Rehabilitation of degraded tropical rain forest by enrichment planting of endemic species in a forest of Sabah Malaysia

Garcia C., . and Falck J., . (2000) Rehabilitation of degraded tropical rain forest by enrichment planting of endemic species in a forest of Sabah Malaysia. [Proceedings Paper]

The valuable timber from tropical rain forests around the world is an essential resource often used to meet the demand for economic development in the local societies. Most tropical rain forests are able to gradually recover from a selective harvest. But repeated harvest too early in the secondary forest and/or wild fires can call for rehabilitation plantation to speed up the recovery process. The main objective of this effort is to improve biodiversity. Planting and tending tree seedlings of old growth species in the degraded forest is supposed to facilitate migration and reestablishment of fauna and flora belonging to the natural forest. In the current study located to Sabah we investigate the feasibility of rehabilitation planting in a secondary tropical rain forest degraded by harvest and the 1983 wild fire. Under the canopy of a Macaranga- dominated pioneer forest more than 30 Dipterocarp species some non-Dipterocarps and fruit trees are planted using two different plantation concepts i.e. line and gap plantation. The study also includes tests of different techniques for seedling and wildling production and different regimes of shade adjustment in the pioneer vegetation over story. In the first phase starting in 1998 4500-5000 ha will be planted in a 5-year period. The main result so far is that gap plantation is cheaper than line plantation. The reason being that only five compass lines need to be cleared compared to ten for line plantation. Gap plantation appears to give the new Dipterocarp forest a more natural structure since the seedlings are more irregularly spaced than after line plantation. Seedling survival was similar following the two plantation concepts exceeding 85 after three months. Funding is mainly provided by a Swedish company and the local counterpart: Innoprise Corporation Sdn Bhd.

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Abstract

The valuable timber from tropical rain forests around the world is an essential resource often used to meet the demand for economic development in the local societies. Most tropical rain forests are able to gradually recover from a selective harvest. But repeated harvest too early in the secondary forest and/or wild fires can call for rehabilitation plantation to speed up the recovery process. The main objective of this effort is to improve biodiversity. Planting and tending tree seedlings of old growth species in the degraded forest is supposed to facilitate migration and reestablishment of fauna and flora belonging to the natural forest. In the current study located to Sabah we investigate the feasibility of rehabilitation planting in a secondary tropical rain forest degraded by harvest and the 1983 wild fire. Under the canopy of a Macaranga- dominated pioneer forest more than 30 Dipterocarp species some non-Dipterocarps and fruit trees are planted using two different plantation concepts i.e. line and gap plantation. The study also includes tests of different techniques for seedling and wildling production and different regimes of shade adjustment in the pioneer vegetation over story. In the first phase starting in 1998 4500-5000 ha will be planted in a 5-year period. The main result so far is that gap plantation is cheaper than line plantation. The reason being that only five compass lines need to be cleared compared to ten for line plantation. Gap plantation appears to give the new Dipterocarp forest a more natural structure since the seedlings are more irregularly spaced than after line plantation. Seedling survival was similar following the two plantation concepts exceeding 85 after three months. Funding is mainly provided by a Swedish company and the local counterpart: Innoprise Corporation Sdn Bhd.

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Item Type:	Proceedings Paper
Additional Information:	Summary only En
AGROVOC Term:	TROPICAL RAIN FORESTS
AGROVOC Term:	BIODIVERSITY
AGROVOC Term:	PLANTING
AGROVOC Term:	INDIGENOUS ORGANISMS
AGROVOC Term:	SEEDLINGS
AGROVOC Term:	FOREST REHABILITATION
AGROVOC Term:	RESOURCE MANAGEMENT
AGROVOC Term:	SABAH
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/16562

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