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The effect of soil water deficit on the reflectance of conifer seedling canopiesThe effects of soil water deficit on spruce and pine seedling canopy reflectance, needle reflectance and transmittance, and canopy density were measured in a greenhouse with a diffuse source of radiant flux. A potential for early or pre-visual detection of plant water stress was not supported by these measurements made at visible, and reflected infrared wavelengths to 1950 nm. Needles were found to transmit approximately thirty percent of the radiant flux incident on them at 780 nm, ten percent at 700 nm, and were found to be opaque at 450, 550, 600 and 650 nm.
Document ID
19780006578
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fox, L.
(Humboldt State Coll. Arcata, CA, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: ERIM Proc. of the 11th Intern. Symp. on Remote Sensing of Environment, Vol. 1
Subject Category
Earth Resources And Remote Sensing
Accession Number
78N14521
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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