Evaluation of Two Methods for Cubic-Volume Prediction of Loblolly Pine to Any Merchantable Limit
Abstract:This study compares two methods of estimating merchantable volumes to specified top diameter or height limits. The prediction models evaluated were (1) volume ratio models that give the ratios of merchantable to total volume, and (2) taper equations that when integrated provide volume estimates of any segment of the bole. Data from plantations and natural stands of loblolly pine were used to compare the models for ability to predict merchantable volumes. Additional evaluations were made to compare taper equations. Results showed that the choice of the model depends on the objective. Two sets of volume ratio models are recommended for predicting merchantable volumes, whereas a new taper equation is found to estimate consistently well both volumes and diameters. Forest Sci. 26:71-80.
Document Type: Journal Article
Affiliations: Mathematical Statistician in the Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Portland, OR 97208
Publication date: 1980-03-01
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
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