Skip to main content

Plot Volumes from Large-Scale 70 mm Air Photographs

Buy Article:

$29.50 plus tax (Refund Policy)


Plot volume estimates were made from measurements of individual trees on large scale 1:1,200, 70 mm air photographs. Species, total height, crown area, and where possible stem diameter of each tree were determined on 1/5-acre photo plots. Gross cubic volume of each tree was obtained from form-class volume tables entered with photo height and dbh, the latter provided either by regression equations of dbh on the combined photo variables crown area and height or direct photo measurements of dbh. Plot volume estimates were compiled and accuracy tested against plot volumes determined on the basis of field measurements. Accuracy was ± 15 percent of plot volume with 95 percent confidence. Bias was - 6.9 percent of total volume of 15 test plots.

Document Type: Journal Article

Affiliations: Research Technician, Forest Management Research and Services Institute, Department of Forestry and Rural Development of Canada, Ottawa

Publication date: December 1, 1967

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
  • Submit a Paper
  • Membership Information
  • Author Guidelines
  • Ingenta Connect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more