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Major decay types recognised in an extremely durable timber species Belian (Eusideroxylon zwageri) from East Malaysia


, : Major decay types recognised in an extremely durable timber species Belian (Eusideroxylon zwageri) from East Malaysia. Proceedings of the TRTTC/STA Forest Products Seminar ' 96, 11-13 March 1996, Kuching Hilton Hotel: 162-173

Belian (Eusideroxylon zwageri) is highly regarded among the naturally durable Malaysian hardwoods, and is therefore favoured for use in ground-contact as untreated poles, posts and railway sleepers.

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Related references

Anonymous, 1970: Report on a consignment of Belian (Eusideroxylon zwageri) from Sabah. FPRL consignment No. 1370. Gives results from tests made on 5 logs, cut from trees 100-124 ft high. The wood is hard and heavy. Long drying times make kiln-drying from the green condition uneconomic. The timber is almost impossible to impregnate with preservative, but is ve...

Syafii, W.; Samejima, M.; Yoshimoto, T., 1987: The role of extractives in decay resistance of ulin wood (Eusideroxylon zwageri T. et B.). Eusiderin, a neolignan, was identified as a major component of the n-hexane soluble fraction of the E. zwageri acetone extract, which was the most effective fraction in reducing the mycelial growth of Coriolus versicolor and Tyromyces polutris [?...

Syafii, W.; Samejima, M.; Yoshimoto, T., 1988: The role of lignin on decay resistance of ulin (Eusideroxylon zwageri T. et B.) to wood-rotting fungi. Delignification of E. zwageri samples using the chlorite method was much slower than that of Fagus crenata or Cryptomeria japonica. Delignified E. zwageri wood meal showed much greater weight loss after exposure to Coriolus versicolor or Tyromyces...

Kiyono, Y.; Hastaniah, 2000: Growth of Eusideroxylon zwageri seedlings and silvicultural changes in logged-over and burned forests of Bukit Soeharto, East Kalimantan, Indonesia. Ulin (Eusideroxylon zwageri) is an Indonesian ironwood species whose growing stock has decreased due to over-exploitation. Ulin trees occur in lowland forests as scattered individuals in Kalimantan and naturally regenerated seedlings are usually r...

Costa, E.W.B.D.Aplin, T.E.H., 1959: Project P.13. The natural durability of timber. Sub-project P.13-5. The comparative resistance of timber species to decay in accelerated laboratory tests. Progress Report No. 2. The resistance to decay in laboratory tests of twenty-three durable or moderately durable Au. Soil-block methods, with 8 fungi, were used to test durability of 19 Eucalyptus spp., Syncarpia laurifolia, S. hillii, Tristania suaveolens, T. conferta, Quercus alba and Pseudotsuga taxifolia. S. laurifolia and E. cloeziana were the most and Q. a...

Kurokawa, H.; Yoshida, T.; Nakamura, T.; Lai, J.; Nakashizuka, T., 2003: The age of tropical rain-forest canopy species, Borneo ironwood (Eusideroxylon zwageri), determined by 14C dating. Using 14C dating, the lifespan and growth rate of Borneo ironwood (Eusideroxylon zwageri, Lauraceae), which is a canopy tree species with extremely durable and decay-resistant wood distributed in tropical rain forests of Southeast Asia, were studi...

Heo, K.; Oginuma, K., 1994: Karyomorphology of Eusideroxylon zwageri (Lauraceae). The chromosome number and morphology of Eusideroxylon zwageri, the only species of the genus, was investigated for the first time. Results showed that, although Eusideroxylon is similar to other Lauraceae in karyotype at metaphase as well as in ch...

Syafii, W.; Yoshimoto, T.; Samejima, M., 1985: Neolignans from the heartwood of ulin (Eusideroxylon zwageri). Three neolignans were isolated in acetone extracts of heartwood from samples collected in central Kalimantan, Indonesia. One neolignan was identified as eusiderin; 2 compounds were new neolignans, named eusiderin A and B.

Koopman, M.J.F.; Verhoef, L., 1938: Eusideroxylon zwageri, the Iron-wood of Borneo and Sumatra.. A general account of the distribution, natural and artificial regeneration, and wood of Eusideroxylon zwageri T.

Harbagung, 1984: Site index model for ulin (Eusideroxylon zwageri). Growth data from 5-38 yr old plantations in South Sumatra were used to derive a regression equation for predicting site index from top ht. and age (after Adler, D. 1980).