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Boveground Biomass Production And Nutrient Accumulation Of A Gmelina Arborea Plantation In Sarawak, Malaysia

Halenda, C.J. , (1993) Boveground Biomass Production And Nutrient Accumulation Of A Gmelina Arborea Plantation In Sarawak, Malaysia. Journal of Tropical forest Science , 5 (4). pp. 429-439. ISSN 0128-1283

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Official URL: http://info.frim.gov.my/cfdocs/infocenter/jtfsonline/jtfs/v5n4/429-439.pdf

Affiliations

Forest Research Branch, Forest Department, Malaysia

Abstract

A biomass and nutrient content study was carried out on 6-y-old Gmelina arborea, established on abandoned shifting
cultivation sites for the purpose of site rehabilitation. The aboveground biomass of small-litter standing crop, undergrowth and overstorey was determined by destructive
sampling of two 10 X 20 m plots. Total mean aboveground biomass was 92.1 t ha\ Biomass comprised 92.3% overstorey, 3.5% undergrowth and 4.2% litter. Aboveground tree biomass was composed of 68.5% stem wood, 8.8% stem bark, 12.3% branches, 5.1% dead branches, 3.0% foliage and 2.3% twigs. The overstorey biomass contained 394 kg ha-1 K, 236 kg ha-1 N, 214 kg ha-1 Ca, 70 kg ha-1 Mg and 17 kg ha-1 P. A large proportion of these nutrients (55.1 to 71.7%) was immobilized in the stem wood and bark. Remaining nutrients were immobilized in twigs and branches (14.4 to 25.8%), foliage (8.6 to 20.5%) and dead branches (1.7 to 4.0%). Biomass and nutrient accumulation is compared to those of other Gmelina plantations and fallow forests in the tropics.

Item Type:Journal
Additional Information:This note was added by the search_and_modify.pl script.
Keywords:Gmelina arborea, Above ground biomass, Plant nutrient accumulation
Subjects:S Agriculture, Forestry
ID Code:8954

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