Robust volumetric models for supporting the management of secondary forest stands in the Southern Brazilian Atlantic Forest
Document title: Robust volumetric models for supporting the management of secondary forest stands in the Southern Brazilian Atlantic Forest
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000435716
ISSN: 0001-3765
Authors: 1
1
2
1
3
1
Institutions: 1Universidade Regional de Blumenau, Departamento de Engenharia Florestal, Blumenau, Santa Catarina. Brasil
2Universidade Federal de Santa Catarina, Departamento de Fitotecnia, Florianopolis, Santa Catarina. Brasil
3ERD Consultoria Ambiental, Ita, Santa Catarina. Brasil
Year:
Season: Dic
Volumen: 90
Number: 4
Pages: 3729-3744
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract The majority of Atlantic Forest fragments in Southern Brazil are second-growth forests dominated by fast-growing species with considerable market-value timber. Nevertheless, volume prediction models are scarce, especially to estimate tree total volume (i.e., stem plus branches). This study approached the issue through the following aims: to fit and select stem and total volume models (generic and species-specific) using data from 288 harvested trees in a management operation, and to fit generic and species-specific bark factors. The power model embedding diameter at breast height (D) and tree stem or total height (H) presented the greatest prediction strength for both stem and total tree volume. Models including only D to predict total tree volume were similar to double-entry models regarding goodness-of-fit. Therefore, they may be useful in the context of subtropical closed-canopy forests, where the difficulty and uncertainty in H measurements are not trivial. Species-specific models fitted for Miconia cinnamomifolia (DC) Naudin. and Hyeronima alchorneoides Allemão surpassed generic models only for the former species. Nevertheless, the prediction improvement should offset the eventual extra efforts implied in the collection of reliable samples of these species. Finally, bark factors stood as a satisfactory tool for inside bark mean volume estimation
Disciplines: Biología,
Agrociencias
Keyword: Ecología,
Silvicultura,
Bosque Atlántico,
Inventario forestal,
Modelos volumétricos,
Arboles,
Madera,
Diámetro del tronco
Keyword: Ecology,
Silviculture,
Atlantic forest,
Forest inventory,
Volumetric models,
Trees,
Wood,
Stem diameter
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