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Creator:: Luoma, Daniel L. and Thies, Walter G.
Abstract:: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stumps, both healthy and infected by Phellinus weirii (Murr.)Gilbertson, were fumigated with chloropicrin at a clearcut site on Washington s Olympic Peninsula. Vegetation cover on plots adjacent to treated and untreated stumps was evaluated to determine fumigant effects on vascular plants and moss. Ninety-eight vascular...
Resource Type:: Article
Full Text:: Columbia (Nelson et al. 1981) and may affect 8% of commercial forest land in the central portion of the

Creator:: Sillett, Stephen C. and Goslin, Matthew N.
Abstract:: Alternatives to clear-cutting are being implemented to increase biodiversity of managed forests in the Pacific Northwest. Lichens are an integral component of old growth, but lichen biomass develops slowly in forests. We evaluated the long-term potential of live tree retention for lichen conservation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) forests....
Resource Type:: Article
Full Text:: using the pole-tangent method (Curtis and Bruce 1968). We also measured crown radii of remnant trees in

Creator:: Maguire, Douglas A., Mainwaring, Douglas B., and Kanaskie, Alan
Abstract:: Swiss needle cast, a foliar disease caused by the Ascomycete Phaeocryptopus gaeumannii (T. Rohde) Petr., continues to afflict Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in north coastal Oregon. Permanent plots were installed in 1998 to assess growth impacts and monitor disease severity. Gross periodic annual increment was measured for three 2-year...
Resource Type:: Article
Full Text:: second-growth Douglas-fir (Bruce and DeMars 1974). Plot-level periodic annual increment (PAI) of

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