伴生树种对人工林木荷材性的影响  

Effects of associated tree species on wood properties of Schima superba plantation

作　　者：林金国[1] 徐永吉[2] 陆继圣[1] 陈慈禄 陈金明 

机构地区：[1]福建农林大学材料工程学院,福建福州350002 [2]南京林业大学木材工业学院,江苏南京210037 [3]福建省顺昌县林业局,福建顺昌353200 [4]福建省林业科学技术推广总站,福建福州350003

出　　处：《南京林业大学学报（自然科学版）》2008年第2期59-62,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：福建省自然科学基金资助项目(130110024);福建省高等学校新世纪优秀人才支持计划(200705)

摘　　要：对不同伴生树种人工林木荷木材物理力学性质和化学组分进行了测定和分析,结果表明:伴生树种马尾松、杉木可提高人工林木荷木材密度、干缩系数和力学强度及其波动性,且马尾松的影响大于杉木;马尾松使木荷的差异干缩降低,而杉木使其差异干缩提高;伴生树种马尾松和杉木对人工林木荷木材绝大部分物理性质指标影响不显著,马尾松对人工林木荷木材绝大部分力学强度指标的影响极显著或显著,而杉木对人工林木荷木材的力学强度除弦面抗劈力外,其余指标影响不显著;马尾松使人工林木荷木材抽出物含量、纤维素含量和木素含量降低,使人工林木荷木材戊聚糖含量提高,而杉木对木荷的影响正好相反。Physical and mechanical properties as well as chemical composition of Schima superba wood from plantation with different associated tree species were determined and analyzed in this paper. The results showed that associated tree species either Masson pine or Chinese fir, raised the density, coefficient of shrinkage, mechanical strength and their wave nature for Schima superba wood from plantation. Furthermore, Masson pine affected more heavily on density, coefficient of shrinkage and mechanical strength for Schima superba wood from plantation than Chinese fir did. As associated tree species, Masson＇s pine reduced ratio of tangential shrinkage to radial shrinkage while Chinese fir raised it for Schima superba wood from plantation. Associated tree species, either Masson pine or Chinese fir, didn＇t affect significantly on most indexes of physical properties for Schima superba wood from plantation. Masson pine affected significantly on most mechanical strength indexes of Schima superba wood from plantation while Chinese fir didn＇t affect significantly on most mechanical strength indexes of Schima superba wood from plantation except for cleavage strength in tangential section. Masson pine as associated tree species reduced nitric acid-alcohol cellulose content, Klason lignin content, extractive content but it raised pentosan content of Schima superba wood from plantation while Chinese fir as associated tree species affected inversely on chemical composition of Schima superba wood from plantation.

关 键 词：伴生树种 人工林木荷 材性 

分 类 号：S781.29[农业科学—木材科学与技术]