Date of Award:
5-1968
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Wildland Resources
Department name when degree awarded
Forest Science
Committee Chair(s)
John D. Schultz
Committee
John D. Schultz
Committee
T. W. Daniel
Committee
Richard Krebill
Abstract
Shortwave solar radiation was measured in the late winter of 1967 by means of actinographs below the canopy of two lodgepole pine stands, one thinned and the other unthinned, in northern Utah. Observations were made at four randomly selected stations in each stand and at one station in a large clearing. Radiation available below the thinned and unthinned stands was compared, and radiation in the open was compared with radiation beneath each stand.
Nearly all differences between stands were significant as were the differences between each stand and the open area.
A close correlation was shown between total radiation in the open and total radiation beneath forest stands.
It was concluded that the radiation beneath either the thinned or the unthinned stand was above the minimum (ca. 10 percent of full sunlight) required for adequate reproduction of Engelmann spruce and subalpine fir.
Checksum
b069a99177949da5f1499442d9953362
Recommended Citation
Durtschi, Belden B., "Solar Radiation Under Thinned and Unthinned Lodgepole Pine Stands on the Utah State University School Forest" (1968). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 2951.
https://digitalcommons.usu.edu/etd/2951
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