Difference between revisions of "Tree growth"
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Revision as of 15:23, 27 August 2008
| Tree growth | x |
| nn | Version: 1 |
| Status: Implemented |
Introduction
Growth is estimated with functions for tree basal area growth. Currently, there are three different growth functions implemented in Heureka:
- Söderberg, U. 1986 (single-tree)[1]
- Elfving, B. 2004 (single-tree)
- Elfving, B. 2004 (whole-stand)
If the whole-stand function is used, total growth (per ha) is first determined at the prediction unit, and then distributed over individual trees with one of the single-tree functions. It is possible to weight growth functions, for example let the total growth (per ha) at a prection unit be the average of that returned by the single-tree and the whole-stand function.
References
- ↑ Söderberg, U. 1986. Functions for forecasting timber yield: increment and form height of individual trees of native tree species in Sweden. Report No 14, Dep. of Biometry and Forest Management (today Dep. of Forest Resource Management), Swedish University of Agricultural Sciences