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Notes: Seedbed History Affects Tree Growth in Southeast Alaska

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Because nearly 90 percent of the timber in southeast Alaska occurs in uneven-aged, climax or near-climax stands, plots for a soil-site index study were restricted to even-aged stands originally developed after logging, blowdown, or wildfire. On an extensive group of freely drained soils, stands developing after logging or wildfire indicate site index 152, whereas those developing after blow-down indicate site index 126. Accordingly a site index based on stands developed after blowdown underestimates the productivity of the soil after logging.

Keywords: Picea sitchensis; Soil-site index; Tsuga heterophylla; fire ecology

Document Type: News

Affiliations: Member, Staff of South Tongass National Forest, Ketchikan, and North Tongass National Forest, Juneau

Publication date: September 1, 1969

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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