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作 者:卞健 江皓 孙艳艳 范俊俊 韩文学 张往祥 BIAN Jian;JIANG Hao;SUN Yan-yan;FAN Jun-jun;HAN Wen-xue;ZHANG Wang-xiang(Co-Innovation Center for the Sustainable Forestry in Southern China,College of Forest,Nanjing Forestry University,Nanjing 210037,China;Yangzhou Crabapple Gardening Limited Company,Yangzhou 225200,China)
机构地区:[1]南方现代林业协同创新中心/南京林业大学林学院,江苏南京210037 [2]扬州小苹果园艺有限公司,江苏扬州225200
出 处:《黑龙江农业科学》2020年第5期76-80,83,共6页Heilongjiang Agricultural Sciences
基 金:江苏省农业科技自主创新项目(CX(18)3076);江苏省科技计划项目(BE2017375-2)。
摘 要:为加快常绿树种细柄阿丁枫良种化进程,缓解区域性常绿阔叶行道树的结构性矛盾,运用层次分析法初步构建了细柄阿丁枫3级综合评价模型,从生长性、观赏性和抗性等方面对38株6年生细柄阿丁枫优良单株的应用价值进行了评估。结果表明:树冠茂密度、紧凑度和整齐度是影响细柄阿丁枫应用价值的主要因子。根据AHP评价结果,将38株优良单株划分为4个等级:Ⅰ级优株1株,得分最高(3.71分),干形、冠形、生长速度和耐寒程度均最优,应用价值最高;Ⅱ级优株19株(3.0~3.5分),干形、冠形、生长速度次于Ⅰ级优株,但叶色观赏价值较高;Ⅲ级优株14株(2.5~3.0分),冠幅最大,其他指标次于Ⅰ级和Ⅱ级优株;Ⅳ级优株4株(2.0~2.5分),生长速度最慢,干型和冠形观赏性能较差,但叶片较大,且部分幼叶呈红色。In order to speed up the process of fine variety of Altingia gracilipes and alleviate the structural contradiction of regional evergreen broad-leaved trees,a three-level comprehensive evaluation model of Altingia gracilipes was constructed by using AHP.The application value of 386-year-old fine single plants of Altingia gracilipes was evaluated from the aspects of growth,ornamental and Altingia gracilipes.The results showed that:the appreciation performance of the assessment models was the most important(weight coefficient Wi=0.688),followed by growth performance(Wi=0.234).12 weight coefficients of level 3 evaluation index were sorted from highest to lowest as follows:exuberance degree,compactness,uniformity,annual average increment of height,annual average increment of diameter at breast height,tree shape,health condition,color of young leaves,color of mature leaves,leaf size,crown size,leaf shape.These 38 superior trees of Altingia gracilipes were evaluated comprehensively by using this model,and then divided into four ranks:one individual who gets the highest score(3.71 points)reaches level I,12 reaches level II(3.0-1.5 points),22 reaches level III(2.5-3.0 points)and 3 reaches level IV(less than 2.5 points).
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