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Notes: Within-Crown Patterns of Transpiration, Water Stress, and Stomatal Activity in Abies amabilis

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Within-crown patterns of transpiration, water stress, and stomatal activity were investigated in Abies amabilis growing at 1300 m elevation in the Washington Cascades. Cuvettes were used to measure transpiration, stem moisture stress was estimated with a Scholander pressure bomb, and relative stomatal aperture was determined by pressure infiltration. Zones of stem moisture stress within the crowns of these open-grown trees were not always related to crown micro-environment. Frequently, stomatal resistance appeared to be the controlling factor. Redistribution of water from other parts of the crown appeared to determine some of the patterns observed. Forest Sci. 16:490-492.

Keywords: Sap velocity

Document Type: News

Affiliations: Ph.D. Candidate, College of Forest Resources, Univ. of Washington, Seattle

Publication date: 1970-12-01

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.

    2016 Impact Factor: 1.782 (Rank 17/64 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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