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Notes: A Model for Estimating Branch Weight and Branch Leaf Weight in Biomass Studies

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A model of the form w = b1db2(H - h) b3(H/D)b4 is proposed for branch weight or branch leaf weight where d = branch basal diameter, H = total tree height, h = height to branch base, D = tree diameter at breast height and the bi's are constants. The model and variations of it are shown to be useful for regression estimation of branch weights in a study of Populus Tristis # 1 biomass. In such applications, the precision of this model was found to be substantially greater than that of models based on branch diameter alone and nearly as precise as models involving a stand density or spacing term. Forest Sci. 25:303-306.

Keywords: Allometry; regression estimation

Document Type: Miscellaneous

Affiliations: Associate Professor, Department of Forest Resources, University of Minnesota, St. Paul

Publication date: June 1, 1979

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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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