PDF《间体倒》

修剪树木的对与错 D的 .

在展开修剪工作前,须清楚定下修剪的目的. q不要过度修剪;

如非需要,不应修剪. - v o o E O

4 对 .有需要时才修剪. 只 不要 q岩修剪幅度应尽量减低;

并且应避兔不必要地修剪成熟或衰老的 .It is essential to establish clearly defined objectives before commencement of any pruning operation. ?

00 not prune excessively or unnecessarily. Oo's ? Prune as necessary. Oon'ts ? Keep annual pruning to the minimum and do not prune mature tree or over mature tree as far as oracticable. 信1 0) 见三Cq清理树冠 Crown Cleaning ',

4 '- ~ 错 q狮尾式修剪 Lion Tailing q截顶 Topping 叮";

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J - ,1' H咽, , 的rF 刀 枯枝/有病害的树枝(清除) 修法Dead/Diseased Branches (陀move) 剪g、2 /

4 f/ Q. 〉、 . ?COEEOO 断枝(清除) Broken Branches (remove) . 〉 目的q提升树冠 Crown Raising 树冠 ι A { LE Canopy 树冠比 服I!盟 总高度 Live Crown 沁军| 盟Overall Ratio 注意! 讨会height Caution! 才剖别叫串"IL nH O m 幽恤握主白EZ=ESO冠暇ωC3q枝领外围 Edge of Branch Collar q留下枝柄 q过大的剪切口 Stub remaining Large Pruning Cut O V ω

九、」已」ω应该在哪里修剪?树枝的枝皮脊 Branch Bark Ridge q平贴树干切割 Flush Cut 注意! if~智Caution! 斗 在枝领边 缘下切口 Cut branch at edge of collar 间体倒立〉〉如何妥善地修剪树木?q三刀法 3-point Cut @ 事二铝-用以剪除树技 枝领 Branch Collar l 这… 切勿剪入树枝的 枝皮脊或枝领内 Do not cut into the Branch Bark Ridge or Branch Collar q扯脱树皮 Bark Tearing ? 锯齿状的伤口 Jagged Wounds . l ..c C I 0> 的自q京.l..è m o 量监益 > After . ralslng 清除较低的树枝,藉此增加 树冠比 地面与枝叶的垂直距离,并 太低 须保留约 60% 的树冠比 Live crown ratio is Remove lower branches to too low increase vertical clearance from ground level and keep a live crown ratio around 60% A V H

3 O O C E

3 ω u E O V 第一错-探取枝底切法,以兔扯脱树皮 First cut to prevent tearing 备忘 Note 」 已志请浏览 http://www.devb.gov.hk/greening/tc/preservation/guidelines.pdf 网址,与「修剪树木的一般指引」一起参照. ~而 最三错q用以剪去留下的枝柄, 1.日切勿剪入树枝的枝皮脊或枝领 Please read in conjunction with 'Guidelines on Pruning' at http://www.devb.gov.hk/greening/en/preservation/guidelines.pdf O 回Final cut outside branch collar to 已move stub 参考资料 References Gilman, E. F.,"An IIlustrated Guide to Pruning", 2nd edition, Delmar Publishers, Albany NY,

2002 Gilman, E. F., Lilly S.J.,"Best Management Practices- Tree Pruning", International Society of Arboriculture, US,

2002 Har巾, R.W., Clark, J.R., & Matheny, N.P.,"Arboriculture: Integrated Management of Landscape Trees, Shrubs, and Vines", 4th edition, Prentice Hall, Upper Saddle River, NJ,

2004 Hazell, J., et al.,"Guidance Note 8- Framework For Tree Work Contracts", The Arboricultural Association, UK,

2009 Tree Care Industry Association,"American National Standard for Tree Care Operations- Tree, Shrub, and Other Woody Plant Maintenance- Standard Practices (Pruning) (A300, Pa付1 )", Tree Care Industry Association, Manchster, NH,

2007 绿化、围境及树木管理组 画画展局 Greening, Landscape and Tree Management Section Development Bureau

2010 〉 〉 工