The results of research on dry dipterocarp forest biomass in Central Highlands of Vietn
Keywords:
Biomass, Dry dipterocarp forest,, Central Highlands commune, Biomass structureAbstract
Research results show that there are six major species of dry dipterocarp forest including Shorea obtuse, Dipterocarpus tuberculatus, Dipterocarpus obtusifolius, Dipterocarpus obtusifolius, Terminalia corticosa and Terminalia alata. The highest biomass of single tree in average belongs to D. Obtusifolius (472.34kg x tree -1),
following by D. Tuberculatus (421.98kg x tree -1), T. corticosa (309.47kg x tree -1 ) and T. alata (313.72kg x tree -1). The figures for S. obtuse and S. siamensis, on the other hand, are only 276.52kg x tree -1 and 299.16kg x tree -1, respectively. The single-tree biomass concentrates mainly on stem of tree (approximately 50% of total tree biomass).
The percentages of biomass of branches, roots and bark account for 17.14%, 15.84% and 13.77%, respectively. In comperison, the biomass of leaves only accounts for 3.25% total of single-tree biomass. The total biomass of whole forest was created from four parts: (i) woody trees biomass (accounts for 88.72% in average), (ii) biomass of dead wood (5.40% in average), (iii) biomass of herbs and grass (3.38% in average) and (iv) litter layer biomass (2.50% in average). The total biomass of dry dipterocarp forest in Central Highlands of Vietnam (in average of all different forest types) is 12 6.71 tons x ha -1 in which 116.26 tons x ha -1 belongs to wood tree layer biomass.
References
1. Bandhu, D. 1973. Chakia project. Tropical deciduous forest ecosystem. In, L. Kern. (Ed.). Modeling forest ecosystems, pp. 39-61. EDFB-IBP-737. Oak Ridge National Loboratory, Tennessee, U.S.A.
2. Camillie Bann (2003). An economic analysis of tropical forest land use option. Cambodia. 73
3. IPCC, 2006. IPCC Guidelines for National Greenhouse Gas Inventories. Prepared by the Natinal Greenhouse Gas Inventories Programme, Eggleston H.S., Buendia L,. Miwa K., Ngara T., Tanabe Ka., (eds). Published: IGES, Japan.
4. Macdicken, KG (1997). A Guide to Monitoring Carbon Storage in Forestry and Agro-forestry Projects. Arlington, USA: Winrock International.
5. Martinez-Yrizar, A. J. Sarukhan, A. Perez-Jimenez, E. Rincon, J. M. Maass, A. Solis-Magallanes, and L. Cervantes, 1992. Above-ground phytomass of a tropical deciduous forest on the coast of Jalisco, Mexico. Journal of Tropical Ecology 8:87-96.
6. P. K. PAND, 2005. Biomass and productivity in some disturbed tropical dry deciduous teak forests of Satpura plateau, Madhya Pradesh, pp. 234-235. Tropical Ecology.
7. Singh, K.P. 1985. Biomass, nutrient and productivity structure of a stand of dry deciduous forest of Varanasi. Tropical Ecology 22: 97–105.
8. Vũ Tấn Phương (2012). Xác định trữ lượng Các bon và phân tích hiệu quả kinh tế rừng trồng Thông ba lá (Pinus kesiya Royle Ex Gordon) theo cơ chế phát triển sạch ở Việt Nam. Luận án tiến sĩ nông nghiệp. Viện Khoa học Lâm nghiệp Việt Nam.
