12种速生人工林树种幼龄材的室内耐腐性试验

Laboratory Decay Resisting Test of Young Timber of 12 Fast Growing Species

对广东 12种速生人工林树种幼龄材的耐腐性进行了室内试验 ,检验了不同树种受彩绒革盖菌(Coriolusversicolor)和密粘褶菌 (Gloeophyllumtrabeum )侵染的失重率 ,并根据GB/T1394 2 .1— 92标准进行了分级。结果表明 ,速生树种幼龄材多属于耐腐以下等级 ,地面堆放寿命在 5年以下 ;木材失重率与木材密度无明显相关性 ;同一树种树龄大的失重率明显低于树龄小的 ;菌种对木材失重率有明显影响。

Laboratory decay resisting test of 12 young timber fast - growing species was conducted, the test fungus were Coriolus versicolor and Gloeophyllum trabeum, weight percent losses (WPL) were measured, and classif ication was conducted according to GB/T13942.1—92. The result showed that, the natural durability of fast growing species belonged to durable or slightly than durable level, density was not relevant with WPL, and for the same species, WPL of the o ld trees were obviously less than that of young trees.