Title:

Tree measurement data from C45 spacing and species mixtures trials, Wind River Experimental Forest

Author(s):

Harrington, Constance A.

Publication Year:

2019

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Harrington, Constance A. 2019. Tree measurement data from C45 spacing and species mixtures trials, Wind River Experimental Forest. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2019-0044

Abstract:

Five units of old-growth were clearcut circa 1980 on Trout Creek Hill, Wind River Experimental Forest in southwestern Washington to establish new stands relevant to management questions in young growth stands. Spacing trials (1x1 or 2x2 meter (m) for the closest spacings up to 6x6 m for the widest spacing) were planted from 1979 to 1982 for Douglas-fir, western white pine, noble fir, western redcedar and western hemlock. In addition, mixtures of various species combinations (50/50 or 33/33/33) were planted at 3x3 m spacing. All treatment plots were 0.4 hectares in size. Permanent measurement plots were established and trees tagged. Many of these plots have been measured several times between 1989 and 2014 for basic tree measurements such as height, diameter, height to live crown, and crown width as well as tree condition metrics such as survival, relative competitive status, and damage to foliage or stem.

Keywords:

biota; farming; Natural Resource Management & Use; Forest management; spacing trial; tree growth; stand growth; crown width; height to live crown; tree height; tree diameter; species mixture; silviculture; Douglas-fir; pseudotsuga menziesii; western white pine; Pinus monticola; noble fir; Abies procera; western hemlock; Tsuga heterophylla; western redcedar; Thuja plicata; grand fir; Abies grandis; red alder; Alnus rubra; Pacific dogwood; Cornus nuttallii; Pacific silver fir; Abies amabilis; Wind River Experimental Forest; Washington; southwest Washington; Trout Creek Hill; Gifford Pinchot National Forest; Mt. Adams Ranger District

Related publications:

• Badege, Bishaw; DeBell, Dean S.; Harrington, Constance A. 2003. Patterns of survival, damage, and growth for western white pine in a 16-year-old spacing trial in western Washington. Western Journal of Applied Forestry. 18(1): 35-43. https://doi.org/10.1093/wjaf/18.1.35
• Erickson, Heather E.; Harrington, Constance A. 2006. Conifer-Ceanothus interactions influence tree growth before and after shrub removal in a forest plantation in the western Cascade Mountains, USA. Forest Ecology and Management. 229: 183-194. https://doi.org/10.1016/j.foreco.2006.03.029
• Erickson, Heather E.; Harrington, Constance A.; Marshall, David D. 2009. Tree growth at stand and individual scales in two dual-species mixture experiments in southern Washington State, USA. Canadian Journal of Forest Research. 39 (6): 1119-1132. https://doi.org/10.1139/x09-040
• More (7 total)

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