Written in English
|Statement||by Jaime Fernando Sales Luis.|
|The Physical Object|
|Pagination||, 63 leaves, bound :|
|Number of Pages||63|
Growth-growing stock relationships and recent results from the levels-of-growing-stock studies. Using nitrogen fertilizers in management of coast Douglas-fir: regional trends of response. Using nitrogen fertilizers in management of coast Douglas-fir: future informational needs. Guidelines for thinning Douglas-fir: uses and limitations. Restoration thinnings reduced the growing stock, which in the short term may result in a loss of growth potential. This may not be much of a concern for coastal Douglas-fir, as it has fairly constant stand growth rates across a wide range of stand densities, i.e., growth–growing stock prideinpill.com by: 7. Effects of density control and fertilization on growth and yield of young Douglas-fir plantations in the Pacific Northwest Article (PDF Available) in Canadian Journal of Forest Research 37(2) Compensatory effects of overstory and understory competition attenuate growth responses of conifer seedlings in to year-old Douglas-fir. [ Abstract ] [ PowerPoint ] Conference abstracts for the 5th International Conference on Forest Vegetation Management. 31 p.
Yield data for the regimes are provided in Table 2. with appropriate site index curves, allow estimates of growth rates. Density management diagrams have been constructed for many species, including most of the commercially important Japanese tree species (Ando, ), and for the following North American tree species: Douglas-fir (Pseudotsuga Cited by: May 22, · Progress 10/01/08 to 09/30/09 Outputs OUTPUTS: A series of Douglas-fir test sites were established this past year to test the idea of moving seed sources in response to climate change and evaluate options for adapting to climate change through assisted migration, using silvicultural and genetic options. In the past years, the Pacific Northwest Research Station has established. This study compared growth characteristics of two naturally established, unmanaged, late-immature, Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stands. Both stands were very similar in regards to age, site index, relative density and history, but represented two different ecosystems. The objective was to determine and explain differences in major growth characteristics between the two. Douglas-fir was the most abundant species in young stands, even after PCT to release and favor redwood. Among the three old-growth reference sites, redwood was the most abundant tree species at Governor’s and Elkhead Springs, and nearly rivaled tanoak density at Upper Salmon. Douglas-fir and tanoak were present in all three prideinpill.com by:
Growth trends of young Douglas-fir plantations with varying levels of Swiss needle cast in north coastal Oregon. Swiss Needle Cast Cooperative, College of Forestry, Oregon State University, Corvallis, OR. The d.b.h. growth of individual trees was predicted by five-year periods. Relationships between crown width and d.b.h. were calculated from data on open-grown, Douglas fir trees. There was a close correlation between crown width and root spread for open-grown prideinpill.com by: Aug 15, · To answer these and other similar questions, we need to better understand the impacts of forest management practices on composition, structure and growth of forest vegetation (Problem 2). Although site resources need not be finite, the purpose of all cultural operations is to reallocate site resources to meet the objectives of the forest manager. It is essential that students read the appropriate book readings and/or publications before the class periods. Marshall, D. D. and Curtis, R. O. Levels of growing stock cooperative study in Douglas_fir: Report No. 15_Hoskins: _ Growth trends of young Douglas-fir plantations with varying levels of Swiss needle cast in.