as efficient and responsive (ER), efficient and nonresponsive (ENR), nonefficient and responsive (NER), and nonefficient and nonresponsive (NENR). From a practical point of view, genotypes which produce a lot of dry matter in a soil with a low P level, and respond well to added P are the most desirable because they are able to express their high yield potential in a wide range of P environments. Novo Jalo and Pérola genotypes fall into this group. Genotypes Irai, Jalo Precoce and L93300166 fall into the ENR group. Genotypes Carioca, Rosinha G-2, and Xamengo were classified NER, whereas, genotypes L93300176 and Diamante Negro were classified as NENR. There were no differences between short and normal growth duration genotypes in P-use efficiency. |
Thesagro: |
Feijão; Fósforo; Phaseolus Vulgaris. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01956naa a2200181 a 4500 001 1212455 005 2022-04-07 008 2000 bl uuuu u00u1 u #d 024 7 $a10.1080/01904160009382088$2DOI 100 1 $aFAGERIA, N. K. 245 $aEvaluation of common bean genotypes for phosphorus use efficiency.$h[electronic resource] 260 $c2000 520 $aA greenhouse experiment was conducted to evaluate phosphorus (P)-use efficiency of 10 promising genotypes of common bean (Phaseoius vulgaris L.) with short and normal growth duration. The genotypes were grown on an Oxisol at 25 mg P kg-1 (low P) and 150 mg P kg-1 (high P) of soil. Shoot and root dry weight, root length, P concentration in the shoot, and P uptake in the shoot were significantly (P<0.01) affected by soil P concentration and genotype. However, P level did not effect root length and genotype had no effect on root dry weight. On the basis of P-use efficiency (mg dry weight of shoot/mg P accumulated in the shoot) genotypes were classified as efficient and responsive (ER), efficient and nonresponsive (ENR), nonefficient and responsive (NER), and nonefficient and nonresponsive (NENR). From a practical point of view, genotypes which produce a lot of dry matter in a soil with a low P level, and respond well to added P are the most desirable because they are able to express their high yield potential in a wide range of P environments. Novo Jalo and Pérola genotypes fall into this group. Genotypes Irai, Jalo Precoce and L93300166 fall into the ENR group. Genotypes Carioca, Rosinha G-2, and Xamengo were classified NER, whereas, genotypes L93300176 and Diamante Negro were classified as NENR. There were no differences between short and normal growth duration genotypes in P-use efficiency. 650 $aFeijão 650 $aFósforo 650 $aPhaseolus Vulgaris 700 1 $aCOSTA, J. G. C. da 773 $tJournal of Plant Nutrition$gv. 23, n. 8, p. 1145-1152, 2000.
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