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Effects of variations in stand structure on development of mixed-species stands in eastern Washington


, : Effects of variations in stand structure on development of mixed-species stands in eastern Washington. Canadian Journal of Forest Research 23(3): 545-552

The development of six mixed-species, even-aged stands was reconstructed in the eastern Washington Cascade Range. All stands were within the Grand Fir Climax Series and began following stand replacement disturbances. Western larch (Larix occidentalis Nutt.) and lodgepole pine (Pine contorta Dougl. ex Loud.), when present, formed an upper stratum over interior Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco) and grand fir (Abies grandis (Dougl.) Lindl.) in all six stands. Establishment patterns and species composition affect stand development patterns. Douglas-fir benefitted from the absence of lodgepole pine; grand fir benefitted from the absence of Douglas-fir, but apparently not from the absence of lodgepole pine. Lodgepole pine had faster initial diameter growth rates than western larch when it became established relatively early and in large numbers.

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Accession: 002367063

DOI: 10.1139/x93-072

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