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A Tree-Crown Profile Projector

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When classifying trees according to vigor, dominance, and maturity, foresters often find it desirable to measure vertical and lateral crown profiles. Although vertical profiles can readily be charted, the true shape of a lateral profile cannot easily be determined by an observer on the ground because angle of vision and perspective cause distortion. The degree of distortion depends on the height of the tree and the distance of the observer from the tree, and is more pronounced in the upper part of the profile.

Document Type: Journal Article

Affiliations: Appalachian Forest Experiment Station

Publication date: August 1, 1940

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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