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Anthracene Technique for Evaluating Canopy Density Following Application of Herbicides

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A quantitative means for evaluating absolute or relative light intensity under a forest canopy is described. The method makes use of 5 ml vials of anthracene in a benzene solution placed at selected locations. The polymerization of anthracene to dianthracene is dependent on the amount of incident light. The remaining anthracene can be determined in a spectrophotometer. The method is particularly designed to measure the reduction of leaf canopy after herbicidal sprays. This permits a quantitative evaluation of the effectiveness of the herbicide.

Document Type: Journal Article

Affiliations: Forest Tree Physiologist, Phytochemist, and Silviculturist, Weyerhaeuser Company Forestry Research Center, Centralia, Washington

Publication date: 1963-09-01

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
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