| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000435615 |
| ISSN: | 0001-3765 |
| Authors: | Oliveira, Ximena M. de1 Ribeiro, Andressa2 Ferraz-Filho, Antonio Carlos2 Mayrinck, Rafaella C2 Lima, Renato R. de3 Scolforo, José roberto S1 |
| Institutions: | 1Universidade Federal de Lavras, Departamento de Ciencias Florestais, Lavras, Minas Gerais. Brasil 2Universidade Federal do Piaui, Campus Universitario Professora Cinobelina Elvas, Bom Jesus, Piaui. Brasil 3Universidade Federal de Lavras, Departamento de Estatistica, Lavras, Minas Gerais. Brasil |
| Year: | 2018 |
| Season: | Dic |
| Volumen: | 90 |
| Number: | 4 |
| Pages: | 3285-3298 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | African mahogany (Khaya spp.) plantations are in expansion in Brazil and in the world. This fact justifies the need for studies related to its growth and yield. This paper aimed to evaluate the performance of single-entry and double-entry models for estimating merchantable and total volume for Khaya ivorensis plantations before the first thinning (7 years) and expected final cut (15 years). Volume data was from 100 and 46 trees in Minas Gerais and Pará states, respectively, by using an electronic dendrometer (Criterion RD 1000). Observed volumes were calculated by Smalian’s formula. To validate the optical dendrometer, 10 trees were felled and had their volume measured, and compared with the volumes measured indirectly. The results showed that observed and estimated volumes were statistically equal, and that double-entry models were more precise than single-entry models. Schumacher and Hall model was the best equation to estimate merchantable volume for first thinning and for final cut in Minas Gerais stands. Spurr logarithmized model was the best equation to estimate total volume for first thinning and Spurr model for final cut in Pará stands. All chosen equations can be used to quantify merchantable and total volumes of Khaya ivorensis grown under similar conditions |
| Disciplines: | Agrociencias |
| Keyword: | Silvicultura, Plantaciones forestales, Crecimiento, Dendrometría, Producción de madera, Caoba africana, Khaya ivorensis, Meliaceae |
| Keyword: | Silviculture, Forest plantations, Growth, Dendrometrics, Wood production, African mahogany, Khaya ivorensis, Meliaceae |
| Full text: | https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703285&lng=en&nrm=iso&tlng=en |
