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Ciência Florestal
Article . 2014 . Peer-reviewed
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Ciência Florestal
Article
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Ciência Florestal
Article . 2014
Data sources: DOAJ
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ESTIMATIVAS DO ÍNDICE DE ÁREA FOLIAR UTILIZANDO O LAI-2000 E FOTOGRAFIAS HEMISFÉRICAS EM PLANTIOS DE EUCALIPTO

Authors: Yhasmin Paiva Rody; Aristides Ribeiro; José Eduardo Macedo Pezzopane; José Marinaldo Gleriani; André Quintão Almeida; Fernando Palha Leite;

ESTIMATIVAS DO ÍNDICE DE ÁREA FOLIAR UTILIZANDO O LAI-2000 E FOTOGRAFIAS HEMISFÉRICAS EM PLANTIOS DE EUCALIPTO

Abstract

http://dx.doi.org/10.5902/1980509816604O objetivo deste estudo foi estimar o Índice de Área Foliar (IAF) por métodos indiretos em plantios clonais de eucalipto em dois distintos sítios físico-climáticos, durante as estações seca e chuvosa. O estudo foi feito em quatro talhões, dois jovens e dois adultos, localizado na bacia do Rio Doce, leste de Minas Gerais, situados em áreas de baixas e altas altitudes. Nove parcelas foram alocadas em cada talhão. Dados experimentais foram coletados em períodos secos e chuvosos. As medidas indiretas do IAF foram feitas usando o LAI-2000 e câmeras com lentes hemisféricas. Para verificar a precisão da estimativa foi realizada a análise destrutiva. As medias do LAI-2000 foram aquelas que melhores correlacionaram com os dados de IAF observados (R=0,9), embora as fotos hemisféricas apresentem bom potencial de uso. Foi verificado que os valores de IAF dos talhões de maiores altitudes foram maiores comparados às regiões baixas, o que também foi observado pelos métodos indiretos. A análise destrutiva indica baixos valores de IAF medidos na época seca, embora esta variação seja significativamente somente nos talhões das regiões mais altas. Este comportamento é também observado nas estimativas do LAI-2000, diferente das fotografias hemisféricas que não identificaram a sazonalidade do LAI. 

Keywords

clones, métodos indiretos, S, dossel florestal, Agriculture, Forestry, altitude., SD1-669.5

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Average
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