Photo Estimates of Upper Stem Diameters

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Abstract:

With a hand-held 35mm camera mounted with a 200mm lens, a field test was made on 40 white pine trees (Pinus strobus) to evaluate the feasibility of measuring upper stem diameters from photos. A section of the bole was referenced with a scale of known width and photographed with a hand-held camera at a horizontal distance of 10 m from the tree. The technique is simple and gave accurate and precise estimates. Either slides or black and white photos can be used.

Document Type: Journal Article

Affiliations: Recently Received a B.A. (1982) at the Department of Forest Resources, University of New Hampshire, Durham 03824

Publication date: December 1, 1983

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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