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Methods for Determining the Number of Leaf-Clusters on Sugar Maple

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Abstract:

Leaf-clusters on 55 pole-sized sugar maples from 3 northern hardwood stands near Tully, N.Y., were evenly distributed throughout each of three crown levels. Less than 7 percent of the clusters occurred on tree boles or the bases of large branches. Mean number of leaves per cluster (4-5) increased significantly (0.4 leaf) in the upper half of the crown between June and August. In August, cluster size was significantly greater (0.6 leaf) in the upper crown than the lower crown. Results from two of three samples in Tully and a sample of 12 trees in Wanakena, N.Y., indicated that total number of leaf-clusters can be estimated using tree diameter or a combination of diameter, height, and crown size. Branch diameter was closely correlated with number of leaf-clusters. The allometric equation Y = b0 + b1xb described this relationship. The results are useful to those studying insect and arthropod populations on sugar maple trees. Forest Sci. 22:412-416.

Keywords: Acer saccharum; allometry

Document Type: Journal Article

Affiliations: Associate Professor, Department of Entomology, State University College of Environmental Science and Forestry, Syracuse, N.Y. 13210

Publication date: December 1, 1976

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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