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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
23/08/2020 |
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Data da última atualização: |
28/08/2023 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
COSTA, T. C. e C. da; VIANA, J. H. M.; RIBEIRO, J. L. |
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Afiliação: |
THOMAZ CORREA E CASTRO DA COSTA, CNPMS; JOAO HERBERT MOREIRA VIANA, CNPMS; Juliana Leite Ribeiro, Universidade Federal de São João del-Rei. |
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Título: |
Models for semideciduous seasonal forest production of leaves and deciduousness: recent perspectives. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
In: YU, H. (ed.). International research in environment, geography and earth science. Hooghly: Book Publisher International, 2020. |
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Volume: |
v. 2. |
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Páginas: |
p. 41-72. |
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DOI: |
978-93-90149-38-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The climate, mainly the water availability and temperature, drives the renewal of biomass in seasonal forest ecosystem, and the greenness and leaf area of its canopy are responsive by climate variations. The renewal of leaves indicated by deciduousness can be model to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink. In this study was investigated the relationship between litterfall, climate variables, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests, to test models to explain the leaf production and deciduousness by time. The data were obtained in satellite images and in plots installed at forest monitoring sites, visited monthly. The tests were conducted in eight semideciduous forest fragments. Permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets. In this time, Landsat and IRS satellite images were obtained and processed for generation of NDVI. The water balance was calculated for each day. The relationship among the variables ?leaf dry weight?, ?LAI?, ?NDVI? and climate variables were verified and regression models was build and evaluated. With monitoring of the sites, the model was validated and reviewed with new variables and data and three equations were compared. It is possible to estimate the fall and renew of leaves biomass in semideciduous forests with reasonable precision. This study showed that only the leaf component of the litterfall of a semideciduous forest in tropical climate can capture average 6.5 Mg.ha-1 .yr-1 of CO2 and this amount can be estimated using climate, biophysics and vegetation index variables. MenosThe climate, mainly the water availability and temperature, drives the renewal of biomass in seasonal forest ecosystem, and the greenness and leaf area of its canopy are responsive by climate variations. The renewal of leaves indicated by deciduousness can be model to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink. In this study was investigated the relationship between litterfall, climate variables, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests, to test models to explain the leaf production and deciduousness by time. The data were obtained in satellite images and in plots installed at forest monitoring sites, visited monthly. The tests were conducted in eight semideciduous forest fragments. Permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets. In this time, Landsat and IRS satellite images were obtained and processed for generation of NDVI. The water balance was calculated for each day. The relationship among the variables ?leaf dry weight?, ?LAI?, ?NDVI? and climate variables were verified and regression models was build and evaluated. With monitoring of the sites, the model was validated and reviewed with new variables and data and three equations were compared. It is possible to estimate the fall and renew of leaves biomass in semideciduous forests with reasonable precision. This study showed that only the leaf componen... Mostrar Tudo |
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Palavras-Chave: |
NDVI; Thornthwaite. |
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Thesagro: |
Carbono; Ecossistema; Floresta; Folha; Mudança Climática. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02526naa a2200265 a 4500
001 2124516
005 2023-08-28
008 2020 bl uuuu u00u1 u #d
024 7 $a978-93-90149-38-4$2DOI
100 1 $aCOSTA, T. C. e C. da
245 $aModels for semideciduous seasonal forest production of leaves and deciduousness$brecent perspectives.$h[electronic resource]
260 $c2020
300 $ap. 41-72. v. 2.
490 $vv. 2.
520 $aThe climate, mainly the water availability and temperature, drives the renewal of biomass in seasonal forest ecosystem, and the greenness and leaf area of its canopy are responsive by climate variations. The renewal of leaves indicated by deciduousness can be model to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink. In this study was investigated the relationship between litterfall, climate variables, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests, to test models to explain the leaf production and deciduousness by time. The data were obtained in satellite images and in plots installed at forest monitoring sites, visited monthly. The tests were conducted in eight semideciduous forest fragments. Permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets. In this time, Landsat and IRS satellite images were obtained and processed for generation of NDVI. The water balance was calculated for each day. The relationship among the variables ?leaf dry weight?, ?LAI?, ?NDVI? and climate variables were verified and regression models was build and evaluated. With monitoring of the sites, the model was validated and reviewed with new variables and data and three equations were compared. It is possible to estimate the fall and renew of leaves biomass in semideciduous forests with reasonable precision. This study showed that only the leaf component of the litterfall of a semideciduous forest in tropical climate can capture average 6.5 Mg.ha-1 .yr-1 of CO2 and this amount can be estimated using climate, biophysics and vegetation index variables.
650 $aCarbono
650 $aEcossistema
650 $aFloresta
650 $aFolha
650 $aMudança Climática
653 $aNDVI
653 $aThornthwaite
700 1 $aVIANA, J. H. M.
700 1 $aRIBEIRO, J. L.
773 $tIn: YU, H. (ed.). International research in environment, geography and earth science. Hooghly: Book Publisher International, 2020.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
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Tipo/Formato |
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Registro |
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URL |
Voltar
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| Registros recuperados : 609 | |
| 102. |  | BACCA, T.; LIMA, E. R.; PICANÇO, M. C.; GUEDES, R. N. C.; VIANA, J. H. M. Sampling plan for the coffe leaf miner Leucoptera coffeella with sex pheromone traps. Journal of Apllied Entomology, Hamburg, v. 132, n. 6, p. 430-438, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Milho e Sorgo. |
|    |
| 104. | | VIANA, J. H. M.; CRUZ, J. C.; ALVARENGA, R. C.; SANTANA, D. P. Manejo do solo para a cultura do milho. In: CRUZ, J. C.; KARAM, D.; MONTEIRO, M. A. R.; MAGALHAES, P. C. (Ed.). A cultura do milho. Sete Lagoas: Embrapa Milho e Sorgo, 2008. cap. 5, p. 99-129.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
|  |
| 105. | | KAWAMOTO, T. S.; VIANA, J. H. M.; FARIA, O. A. C.; FIGUEIREDO, R. A. Ovarian characteristics and somatic development in 2 to 5 months old female Nelore (Bos taurus indicus) calves. Animal Reproduction, v. 15, Suppl.1, p.1086, 2018. Edição dos resumos do 10th International Ruminant Reproduction Symposium (IRRS 2018), 2018., Foz do Iguaçu-PR. CBRA.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 108. | | BACCA, T.; LIMA, E. R.; PICANÇO, M. C.; GUEDES, R. N. C.; VIANA, J. H. M. Optimum spacing of pheromone traps for monitoring the coffee leaf miner Leucoptera coffeella. Entomologia Experimentalis et Applicata, Dordrecht, v. 119, n. 1, p. 39-45, 2006.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 110. | | VIANA, J. H. M.; DONAGEMMA, G. K.; FONTANA, A.; OLIVEIRA, A. P.; ANDRADE, H. M. Fracionamento da areia na distinção de solos arenosos de Luis Eduardo Magalhães-BA. In: SIMPÓSIO BRASILEIRO DE SOLOS ARENOSOS, 1., 2014, Presidente Prudente, SP. [Anais...]. Presidente Prudente, SP: Universidade do Oeste Paulista, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 113. | | PFEIFER, L. F. M.; VIANA, J. H. M.; SIQUEIRA, L. G. B.; ARASHIRO, E. K. N. Tecnologias emergentes na ultrassonografia do trato reprodutivo. NOGUEIRA, E.; SILVA, J. C. B.; NICACIO, A. C.; MINGOTI, G. Z. (ed.). Ultrassonografia na reprodução e avaliação de carcaças em bovinos. Brasília, DF: Embrapa, 2021. Cap. 5. e-pub.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia. |
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| 114. | | CASTRO, N. A. de; SIQUEIRA, L. G. B.; VIANA, J. H. M.; PFEIFER, L. F. M. Uso da PGF como indutor de ovulação em programas de IATF em vacas de leite pós-parto. In: CONGRESSO INTERNACIONAL DO LEITE, 12.; WORKSHOP DE POLÍTICAS PÚBLICAS, 12.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 13., 2013, Porto Velho. Anais... Brasília, DF: Embrapa, 2013. 3 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 115. | | FONSECA, J. F. da; OLIVEIRA, M. E. F.; VIANA, J. H. M. Uso de procedimentos não cirúrgicos para a produção, recuperação e inovulação de embriões em pequenos ruminantes. Revista Brasileira de Reprodução Animal, v. 35, n. 2, p. 113-117, abr./jun. 2011. Palestra apresentada no XIX Congresso Brasileiro de Reprodução Animal, Recife, PE, Brasil, maio de 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 120. | | FERES, L. F.; PALHAO, M. P.; SIQUEIRA, L. G. B.; VIANA, J. H. M. Pregnancy losses after transfer of bovine embryos produced by assisted reproductive technologies. Reproduction, Fertility and Development, v. 31, n. 1, p. 167, 2019. Edição dos resumos da Annual Conference of the International Embryo Technology Society, New Orleans, Louisiana, 2019.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 609 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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