Citation
Ali M.S., . and Malimbwi R.E., . and Iddi S., . Comparison of volume production basic density and stem quality between Acacia mangium and Acacia auriculiformis grown in Zanzibar. pp. 10-17. ISSN 0128-1283
Abstract
Ali M.S. Malimbwi R.e. Iddi S. 1997. Comparison of volume production basic density and stem quality between Acacia mangium and Acacia auriculiformis grown in Zanzibar. Volume production basic density and stem quality of 6-y-old Acacia mangium and A. auriculiformis grown in Zanzibar were compared. Twenty-one plots (11 plots for Acacia mangium and 10 for A. auriculiformis) were established and used for data collection. From each plot one or two trees from obvious defects were selected for basic density determination. Coreswere then extracted from the selected trees using an increment borer. Basic density of the cores was determined by the water displacement method. Height and diameter data were used for volume estimation. Stem quality was assessed using the scoring method 4 being the best and 1 the worst. At age 6 y diameter and height growth did not vary significantly (p0.05) between the two species. More than 50 cubic m per ha volume production was achieved in both species. The average volume weighted basic density values for A. mangium and A. auriculiformis were 570 kg per cubic m respectively. The basic density values for the two species differed significantly (p0.05). Stem quality was better in A. mangium than in A. auriculiformis. Based on density A. auriculiformis ca be recommended for fuelwood production whereas A. mangium should be recommended for transmission and building poles due to its good stem form.
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Abstract
Ali M.S. Malimbwi R.e. Iddi S. 1997. Comparison of volume production basic density and stem quality between Acacia mangium and Acacia auriculiformis grown in Zanzibar. Volume production basic density and stem quality of 6-y-old Acacia mangium and A. auriculiformis grown in Zanzibar were compared. Twenty-one plots (11 plots for Acacia mangium and 10 for A. auriculiformis) were established and used for data collection. From each plot one or two trees from obvious defects were selected for basic density determination. Coreswere then extracted from the selected trees using an increment borer. Basic density of the cores was determined by the water displacement method. Height and diameter data were used for volume estimation. Stem quality was assessed using the scoring method 4 being the best and 1 the worst. At age 6 y diameter and height growth did not vary significantly (p0.05) between the two species. More than 50 cubic m per ha volume production was achieved in both species. The average volume weighted basic density values for A. mangium and A. auriculiformis were 570 kg per cubic m respectively. The basic density values for the two species differed significantly (p0.05). Stem quality was better in A. mangium than in A. auriculiformis. Based on density A. auriculiformis ca be recommended for fuelwood production whereas A. mangium should be recommended for transmission and building poles due to its good stem form.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | Summaries (En Ms) |
| AGROVOC Term: | ACACIA MANGIUM |
| AGROVOC Term: | ACACIA AURICULIFORMIS |
| AGROVOC Term: | FOREST MENSURATION |
| AGROVOC Term: | PRODUCTION FORESTS |
| AGROVOC Term: | DENSITY |
| AGROVOC Term: | WOOD |
| AGROVOC Term: | PLANT POPULATION |
| AGROVOC Term: | STEMS |
| AGROVOC Term: | QUALITY |
| AGROVOC Term: | TANZANIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:52 |
| URI: | http://webagris.upm.edu.my/id/eprint/17750 |
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