|
|
|
|
|
| OLIVEIRA,XIMENA M. DE; RIBEIRO,ANDRESSA; FERRAZ FILHO,ANTONIO CARLOS; MAYRINCK,RAFAELLA C.; LIMA,RENATO R. DE; SCOLFORO,JOSÉ ROBERTO S.. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: African mahogany; Forest mensuration; Non-destructive measurements; Thinning. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703285 |
| |
|
|
| GIANLUPPI, D.; SMIDERLE, O. J.; SOUZA, A. das G.; MAIA, S. da S.. |
| Considering that research on survival and growth of forest species via no-tillage in the improved cerrado of Roraima is still scarce, this research adds information to this technique with six forest species regarding emergence, survival and increase in height and diameter of plants over 18 months. In view of the above, the objective was to indicate procedures for direct sowing of tree forest species (pau-rainha, maçaranduba, freijó,jatobá, itaúba and African mahogany) in a cerrado area of Roraima, with the use of shrubby legumes, as a way to dispense with the formation and management of seedlings in nursery and allow the establishment of forest plantations with reduced costs. |
| Tipo: Parte de livro |
Palavras-chave: Native specie; Exotic specie; Pau-rainha; Freijó; African mahogany; Jatobá; Itaúba; Maçaranduba; Ecological restoration; Seedling emergence. |
| Ano: 2023 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1163208 |
| |
|
|
|
