苗木整形修剪课件.pptx
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1、第五章园林植物整形与修剪 n n主要内容主要内容主要内容主要内容n n概念概念n n整形修剪的目的与原则整形修剪的目的与原则n n整形修剪工具整形修剪工具n n整形修剪技艺整形修剪技艺n n园林中各种用途树木的园林中各种用途树木的整形与修剪整形与修剪整形修剪的概念n n“修剪”指对树木的某些器官(枝、叶、花、果等)加以疏删或剪截,以达到调节生长、开花结实目的和措施。n n“整形”指用剪、锯、捆绑、扎等手段,使树木生长成栽培者所希望的特定形状的措施。n n整形是目的,修剪是手段。第一节第一节 整形修剪的目的与原则整形修剪的目的与原则Why Prune一、整形修剪的目的一、整形修剪的目的n n调控
2、树体结构:n n调控开花结实:n n调控通风透光:n n平衡树势:控制与调整树体结构,避免不安全隐患控制树体生长,增强景观效果调节枝干方向,创造树木的艺术造型提高移栽木的成活率促使衰老树的更新复壮The objective of pruning is to produce strong,healthy,attractive plants.二、整形修剪的原则二、整形修剪的原则 n n服从树木景观配置要求n n遵循树木生长发育习性:n n根据栽培的生态环境条件生长发育时期芽着生的部位分枝特性第二节第二节 整形修剪工具整形修剪工具 Pruning Tools弓锯弓锯具手锯手锯具折叠锯折叠锯具钳工工长
3、柄剪柄剪高枝剪高枝剪铁砧剪铁砧剪Pruning Tools 工具是由修剪枝条工具是由修剪枝条的尺寸决定的尺寸决定n nThe choice of which tool to use depends The choice of which tool to use depends largely on the size of branches to be pruned largely on the size of branches to be pruned and the amount of pruning to be done.and the amount of pruning to be do
4、ne.Pruning ToolsPruning Toolsn nUse pole pruners to cut branches beyond Use pole pruners to cut branches beyond reach.reach.Maintain Pruning Tools 工具保工具保养养n nKeep tools sharpKeep tools sharp.保保持锋利持锋利n nClean and sanitize Clean and sanitize tools tools 保持清洁保持清洁刮刀刮刀第三节第三节整形修剪技艺整形修剪技艺n n整形修剪时期n n整形方式n
5、n修剪方法一、整形修剪时期一、整形修剪时期When to Prune 1冬季修剪冬季修剪(体眠期修剪体眠期修剪)落叶树从落叶开始至春季萌发修落叶树从落叶开始至春季萌发修剪称为冬季修剪或休眠期修剪。剪称为冬季修剪或休眠期修剪。2 2夏季修剪夏季修剪(生长期修剪生长期修剪)夏季修剪在生长季节进行,故也夏季修剪在生长季节进行,故也称为生长期修剪。称为生长期修剪。Usually the best time to prune is in the fall or winter.秋冬季是修剪的秋冬季是修剪的秋冬季是修剪的秋冬季是修剪的最佳最佳最佳最佳季节季节季节季节常绿针叶树常绿针叶树Conifersn n
6、Conifers may be Conifers may be pruned pruned any time of any time of yearyear,but pruning,but pruning during the dormant during the dormant season may minimize season may minimize sap and resin flow sap and resin flow from cut branches.from cut branches.n nDead branches,of Dead branches,of any spec
7、ies,can be any species,can be removed any time of removed any time of the year.the year.观花树木观花树木Flowering Treesn nFlowering trees and Flowering trees and shrubs should be shrubs should be pruned during the pruned during the dormant dormant seasonseason休眠休眠休眠休眠季节季节季节季节 for the same for the same reaso
8、ns stated above.reasons stated above.However,to preserve However,to preserve the current years the current years flower crop,the flower crop,the following schedule following schedule should be followed:should be followed:Flowering Trees早春开花类早春开花类n nTrees and shrubs that Trees and shrubs that flower
9、in early spring flower in early spring should be pruned should be pruned immediately after immediately after floweringflowering;开花后剪开花后剪开花后剪开花后剪Flowering Trees夏季或秋季开花类夏季或秋季开花类n nTrees and shrubs that Trees and shrubs that flower in the summer flower in the summer or fall always should or fall always
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