Citation
Ahmad Zuhaidi Yahya, . and Rosdi K., . (2015) Long-term observation from model plantation of Dyera costulata Jelutong in Kemasul Forest Reserve Peninsular Malaysia: 12 years after planting. [Proceedings Paper]
Abstract
The paper evaluates the long-term study from model plantation of Dyera costulata jelutong. The one-year-old saplings were planted in four different stocking density regimes at 1111 833 625 400 stems ha-. At 12-years the average diameter at breast height of the dominant trees 100 largest trees ha- was 21.5 cm. The average diameter at breast height and total height of the whole stand varies from 15.8 to 21.4 cm and 10.35 to 12.55 m. The achieved standing volume ranges from 37.99 to 129.15 m ha- having an annual volume growth increment at 6.23 m3ha- year-1. The lowest achieved volume growth and yield was obtained from an initial density of 400 stems ha- having the least number of remaining stems at 129 stems ha- or 32.2 survival as compared with 833 and 625 stems ha- at 42 and 52.3 percent. The analyses based on growth increments showed initial densities of 833 and 1111 stems ha- are still favourable having the highest calculated Periodic Annual Diameter Increment PAID at 1.1 and 1.1 cm. The results obtained have provided the base-line information on the growth and yield the needs of improved materials for future planting and way forward of the species towards the States Forest Plantation Industry. The paper suggests that the monitoring will continue to specified rotation age to obtain the actual growth and yield results.
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Abstract
The paper evaluates the long-term study from model plantation of Dyera costulata jelutong. The one-year-old saplings were planted in four different stocking density regimes at 1111 833 625 400 stems ha-. At 12-years the average diameter at breast height of the dominant trees 100 largest trees ha- was 21.5 cm. The average diameter at breast height and total height of the whole stand varies from 15.8 to 21.4 cm and 10.35 to 12.55 m. The achieved standing volume ranges from 37.99 to 129.15 m ha- having an annual volume growth increment at 6.23 m3ha- year-1. The lowest achieved volume growth and yield was obtained from an initial density of 400 stems ha- having the least number of remaining stems at 129 stems ha- or 32.2 survival as compared with 833 and 625 stems ha- at 42 and 52.3 percent. The analyses based on growth increments showed initial densities of 833 and 1111 stems ha- are still favourable having the highest calculated Periodic Annual Diameter Increment PAID at 1.1 and 1.1 cm. The results obtained have provided the base-line information on the growth and yield the needs of improved materials for future planting and way forward of the species towards the States Forest Plantation Industry. The paper suggests that the monitoring will continue to specified rotation age to obtain the actual growth and yield results.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| AGROVOC Term: | Dyera costulata |
| AGROVOC Term: | Timber trees |
| AGROVOC Term: | Forest plantations |
| AGROVOC Term: | Reforestation |
| AGROVOC Term: | Forest reserves |
| AGROVOC Term: | Evaluation |
| AGROVOC Term: | Breast height diameter |
| AGROVOC Term: | Diameter increment |
| AGROVOC Term: | Growth |
| AGROVOC Term: | Yields |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:16 |
| URI: | http://webagris.upm.edu.my/id/eprint/13771 |
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