Publication
 

Effects of light intensity on the growth and allometry of two Bornean Dryobalanops (Dipterocarpaceae) seedlings

Biomass growth and allometry of Dryobalanops aromatica and D. lanceolata seedlings compared among five neutral shade conditions [7,12, 27, 48 and 100% relative light intensity (RLI)]. The estimated optimum RLIs for seedling growth were not much different between the species; 26.9% and 31.8% for D. aromatica and D. lanceolata respectively. But seedling allometry showed significant interspecific differences. Dryobalanops aromatica allocated more above-ground biomass to stem and made seedlings than D. lanceolata. This allometric difference seems to be related to the differences in gap regimes of the sites where they are distributed in the study forest.

Pertumbuhan biojisim dan alometri anak benih Dryobalanops aromaticaaan D. lanceolata dibandingkan di bawah lima keadaan teduhan neutral [7, 12, 27, 48 dan 100% keamatan cahaya relatif (RLI)]. Anggaran optimum RLI bagi pertumbuhan anak benih tidak banyak berbeza antara spesies; masing-masing 26.9 dan 31.8% bagi D. aromatica dan D. lanceolata. Bagaimanapun, alometri anak benih menunjukkan perbezaan bererti antara spesies. Dryobalanops aromatica memperuntuk lebih banyak biojisim atas-tanah kepada batang dan menjadikan anak benihnya lebih tinggi berbanding dengan anak benih D. lanceolata. Perbezaan alometri didapati berkaitan dengan perbezaan dalam regim ruang tapak yang diagihkan di hutan kajian.

Abstract in English and Malay; article in English only.

Authors: 
A. Itoh, T. Yamakura, & H.S. Lee
Journal: 
Journal of Tropical Forest Science
Year: 
1999
Volume: 
11
Issue: 
3
Pages: 
610-618
Site: 
Lambir