In situ and Ex situ Conservation of Commercial Tropical Trees - ITTO

181ConclusionThe total area of D. alatus plantation in Thailand is approximately 2,080 ha, ofwhich approximately 1,280 ha are used as ex situ conservation areas by theRFD. The in situ conservation of D. alatus occupies approximately 1,920 ha.Although most natural stands of D. alatus are well protected, it is theresponsibility of the Thai people to maintain all these naturally distributed stands.D. alatus has been a prominent, high economic value species along with teak,and has played an important part in the history of Thailand. It is the RFD’smain objective to increase the forested area of Thailand to 40% of the totalarea of the country. One pathway to this target of increased forest area isthrough the RFD-promoted Private Reforestation Extension Project. It is hopedthat the private sector will also play a major part in increasing ex situ conservationareas of D. alatus in the country. Several studies on D. alatus are still neededto provide useful information to enable more successful establishment of D.alatus plantations in Thailand, and this research is an essential part ofstrengthening the future ex situ conservation program for D. alatus.ReferencesBoontawee, B. 1999. Dipterocarpus alatus Plantation. In: Dipterocarpus alatus and DipterocarpsVol. III: Miscellaneous on Dipterocarps. pp.285-297. The Agricultural CooperativesPublishing of Thailand, Limited, Bangkok.Boontawee, B., N; Semsuntud, Nitiwattanachai, W & Chailertpongsa, P. 1993. Recentlydevelopment Techniques for Mass Clonal Propagation of Forest Tree Species in Thailand.In J. Davidson (Ed.). Proceedings of Regional Symposium on Recent Advances in MassClonal Multiplication of Forest Tree for Plantation Programmes, 1-8 December 1993. Bogor,Indonesia.Forest Industry Organization. 1999. Data on D. alatus plantation. Forest Industry Organization,Bangkok. (In Thai).Pukittiyacamee, P., Saelim, S., Bhodthipuks, J. & Kijkar, S. 1994. Dipterocarp seed behavior andstorage. In: Appanah, SS & Khoo, K.C. (eds.). Proceedings of the fifth Round Table Conferenceon Dipterocarps, 7-10 November 1994. Chiang Mai, Thailand. pp. 11-34.Soonhuae, P. & Limpiyaprapant, S. 1996. Root cuttings of Dipterocarpus alatus Roxb. andShorea roxburghii Roxb. in non-mist propagators. Information Note, ASEAN Forest TreeSeed Center Project. Muak Lek, Saraburi, Thailand. 9 pp.Thai Plywood Company (Limited). 1999. D. alatus plantation by Thai Plywood Company(Limited). Thai Plywood Company (Limited). (In Thai).