OREGON STATE UNIVERSITY
Mature, natural alder stand
Mature, natural alder stand
Thinned natural alder stand
Thinned natural alder stand
Red alder plantation near St Helens
Red alder plantation near St Helens
Red alder plantation in the Oregon Coast Range
Red alder plantation in the Oregon Coast Range
Measuring HSC site
Measuring HSC site
Newly germinated alder plugs
Newly germinated alder plugs
Red alder leaves and female "cones"
Red alder leaves and female "cones"
Washington alder mill
Washington alder mill

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The Hardwood Silviculture Cooperative (HSC) is a multi-faceted research and education program focused primarily on the silviculture of red alder (Alnus rubra) and mixed stands of red alder and Douglas-fir (Pseudotsuga menziesii).

The Hardwood Silviculture Cooperative (HSC) was first established in 1988 by a small (and visionary) group of public agencies and industries. The HSC has been providing information for foresters interested in hardwood management for over 20 years.

The HSC has the oldest and most extensive red alder growth database in existence. The study design includes thirty-six study installations from Coos Bay, Oregon to Vancouver Island, British Columbia. The goal of the HSC research is simple, to improve the understanding, management, and production of red alder.


At A Glance

Red alder Growth and Yield Model! - After many years of development, the first-of-its-kind red alder plantation growth and yield model has been developed using the ORGANON architecture. In addition, a new user-friendly interface for this model has been created by the Center for Intensive-planted Silviculture (CIPS). Click here for the link to download the model and here for the link to download the model interface.

Hardwood Information Extravaganza! - The Washington Hardwoods Commission 2015 Annual Symposium will be held June 9, 2015 in Mt Vernon, WA. The agenda and speaker lineup is not yet available but registration is open. Click here for more information.

HSC 2015 Summer Meeting – The location, dates, and agenda are still to be determined. Stay tuned for more information.

HSC 2014 Annual Report - a look at current HSC activities (pdf).

HSC 2014 Summer Meeting – Was held in Corvallis, OR on August 5th & 6th. In addition to the business meeting, the agenda included presentations on the long-term effects of red alder on PNW soils, taper equation validation, and a CIPS/ORGANON red alder growth model demonstration. The field component included conducting taper measurements and touring a red alder/Douglas-fir research site. For the minutes of the meeting, click here.

Red Alder Symposium -On March 23-25, 2005, the University of Washington hosted a symposium to examine the economic, ecological, and social values of red alder. This link allows viewing of all the presentations.

Symposium Proceedings - Still the most up-to-date and complete resource regarding red alder biology and management - Red alder: a state of knowledge.

HSC Brochure - a brief description of the HSC, its history, objectives, and study designs.