Biomass functions applicable to European beech
| Autor: | E. Cienciala, M. Černý, J. Apltauer, Z. Exnerová |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Journal of Forest Science, Vol 51, Iss 4, Pp 147-154 (2005) |
| Druh dokumentu: | article |
| ISSN: | 1212-4834 1805-935X |
| DOI: | 10.17221/4553-JFS |
| Popis: | This material describes parameterization of allometric functions applicable to biomass estimation of European beech trees. It is based on field data from destructive measurements of 20 full-grown trees with diameter at breast height (dbh) from 5.7 to 62.1 cm. The parameterization was performed for total tree aboveground biomass (AB; besides stump), stem and branch biomass, respectively. The allometric functions contained two or three parameters and used dbh either as a single independent variable or in combination with tree height (H). These functions explained 97 to 99% of the variability in the measured AB. The most successful equation was that using both dbh and H as independent variables in combination with three fitted parameters. H, as the second independent variable, had rather a small effect on improving the estimation: in the case of AB, H as independent variable improved prediction accuracy by 1-2% whereas in the case of branch biomass by about 5%. The parameterized biomass equations are applicable to tree specimens of European beech grown in typically managed forests. |
| Databáze: | Directory of Open Access Journals |
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