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来源类型 | Articles |
规范类型 | 论文 |
ISSN | 0128-1283 |
Preliminary pruning programme for Tectona grandis plantations in Costa Rica | |
Belcher, B.; Dandan, Wu; Xiaosheng Yang | |
发表日期 | 2003 |
出处 | Journal of Tropical Forest Science 15(4): 557-569 |
出版年 | 2003 |
语种 | 英语 |
摘要 | End-users’ requirements for fast-grown Tectona grandis timber include straight bole with least taper, reduced flutes and buttresses as well as wood free of knots. In Costa Rica and many other tropical countries, no official classification norms have been developed to differentiate wood quality improvements obtained from pruning. The aim of this research was to study the structure and composition of the crown biomass in order to develop a simple and practical pruning programme for T. grandis in Costa Rica. Regardless of site, the results indicate that the first pruning in T. grandis should be carried out when trees reach a total height of between 4 and 5 m, pruning up to 2-3 m. In a second intervention, trees should be pruned up to 4-5 m when the stand reaches between 9 and 10 m of total height. Finally, in a third intervention, all the branches up to 7 m should be pruned when trees reach 12 m of total height. According to the present results, the pruning of T. grandis in Costa Rica can be economically feasible for rotations of 15 years and more, if performed adequately and with precise timing. |
主题 | pruning ; Tectona grandis ; wood products ; conservation ; tree planting ; trees |
区域 | Costa Rica |
URL | https://www.cifor.org/library/4565/ |
来源智库 | Center for International Forestry Research (Indonesia) |
资源类型 | 智库出版物 |
条目标识符 | http://119.78.100.153/handle/2XGU8XDN/90509 |
推荐引用方式 GB/T 7714 | Belcher, B.,Dandan, Wu,Xiaosheng Yang. Preliminary pruning programme for Tectona grandis plantations in Costa Rica. 2003. |
条目包含的文件 | 条目无相关文件。 |
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