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Variation in the Surface Area Relationships of Loblolly Pine Fascicles

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Fascicle age and weight, canopy position, stand age, and site influence the surface area relationships of loblolly pine fascicles. Within the canopy, the specific leaf area (surface area/weight) is greatest for the current fascicles in the lower canopy and least for the older fascicles in the upper canopy. Variation in the specific leaf area is inversely related to fascicle density and diameter, both of which differ by fascicle age and canopy position. Older fascicles are 13 percent denser than current fascicles, and the fascicles in the upper canopy are 9 percent greater in diameter than those in the lower canopy. The range in specific leaf area among stands for a given fascicle age and canopy position is less than 20 percent of the overall mean. The fascicles of stands on poor sites are 26 percent lower in surface area and 30 percent lower in weight than those of comparably aged stands on good sites, but the specific leaf area differs by only 4 percent. Forest Sci. 30:355-363.

Keywords: Pinus taeda; leaf area estimates; sampling

Document Type: Journal Article

Affiliations: Professor, Department of Forestry, Mississippi State University, Mississippi State, MS 39762

Publication date: 1984-06-01

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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