Microwave Attenuation as an Indicator of Sampling Weight of Herbaceous and Woody Plants in the Field
Abstract:Attenuation of microwave signals was linearly related to the weight of herbaceous plants and woody shoots < 1.27 cm diameter along the transmission path in spruce-fir, northern hardwood, and mixed-wood stands. Hand-held instrumentation gave results equal to those obtained when rigid mounts were used. Signal loss was more closely related to green weight of vegetation in hardwood stands and to dry weight in softwood stands. Signal loss also was linearly related to annual growth of herbaceous and broadleaf woody vegetation. Forest Sci. 29:726-734.
Document Type: Journal Article
Affiliations: Professor, Electrical Engineering Department, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
Publication date: 1983-12-01
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