Managing Red Alder in the Douglas-Fir Region: Some Possibilities

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We compare the present net worth (PNW) of each of six theoretical systems for managing red alder (Alnus rubra) with PNW of fertilized and unfertilized Douglas-fir (Pseudotsuga menziesii) systems in continuous management. Under the conditions specified for this analysis, the most profitable system (PNW = $623 per acre) is Douglas-fir commercially thinned and fertilized twice in a 45-year rotation. In the next most profitable system (PNW = $578 per acre), red alder is grown to sawlog size in 28 years and followed by Douglas-fir, thinned twice but not fertilized, in a 45-year rotation. The remaining six systems range downward from PNW = $527 (unfertilized Douglas-fir) to PNW = -$251 (red alder in continuous 13-year rotation). The conditions under which managed red alder systems are equally profitable with Douglas-fir include increases in either real interest rate, alder stumpage price, or the cost of nitrogen fertilizer, or a decrease in the time required to grow red alder to minimum sawlog size.

Document Type: Journal Article

Affiliations: Forestry Research Manager, Crown Zellerbach Corporation, Wilsonville, Oregon

Publication date: December 1, 1983

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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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