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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.2017.tde-25042017-151359
Document
Author
Full name
Julianne Oliveira Sbeghen Lima
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2016
Supervisor
Committee
Gonçalves, Antonio Natal (President)
Ferraz, Alexandre de Vicente
Silva Filho, Demóstenes Ferreira da
Title in Portuguese
Aplicação de quatro métodos indiretos na medição de densidade de dossel em fragmento de mata nativa, recuperada e floresta de Eucalyptus urophylla (S.T. Blake)
Keywords in Portuguese
Densiômetro
Foto hemisférica
Índice de área foliar
Abstract in Portuguese
A cobertura de dossel em uma floresta controla a quantidade, a qualidade e a distribuição da incidência de radiação solar, o que vem a refletir em diferentes níveis de umidade do solo, promovendo a interceptação das chuvas, consequentemente, reduzindo o seu impacto do solo. Além disso, a estrutura vegetal e a densidade do dossel condicionam não apenas o regime de radiação, mas também as trocas de energias e gases entre floresta e atmosfera. Este trabalho teve como objetivo comparar o uso do densiômetro, densitômetro, quadro reticulado e fotografias hemisféricas na obtenção da densidade do dossel visando encontrar uma metodologia de baixo custo e que garanta a mesma eficiência dos resultados de densidade de dossel obtidos de fotografias hemisféricas com máquina fotográfica. Resultados significativos foram obtidos para o uso do quadro reticulado, do densiômetro e da lente hemisférica fisheye clip para celular.
Title in English
Four indirect application methods on measuring canopy density in native, recovered and Eucalyptus urophylla (S.T. Blake) forests
Keywords in English
Densiometer
Hemispherical photo
Leaf area index
Abstract in English
The canopy cover in a forest controls the solar radiation incidence quantity, quality and distribution, which it comes to reflect different levels of soil moisture, promoting the interception of rainfall and, thereafter, reducing its impact soil. Furthermore, plant canopy structure and density promotes not only the radiation system, but also energy and the exchange of gases between atmosphere and forest. This study aimed to compare the densiometer, densitometer lattice frame and hemispherical photographs uses on getting the canopy density in seeking a low methodology costs and guaranteeing the same efficiency of canopy density results hemispherical photographs with camera . This work presented significant results as the lattice frame, densiometer and hemispheric fisheye lens clip for mobile uses.
 
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Publishing Date
2017-05-04
 
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