Total aboveground biomass of selected age stand of a rehabilitated forest

Roland K.J.H., . and Nik M. Majid, . and G. Seca, . and O.H. Ahmed, . (2011) Total aboveground biomass of selected age stand of a rehabilitated forest. [Proceedings Paper]

The decline of forests globally has elevated the role of the remaining natural regenerating and rehabilitated forests in providing goods and services to mankind. This paper reports an initiative to estimate total aboveground biomass in a rehabilitated forest of different age stands. The study site was at the UPMMitsubishi Forest Rehabilitation Project UPM Bintulu Sarawak Campus Bintulu Sarawak. Plots of 20 x 20 m were established in site 1991 Plot 1991 1999 Plot 1999 and 2008 Plot 2008. An adjacent natural regenerating secondary forest plot Plot NF was also established for comparison. Sample trees were felled to estimate total aboveground biomass. As most of the trees were concentrated in Diameter Class _ 10 cm for younger rehabilitated forests the total aboveground biomass was from this class. Older rehabilitated forest stand in Plot 1991 the Diameter Class of 10-20 cm contributed 43 of the total aboveground biomass while that of Plot NF was 24. These observations suggest that the forests were in the process of recovery. The total aboveground biomass obtained for the rehabilitated forest ranged from 4.2 to 4 140.6 kg as compared to natural regenerating secondary forest of 3 903.3 kg. Older rehabilitated forest of 19 yearold had comparable total biomass as compared to the natural regeneration secondary forest. It can be concluded that all the study plots are in the process of recovery. However the older rehabilitated forest showed better biomass accumulation and recovery in comparison to natural regenerating secondary forest.

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Abstract

The decline of forests globally has elevated the role of the remaining natural regenerating and rehabilitated forests in providing goods and services to mankind. This paper reports an initiative to estimate total aboveground biomass in a rehabilitated forest of different age stands. The study site was at the UPMMitsubishi Forest Rehabilitation Project UPM Bintulu Sarawak Campus Bintulu Sarawak. Plots of 20 x 20 m were established in site 1991 Plot 1991 1999 Plot 1999 and 2008 Plot 2008. An adjacent natural regenerating secondary forest plot Plot NF was also established for comparison. Sample trees were felled to estimate total aboveground biomass. As most of the trees were concentrated in Diameter Class _ 10 cm for younger rehabilitated forests the total aboveground biomass was from this class. Older rehabilitated forest stand in Plot 1991 the Diameter Class of 10-20 cm contributed 43 of the total aboveground biomass while that of Plot NF was 24. These observations suggest that the forests were in the process of recovery. The total aboveground biomass obtained for the rehabilitated forest ranged from 4.2 to 4 140.6 kg as compared to natural regenerating secondary forest of 3 903.3 kg. Older rehabilitated forest of 19 yearold had comparable total biomass as compared to the natural regeneration secondary forest. It can be concluded that all the study plots are in the process of recovery. However the older rehabilitated forest showed better biomass accumulation and recovery in comparison to natural regenerating secondary forest.

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Item Type:	Proceedings Paper
Additional Information:	3 tables; 4 ref. QH 541.5 R27 I61 2011
AGROVOC Term:	Biomass
AGROVOC Term:	Forest rehabilitation
AGROVOC Term:	Secondary forests
AGROVOC Term:	Replanting
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/11568

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