인도네시아産 未利用 樹種의 木材性質(Ⅲ)

Studies on the Wood Properties of Lesser-Known Species Grown in Indonesia (Ⅲ): The Fundamental Wood Properties of Kebambang, Bawang-Bawang and Garu Buaya

This study was carried out to investigate the wood properties fur development the proper uses of lesser-known tree species. The tested species are Kebambang(Pentace sp.), Bawang-bawang(Dysoxylum alliaceum Bl.), Garu buaya(Gonysrylus brunescens A. Shaw) grown in Indonesia. Fundamental wood properties such as anatomical, physical, mechanical and chemical properties and characteristics related to wood processing were examined. The results are summarized as follows ; The woods of these species are diffuse porous, coarse textured, and interlocked grained. The heartwood of Kebambang is distinguished clearly to the sapwood, but the heartwood of other species are not distinguished clearly to the softwood. The woods of Kebambang and Bawang-bawang have the moderate weight density and the low strength properties, but Garu buaya has the high weight density and the high strength properties. The woods of these species has high shrinkage. The sawing characteristics of Kebambang are excellent, but the other species are moderate. The machining characteristics by planer and drying characteristics of these species are moderate. These woods has poor characteristics in bending processing and decay durability. The wood of Bawang-bawang has high content of the extractives and lignin.