Modeling - Calibration
Research Issue
Empirical calibration of a process-based model of tree growth.
Our Research
We have formulated a process-based model of a tree that predicts time-streams of tree diameter, height, crown ratio, and volume. The tree model is intended for use in spatial forest models that predict time-streams of production, growth, and carbon sequestration. At the present time we are investigating ways to calibrate the tree model and characterize variation among trees.
Expected Outcomes
- Calibration procedures for the tree model.
- Incorporation of the tree model into forest forecasting models.
- New theory for modeling forest production.
Research Results
Valentine HT and A Mäkelä. 2005. Bridging process-based and empirical approaches to modeling tree growth. Tree Physiology 25:769--779.
Research Participants
Principal Investigator
- H.T. Valentine, US Forest Service- Northern Research Station Research Forester
- Mark J. Ducey, University of New Hampshire, Durham, NH
Research Partners
- Annikki Mäkelä, University of Helsinki, Helsinki, Finland
- Edwin J. Green, Rutgers University, New Brunswick, NJ
- Guy Pinjuv, Consultant, Portland, OR
- Ian Cameron, Consultant, Kamloops, BC
Last Modified: 04/22/2009