<![CDATA[Ramin is one of slow growing spesies, have a medium until big measurement, have a silindris stem, high total reach 40-50 m with DBH reach 120 cm. The purpose of this research is to know association between ramin (Gonystylus bancanus (Miq.) Kurz) and dominan species in IUPHHK-HA PT Diamond Raya Timber, Riau. Vegetation analysis used combination method between strip and line compartment method. Result showed that no one of dominan species have association with Gonystylus bancanus in tree and pole level at IUPHHK-HA PT DRT. Although there is no species in pole level that have association with Gonystylus bancanus, but there is tendency that Gonystylus bancanus have positive association with Palaquium obovatum, Urandra scorpioides, Carallia brachiata, and have negative association with Artocarpus teysmanii and Eugenia sp. At tree level Gonystylus bancanus have a tendency that have positive association with Shorea uliginosa, Palaquium obovatum, Eugenia sp., Horsfieldia glabra, and have negative association with Aglaia rubiginosa and Mangifera foetida. Keywords: Association, combination, dominan species, Gonystylus bancanus, growing spesies]]>
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