A Segmented Distribution Approach for Modeling Diameter Frequency Data
Different functions, each in the form of a modified Weibull cumulative distribution function (cdf), were joined together to form a segmented cdf to approximate diameter distributions in forest stands. Estimates of five percentile points (the 0th, 25th, 50th, 75th, and 100th percentiles) were used to determine a segmented cdf. The segmented cdf and the Weibull distribution were fit to diameter data from 252 plot measurements from both thinned and unthinned loblolly pine plantations. Based on the one-sample Kolmogorov-Smirnov goodness-of-fit statistic, the segmented cdf was found to perform no better than the three-parameter Weibull distribution for data from unthinned stands, but was superior in case of thinned stands. The segmented cdf is very flexible; it should be useful for modeling irregular data such as diameter distributions of thinned stands or mixed stands. Forest Sci 30:129-137.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Journal Article
Affiliations: Thomas M. Brooks Professor of Forestry in the Department of Forestry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
Publication date: 1984-03-01
More about this publication?
- Important Notice: SAF's journals are now published through partnership with the Oxford University Press. Access to archived material will be available here on the Ingenta website until March 31, 2018. For new material, please access the journals via OUP's website. Note that access via Ingenta will be permanently discontinued after March 31, 2018. Members requiring support to access SAF's journals via OUP's site should contact SAF's membership department for assistance.
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.
2016 Impact Factor: 1.782 (Rank 17/64 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
- Submit a Paper
- Membership Information
- Author Guidelines
- Ingenta Connect is not responsible for the content or availability of external websites