Multidecadal Growth of Western White Pine and Interior Douglas-Fir Following Site Preparation by Jonathan R. Cherico, Andrew S. Nelson, Teresa B. Jain, Russell T. Graham

“…Height growth response to herbicide was sustained until age 14 for white pine and age 12 for Douglas-fir, while the diameter response was sustained until age 23 for white pine and 20 for Douglas-fir. …”
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Root Growth Potential and Microsite Effects on Conifer Seedling Establishment in Northern Idaho by Jacob A. Reely, Andrew S. Nelson

“…We found that RGP had no effect on the survival or growth of western larch (<i>Larix occidentalis</i>), Douglas fir (<i>Pseudotsuga menziesii</i> var. <i>glauca</i>), and grand fir (<i>Abies grandis</i>) at a mesic north aspect site and a xeric south aspect site. …”
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Experimental downed woody debris-created microsites enhance tree survival and growth in extreme summer heat by Mark E. Swanson, Margaret I. Magee, Andrew S. Nelson, Rudy Engstrom, Henry D. Adams

“…However, few studies have conducted fine-scale assessments of the strength of the microsite as a function of distance from DWD or how the microsite effect differs between species or across topographic gradients.MethodsIn this study, conducted in the Palouse region of eastern Washington State, we placed three large pieces of DWD (5 m length × 40–50 cm small-end diameter, oriented east–west) on each of three topographic facets (north-facing, flat ridge-top, and south-facing), and planted transects of seedlings of a xerophytic conifer (ponderosa pine, Pinus ponderosa) and a mesophytic conifer (Douglas-fir, Pseudotsuga menziesii) on both sides of the DWD at fixed distances (0, 0.25, 0.5, and 1.5 m). …”
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