Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques
Directional felling has been implemented in Peninsular Malaysia as part of the Selective Management System (SMS) to obtain optimum yield from the forest resources while reducing damage to the environment and residual trees. Some questions regarding its effectiveness have been questioned a few times,...
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| Format: | Article |
| Language: | English |
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Forestry Department Peninsular Malaysia
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/29203/ http://psasir.upm.edu.my/id/eprint/29203/1/Directional%20felling%20within%20selective%20management%20system%20of%20Peninsular%20Malaysia%20comparison%20between%20current%20and%20extended%20techniques.pdf |
| _version_ | 1848846334240489472 |
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| author | Hamzah, Mohd Zaki H., Nazri S., Azura K., Firdaus M. N., Asiah T. I., Ridzuan I., Zahari |
| author_facet | Hamzah, Mohd Zaki H., Nazri S., Azura K., Firdaus M. N., Asiah T. I., Ridzuan I., Zahari |
| author_sort | Hamzah, Mohd Zaki |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Directional felling has been implemented in Peninsular Malaysia as part of the Selective Management System (SMS) to obtain optimum yield from the forest resources while reducing damage to the environment and residual trees. Some questions regarding its effectiveness have been questioned a few times, resulting in a joint research project at Ulu Jelai Forest Reserve, Pahang, Malaysia to compare between the current directional felling technique and the new (extended) techniques, in terms of accuracy of tree felling, volume of felling logs, expected damage on residual trees, and time taken for tree felling. For this study, 38 trees were felled with the current and extended techniques. By using the extended technique, 91.3% of the trees were felled within the 0°-5° range, and 100% within the 0°-10° range, compared to 28.01% (within the 0°-5° range) using the current technique. The extended technique also recorded higher volume recovery (14% higher) and lower damage on the residual trees by almost 50%. However, the extended technique took longer time, i.e. 4.56 minutes per tree, as compared to 2.50 minutes. The main contributor to the difference is the presence of gauge cut in the extended technique. Generally, the studies suggest that the extended technique is preferred as it is safer to the feller and surrounding people, while reducing the collateral damage on the harvested trees, as well as the residual trees. |
| first_indexed | 2025-11-15T09:01:03Z |
| format | Article |
| id | upm-29203 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:01:03Z |
| publishDate | 2013 |
| publisher | Forestry Department Peninsular Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-292032016-06-20T07:04:09Z http://psasir.upm.edu.my/id/eprint/29203/ Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques Hamzah, Mohd Zaki H., Nazri S., Azura K., Firdaus M. N., Asiah T. I., Ridzuan I., Zahari Directional felling has been implemented in Peninsular Malaysia as part of the Selective Management System (SMS) to obtain optimum yield from the forest resources while reducing damage to the environment and residual trees. Some questions regarding its effectiveness have been questioned a few times, resulting in a joint research project at Ulu Jelai Forest Reserve, Pahang, Malaysia to compare between the current directional felling technique and the new (extended) techniques, in terms of accuracy of tree felling, volume of felling logs, expected damage on residual trees, and time taken for tree felling. For this study, 38 trees were felled with the current and extended techniques. By using the extended technique, 91.3% of the trees were felled within the 0°-5° range, and 100% within the 0°-10° range, compared to 28.01% (within the 0°-5° range) using the current technique. The extended technique also recorded higher volume recovery (14% higher) and lower damage on the residual trees by almost 50%. However, the extended technique took longer time, i.e. 4.56 minutes per tree, as compared to 2.50 minutes. The main contributor to the difference is the presence of gauge cut in the extended technique. Generally, the studies suggest that the extended technique is preferred as it is safer to the feller and surrounding people, while reducing the collateral damage on the harvested trees, as well as the residual trees. Forestry Department Peninsular Malaysia 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29203/1/Directional%20felling%20within%20selective%20management%20system%20of%20Peninsular%20Malaysia%20comparison%20between%20current%20and%20extended%20techniques.pdf Hamzah, Mohd Zaki and H., Nazri and S., Azura and K., Firdaus and M. N., Asiah and T. I., Ridzuan and I., Zahari (2013) Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques. The Malaysian Forester, 76 (2). pp. 99-108. ISSN 0302-2935 |
| spellingShingle | Hamzah, Mohd Zaki H., Nazri S., Azura K., Firdaus M. N., Asiah T. I., Ridzuan I., Zahari Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques |
| title | Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques |
| title_full | Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques |
| title_fullStr | Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques |
| title_full_unstemmed | Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques |
| title_short | Directional felling within selective management system of Peninsular Malaysia: comparison between current and extended techniques |
| title_sort | directional felling within selective management system of peninsular malaysia: comparison between current and extended techniques |
| url | http://psasir.upm.edu.my/id/eprint/29203/ http://psasir.upm.edu.my/id/eprint/29203/1/Directional%20felling%20within%20selective%20management%20system%20of%20Peninsular%20Malaysia%20comparison%20between%20current%20and%20extended%20techniques.pdf |