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Interim definitions for old growth Douglas-fir and mixed-conifer forests in the Pacific Northwest and California.Author(s): J.F. Franklin; F. Hall; W. Laudenslayer; C. Maser; J. Nunan; J. Poppino; C.J. Ralph; T. Spies
Source: Res. Note PNW-RN-447. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p.
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
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DescriptionInterim definitions of old-growth forests are provided to guide efforts in land-management planning until comprehensive definitions based on research that is currently underway can be formulated. The basic criteria for identifying old-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and mixed-conifer forests in western Washington and Oregon and California are given.
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CitationFranklin, J.F.; Hall, F.; Laudenslayer, W.; Maser, C.; Nunan, J.; Poppino, J.; Ralph, C.J.; Spies, T. 1986. Interim definitions for old growth Douglas-fir and mixed-conifer forests in the Pacific Northwest and California. Res. Note PNW-RN-447. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p.
KeywordsOld growth, old-growth stands, mixed stands, Coniferae, Pacific North-west, California
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