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Over-Age Drought Conifers of the Rocky Mountains

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Extremely long life, especially of Douglas fir and pinyon pine, is found to be associated widely with very slow growth under an apparently adverse environment. Exceptionally dry sites bearing relatively small trees more than 500 years old have been sampled over an area of several hundred thousand square miles. Two trees of exceptional age were found: an 860-year-old pinyon pine and an 860-year-old Douglas fir. A growth curve is presented which shows a radial life history of the latter.

Document Type: Journal Article

Affiliations: Dendrochronologist, Laboratory of Tree-Ring Research, University of Arizona, Tucson, Ariz., and Managing Editor, Tree-Ring Bulletin

Publication date: June 1, 1943

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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.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

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