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Age-Density Distributions of Tall Shrubs in Minnesota

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Age-density distributions were developed for tall shrubs in 34 upland aspen and conifer stands in northern Minnesota. Age-density distributions of the entire population of shrubs and of most individual species were best described by a negative exponential model. Distributions of a few shrub species were better described by a power function. Slopes of the distributions for any single species or for the entire population of all species did not differ across the range of sampled stands. Intercepts of the age-density distributions differed among the sampled stands. The age-density structure of shrub stems is similar in form and in descriptive statistics among the sampled aspen and conifer stands. For. Sci. 33(4):846-857.

Keywords: Inverse-J distribution; understory

Document Type: Journal Article

Affiliations: Professor, Department of Soil Science, University of Minnesota, St. Paul, MN 55108

Publication date: 1987-12-01

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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
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    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
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