雷州半岛桉树无性系抗风性的研究.pdfVIP

林 业 科 学 研 究　2006, 19 (4) : 532 ～536 F ores t R esea rch 　　文章编号 : 100 11498 (2006) 04 053205 雷州半岛桉树无性系抗风性的研究 朱成庆 (东北林业大学 ,黑龙江 哈尔滨 　150040) 关键词 :桉树无性系 ;形质指标 ;林龄 ;造林密度 ;风害率 中图分类 : S79239 文献标识码 : A Study on the W indresistance Tra its of E u ca lyp tu s C lones in L e izhou Pen in sula ZHU Cheng qing (Northeast Forestry Un iversity , H arb in 150040 , H eilongj iang , Ch ina) Ab stract:On Ju ly 23rd 2003 , L eizhou Pen in su la wa s attacked by typ hoon “IMBUDO ”, when the au thor investigated the ca p acity of w ind re ssitance of 27 E uca lyp tus clones and different aged stand s of E. u rop hy lla U 6, and E. ABL 12 W 5 clone s. Several m ethod s including comp arison , variance analysis, and regre ssion analysis, were u sed to analyze the relation sh ip be tween grow th p eriod, stand den sitiy, direction , and the characteristic s of E uca lyp tus clones and w indresistance. The re su lts showed that the w indre sistance of E uca lyp tus clones was clo sely correlated w ith the age, den sity, and direction of the stand. The difference of clone s in tree height, DBH increm ent and timber den sity led to the sign ificantly difference in w indresist ance. The follow ing E cua ly tp us clones w ith strong w indre sistance were selected: MJ4 1, MJ53, MJ57 , MJ43, MJ45 , W 5 , EC1,W 6,W 2 , and ZU6. Key words: E uca lyp lus clone s; form quality index; stand age; stand den sity; w ind dam age p ercentage ( ) 桉树 E uca lyp lus 原产于澳大利亚 ,在我国引种 EC 1等 8个抗风性较强的优 良无性系 ,但都未对桉 已有 100余年的历史 ,在我国东南沿海地区广泛种 树无性系的木材密度 、种植株行距与抗风性之间的 植 , 由于这一地区属台风多发地区 ,桉树无性系抗风