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Stockability: A Major Factor in Productivity Differences between Pinus Taeda Plantations in Hawaii and the Southeastern United States

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Basal area and volume production in loblolly pine spacing trials in Hawaii were nearly double the average production in research plantings in the Southeastern United States. The higher productivity in Hawaii was associated, to some extent, with site index and more rapid growth of individual trees. Competition-related mortality, however, was considerably lower in Hawaii, despite the fact that trees were larger. Consequently, limiting density and mortality threshold boundary lines were much higher. Such differences in stockability (or maximum mean tree size-stand density relationships) accounted for most of the differences in productivity. Forest managers and scientists should pay more attention to possible differences in stockability in the quest for productivity improvement. For. Sci. 35(3):708-719.

Keywords: Stocking; loblolly pine; self-thinning; spacing; yield

Document Type: Journal Article

Affiliations: Principal Silviculturists, USDA Forest Service. Pacific Southwest Forest and Range Experiment Station, Institute of Pacific Islands Forestry, Honolulu, HI

Publication date: 1989-09-01

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

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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