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许多森工企业反映柞材积调查数据与商品材产量差额悬殊。为探其究竟,曾在上甘岭林业局开展了柞材积与商品材出材量关系的调查研究工作。 从各林场各种立地条件机械抽取216株伐倒区分量测结果看,病腐株数达到458％;腐朽材积为582％。 大径木(34cm)的病朽株数占91％,病腐材积占86％;有的大径木甚至一腐至梢。调研证明,差异悬殊的现象存在,应该加强对立木质量的调查。
Many forestry enterprises reflect the survey data of oak timber production and the difference between the output of timber products. In order to explore it, in Shangganling Forestry Bureau to carry out the oak timber product and timber volume of the relationship between the research work. From all kinds of site conditions of various forest mechanical extraction of 216 strains cut down the results of division, the number of sick corps reached 458%; decay volume of 582%. Large diameter wood (34cm) accounted for 91% of the number of diseased, sick corm occupy 86% of the total; some large diameter wood and even rotten to shoot. Research shows that the phenomenon of disparity exists, we should strengthen the investigation of the quality of standing wood.