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Abstract

The application of remote sensing techniques in the study and /or evaluation of stresses in vegetation presupposes the knowledge of their effects on the interaction between electromagnetic radiation and the stressed vegetation itself. This knowledge can be acquired by the spectral characterization of these effects, through the analysis of the spectral reflectance of leave, plants and canopies. The objective of this study is to spectrally characterize (between 400 nm and 1.100 nm) the effects of stress related to hydric and nutritional deficiencies in seedlings and in plantations of Eucalyptus grandis and evaluate the consequences of this characterization on the application of remote sensing techniques in the study and in the monitoring of these stresses. (AU)

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