2019
DOI: 10.14393/rbcv67n7-49195
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Modelagens De Sequestro Florestal De Carbono E Dos Conteúdos De Co2 Atmosférico Com Dados Hyperion Em Diferentes Ambientes Na Amazônia Brasileira

Abstract: Esse estudo analisou a concentração e o fl uxo de dióxido de carbono das torres micrometeorológicas pelo modelo desequestro fl orestal de carbono denominado de CO2fl ux, validando essa modelagem pelo índice ICO2, em diferentespaisagens na Amazônia. No estudo foram utilizadas 21 imagens hiperespectrais, obtidas pelo sensor Hyperion/EO-1que opera com 242 bandas espectrais nos comprimentos de onda de 0,4 a 2,5 µm, com uma resolução espacial de 30metros. O CO2fl ux mede a efi ciência do processo de sequestro de ca… Show more

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(6 citation statements)
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“…Both indices reflect the flow of ecosystem services in the landscape, given their sensitivity to fluctuations in energy, water, CO 2 , nutrients and biomass. All these are essential factors for the presence of ecological support processes in the landscape (Bonam, 2008;Costanza et al, 2017) features that contribute to resilience and ecological integrity: significant presence of moisture and organic matter in the soil, permeability, photosynthetic efficiency, evapotranspiration and resistance of vegetation to droughts (Bonam, 2008;Xu et al, 2008;Silva and Baptista, 2015;He et al, 2016;Radula et al, 2018;Amaral et al, 2020).…”
Section: Discussionmentioning
confidence: 99%
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“…Both indices reflect the flow of ecosystem services in the landscape, given their sensitivity to fluctuations in energy, water, CO 2 , nutrients and biomass. All these are essential factors for the presence of ecological support processes in the landscape (Bonam, 2008;Costanza et al, 2017) features that contribute to resilience and ecological integrity: significant presence of moisture and organic matter in the soil, permeability, photosynthetic efficiency, evapotranspiration and resistance of vegetation to droughts (Bonam, 2008;Xu et al, 2008;Silva and Baptista, 2015;He et al, 2016;Radula et al, 2018;Amaral et al, 2020).…”
Section: Discussionmentioning
confidence: 99%
“…Importantly, CO 2 flux was previously validated by micrometeorological towers of the LBA project (Large Scale Biosphere-Atmosphere Experiment in Amazonia), in the contexts of primary forest, secondary forest, pasture and transition cerrado (Silva and Baptista, 2015), as well as in the context of caatinga, in the semi-arid region of Pernambuco (Santos, 2017).…”
Section: Methodsmentioning
confidence: 97%
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