Influence of Planting Spacing on Mechanical Properties of Eucalyptus grandis × E. urophylla Planted in China

查看全文 作　　者：HENSON [1]Michael

机构地区：[1]Forests NSW, PO Box J19, Coffs Harbour Jetty, NSW, 2450, Australia

出　　处：《Chinese Forestry Science and Technology》索引2008年第7卷第1期,共7页

基　　金：China-ACIRA (Australian Centre for International Agricultural Research) cooperation project (FST/1999/095) ;Chinese'948' Project (No. 2005-4-73). 摘　　要：The objective of this study was to understand influence of planting spacing on mechanical properties of Eucalyptus grandis × E. urophylla planted as a potential species for solid wood products in China. Four trees at age of 13 were selected from each of 6 groups of planting spacing and a total of 24 sampling trees were selected from the Dongmen Forestry Center of Guangxi Province in China. Furthermore, a one-meter-long log from each tree was cut into small blocks for wood properties testing. MOE, MOR and compression strength parallel to wood grain were determined in accordance with Chinese standards. In addition, wood density and shrinkage properties were measured. Statistical analysis by SAS software indicated significant differences among the 6 groups of planting spacings on the air-dried density, radial shrinkage and bending MOR properties at the 0.05 level, and also on the compression strength at the 0.10 level. However, it was observed that there is no significant differences among shrinkages in tangential and volume, and MOE. 关键词：planting spacing mechanical properties DENSITY SHRINKAGE Eucalyptus grandis × E. urophylla PLANTATION

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Influence of Planting Spacing on Mechanical Properties of Eucalyptus grandis × E. urophylla Planted in China

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