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Notes: Prediction of Site Index of Lodgepole Pine from Selected Environmental Factors

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Abstract:

Site index and selected soil, climatic, and topographic characteristics were recorded for 72 one-fifth acre plots in well-stocked, even-aged lodgepole pine (Pinus contorta Dougl.) stands in north-central Colorado and south-central Wyoming. Within the range of the area examined, site index can be estimated using four environmental variables: (1) percent of soil particles larger than 0.25 mm. in diameter in the A horizon; (2) total solum depth in inches; (3) estimated percent of surface stoniness; and (4) average annual precipitation in inches. The prediction equation derived from multiple regression analysis accounted for 78 percent of the variance in site index, with most variation (58 percent) due to particle size. Forest Sci. 18:314-316.

Keywords: Pinus contorta; soil moisture; soil structure

Document Type: News

Affiliations: Graduate Research Assistant, Dep. of Forest and Wood Sciences, Colorado State University, Fort Collins

Publication date: 1972-12-01

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

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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