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Intercept Site-Index Equations for Red Pine Damaged by European Pine Shoot Moth

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Two sets of site-index equations for red pine (Pinus resinosa Ait.) plantations damaged by the European pine shoot moth (Rhyacionia buoliana Schiff.) are proposed: abbreviated-intercept equations and deformation intercept equations. Abbreviated intercepts consist of less than five consecutive internodes starting at breast height; deformation intercepts, less than five random internodes among the first five above breast height. Abbreviated-intercept equations also estimate site index at earlier tree ages than previously was possible.

Document Type: Journal Article

Affiliations: Principal Insect Ecologist, North Central Forest Expt. Sta., Forest Service, U. S. Dept. Agric., St. Paul, Minn.

Publication date: August 1, 1966

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  • 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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