40个樱花品种在南昌地区的观赏价值综合评价

Comprehensive Evaluation of Ornamental Values of 40 Cherry Blossom Varieties in Nanchang

运用层次分析法对40个樱花品种在南昌地区的观赏价值进行综合评价,约束层以开花时间、花、观赏便利度3方面,标准层设10个指标建立层次结构模型。由专家学者打分设立判断矩阵并进行一致性检验,再计算各因子的权重。权重较大的因子有树形、花冠大小、花梗长度、花量,权重分别为0.4808、0.1582、0.1082、0.0962。结果表明:得分高于4.0分的品种有雨情枝垂1个,得分为3.5~4.0有6个,得分为3.0~3.5有12个,得分为2.5~3.0有17个,得分低于2.5的有4个。江户彼岸、红粉佳人、雅樱、奖章等品种得分较高。

Using the Analytic Hierarchy Process(AHP)to comprehensively evaluate the ornamental value of 40 cherry blossom varieties in the Nanchang area,the constraint layer is based on three aspects:flowering time,flowers,and viewing convenience.The standard layer is set up with 10 indexes to establish a hierarchical structure model.Establish a judgment matrix based on expert scoring and perform consistency tes⁃ting,then calculate the weights of each factor.The factors with higher weights include tree shape,corolla size,pedicel length,and flower quantity,which are 0.4808,0.1582,0.1082,and 0.0962,respectively.The results showed that 1 variety with an evaluation score higher than 4 points,it’s Cerasus subhirtella‘Ujou⁃shidare’,6 with a score of 3.5-4.0,12 with a score of 3.0-3.5,17 with a score of 2.5-3.0,and 4 with a score below 2.5.C.spachiana f.ascendens,C.×yedoensis,C.‘Miyabi’,C.subhirtella‘Accolade’and some other varieties scored higher.