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Notes: Temperature and Soil Fertility Affect Lodgepole and Ponderosa Pine Seedling Growth

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Abstract:

Growth of lodgepole (Pinus contorta Dougl.) and ponderosa pine (P. ponderosa Laws.) under nine different temperature regimes and four levels of soil fertility was investigated to increase understanding of growth rates of the two species in south-central Oregon. Fertilization increased growth of both species under all temperature regimes studied. Lodgepole pine growth was not as sensitive to night temperature changes of 8° to 16°C as was ponderosa pine growth. The number of daily degree hours necessary for maximum growth increased with increasing soil fertility level for night temperatures of 16°C. Forest Sci. 18:132-134.

Keywords: Pinus contorta; Pinus ponderosa; air temperature; fertilizers

Document Type: News

Affiliations: Research Soil Scientist, Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Bend, Oregon

Publication date: 1972-06-01

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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