Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1035264
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dc.contributor.authorHAMADA, E.pt_BR
dc.contributor.authorPONZONI, F. J.pt_BR
dc.contributor.authorGONÇALVES, R. R. V.pt_BR
dc.date.accessioned2016-01-26T11:11:11Zpt_BR
dc.date.available2016-01-26T11:11:11Zpt_BR
dc.date.created2016-01-26pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE, 2015. p. 2759-2766.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1035264pt_BR
dc.descriptionAbstract: Human influence on the climate system is clear, and recent anthropogenic emissions of greenhouse gases are the highest in history. In addition, recent climate change have had widespread impacts on human and natural system. The morphology and the physiological processes of plants can be altered by increasing the atmospheric carbon dioxide (CO2) concentration. The objective of this study was to evaluate the spectral indexes of individual leaves of coffee cv. Obatã IAC 1669-20 under the effect of increased atmospheric CO2 concentration. Samples of coffee leaves were collected in August and in December 2013, from plants cultivated in the FACE experiment (Free Air CO2 Enrichment), located at Embrapa Environment, Jaguariúna - SP. Seven spectral index were evaluated. The spectral propriety of leaves collected in August detected the effect of CO2 enriched environment by adopting the PSSRa and PSSRb (Pigment Specific Simple Ratio, chlorophyll a and b, respectively) and NDVI (Normalized Difference Vegetation Index), at 1 % of significance. However, the same was not observed in leaves collected in December and the effect of CO2 enriched environment was not significant. Additional studies are been conducted in order to better understanding of the interaction process between the spectral properties of individual leaves and the enriched CO2 concentration environment.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectcv Obatãpt_BR
dc.subjectRadiometricpt_BR
dc.subjectMudanças climáticaspt_BR
dc.subjectRadiometriapt_BR
dc.titleAplicação de índices espectrais na avaliação do aumento da concentração de dióxido de carbono atmosférico em cafeeiro.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2016-01-26T11:11:11Zpt_BR
dc.subject.thesagroCafépt_BR
dc.subject.thesagroDióxido de carbonopt_BR
dc.subject.thesagroClimapt_BR
dc.subject.thesagroCoffea Arábicapt_BR
dc.subject.nalthesaurusclimate changept_BR
riaa.ainfo.id1035264pt_BR
riaa.ainfo.lastupdate2021-02-01 -02:00:00pt_BR
dc.contributor.institutionEMILIA HAMADA, CNPMApt_BR
dc.contributor.institutionFLAVIO JORGE PONZONI, Instituto Nacional de Pesquisas Espaciais - INPEpt_BR
dc.contributor.institutionRENATA R. V. GONÇALVES, Universidade Estadual de Campinas - Unicamp/CEPAGRI.pt_BR
Appears in Collections:Artigo em anais de congresso (CNPMA)

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