When Douglas-fir and red alder grow in mixture, interactions between the two species can be competitive, facilitative, or a combination of both over time. A number of factors have recently led to increased interest in managing these two species together for commercial production, and ongoing investigations are yielding important information...
WSU Extension launched the Summer Youth Forestry Institute (SYFI) in 2007 as a way to engage youth in meaningful outdoor summer employment, teach science and natural resource skills, raise awareness of the functions and values of working forest lands, encourage natural resource-related careers, and enhance the management of public forest...
Forest landowners are interested in practicing alternative silviculture methods on their property without having to clearcut. This publication describes a case study on shelterwood harvest and two-aged stand management of a forest in the Oregon Coast Range. The landowner’s core management philosophy is to create forests that are both ecologically...
Discusses the benefits of having a management plan for your property. Describes how to prepare a management plan, including describing the property, setting goals, identifying resources, making recommendations, and keeping records. Includes additional sources for information.
We examined growth and biomass allocation of individual Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and red alder (Alnus rubra Bong.) seedlings grown for 3 years under contrasting combinations of light and water. Alder growth was always greater than Douglas-fir. Full sunlight and soil moisture at field capacity caused large differences in...
The width of earlywood and latewood in conifer xylem may have a profound effect on water transport and storage, vulnerability to embolism, and wood strength, yet the controls over the timing of latewood formation are unclear. Tracheids differentiating in the cambial zone are influenced by IAA indole-3 acetic acid, the...
The relationships among stand structure, Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) branch characteristics, and red alder (Alnus rubra (Bong.)) stem form attributes were explored for 10- to 15-year-old trees growing in mixed Douglas-fir – red alder plantations. Treatments included a range of species proportions, and red alder was either planted simultaneously...
Discusses the benefits of having a management plan for your property. Describes how to prepare a management plan, including describing the property, setting goals, identifying resources, making recommendations, and keeping records. Includes additional sources for information.
Many stands of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) near coastal areas of Oregon and Washington are heavily infected with the foliar pathogen causing Swiss needle cast (SNC) disease, and yet there is very little research on the resulting wood quality. Modulus of elasticity (MOE), modulus of rupture (MOR), microfibril angle...
This document summarizes the Vital Vernonia Indicator Project, an effort aimed at exploring community vitality in Vernonia, particularly in light of recent catastrophic floods and subsequent rebuilding and community development initiatives. The Vital Vernonia Indicator Project is a collaboration of Oregon State University Extension Service, Rural Studies Program, and the...