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Environmental Factors Affecting Natural Regeneration Engelmann Spruce in the Central Rocky Mountains

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Natural regeneration success of Engelmann spruce in clearcut openings, with adequate seed, is controlled by weather and aspect and modified by seedbed conditions. Small clearcut openings of 1-2 hectares can be successfully regenerated on north exposures with mineral soil seedbeds and shade. However, successful natural regeneration in openings on south aspects is not possible, and shade is absolutely essential for any survival. Drought was the most serious cause of mortality, but significant losses also resulted from heat girdle, frost heaving, and clipping by birds. FOREST SCI. 23:420-429.

Keywords: Abies lasiocarpa; Picea engelmannii; clearcutting; seedling ecology

Document Type: Journal Article

Affiliations: Chief Silviculturist, USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, with central headquarters maintained at Fort Collins in cooperation with Colorado State University, 80521.

Publication date: 1977-12-01

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.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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