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Root Development and Height Increment of Ponderosa Pines in Pumice Soils of Central Oregon

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Abstract:

Sixty trees were excavated from three different pumice soils in central Oregon. Stems and roots were sectioned and the annual rings of each section were counted and plotted so that the height at a given age could be related to the depth the roots reached at that age. A significant increase in rate of stem elongation occurred when roots grew from surface soil into subsoil. Acceleration of growth was attributed to improvement of moisture relations and, possibly, nutrition in the subsoil.

Keywords: Pinus ponderosa; root morphology; soil nutrients

Document Type: Journal Article

Affiliations: Professor of Statistics, Dept. of Statistics, Oregon State University, Corvallis

Publication date: September 1, 1969

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  • 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:
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