Notes: Two Methods for Evaluating Spatial Pattern in Naturally Regenerated Loblolly Pine Stands

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The ability of two relatively new statistical methods to quantify spatial patterns of forest trees was tested on seven stands of naturally regenerated loblolly pine. Both Greenwood's statistic and reflexive neighbor properties were calculated for each stand. All seven stands were found to be composed of clumps of trees with trees randomly distributed within the clumps. Greenwood's statistic is sensitive to the spatial arrangement of just the sample trees, but reflexive neighbor relationship analysis is sensitive to the spatial arrangement of both the sample trees and their surrounding neighbors, hence, spatial pattern is assessed in greater detail by using both statistics. Both statistical techniques are easy to use and require no prior knowledge of stand density or variability. Forest Sci. 29:514-518.

Keywords: Greenwood's statistic; reflexive neighbor relationship

Document Type: Miscellaneous

Affiliations: Assistant Professor, Belle W. Baruch Forest Science Institute, Clemson University, P.O. Box 596, Georgetown, SC 29440

Publication date: September 1, 1983

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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.
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