Stem Densities of Trees from Overstocked Mixed Conifer Stands of Western Hemlock, Douglas-fir and Western Redcedar.
Technical Report
·
OSTI ID:5720832
This report presents results from a stem density (wood and bark combined) study conducted on trees from overstocked mixed conifer stands of Douglas-fir (Pseudotsuga menziesii), western hemlock (Tsuga heterophylla) and western redcedar (Thuja plicata) located on the Quilcene Ranger District, Olympic National Forest in the State of Washington. Information on the density of stem wood that is available in literature generally have been derived from trees growing in stands of normal stocking levels. Stem densities, an essential parameter in the determination of stem biomass, have not been investigated for trees growing in overstocked conditions. Predictive estimators of density based on data derived from studies of normally stocked stands can not be applied to trees growing in an overstocked condition with any reliability. There is need to specifically examine stem densities in trees grown under these adverse conditions. 3 refs., 3 tabs.
- Research Organization:
- Forest Service, Portland, OR (USA). Pacific Northwest Research Station
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AI79-84BP17609
- OSTI ID:
- 5720832
- Report Number(s):
- DOE/BP-17609-1; ON: DE88003747
- Country of Publication:
- United States
- Language:
- English
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