基于AHP法的延安城区乔木绿化树种评价与分析  

Evaluation and Analysis of Tree Planting Species in Yan′an City Based on AHP

作　　者：孙杨朝 杨艳艳 吴云霄[1,2] 冯睿梓 程舒婷 SUN Yangzhao(College of Life Science,Yan′an University,Yan′an 716000,China)

机构地区：[1]延安大学生命科学学院,陕西延安716000 [2]延安市生态恢复重点实验室,陕西延安716000

出　　处：《安徽农学通报》2021年第18期75-78,共4页Anhui Agricultural Science Bulletin

基　　金：国家自然科学基金项目(31860110);延安市科技计划项目(SL2019ZCSY-010);延安大学科研计划项目(YDY2020-28);延安大学大学生创新创业训练计划项目(D2019108)。

摘　　要：为合理选择乔木绿化树种,促进延安城市生态环境建设,在实地调查和问卷调查的基础上,利用层次分析法(AHP法)对延安城区主要乔木绿化树种进行了系统分析评价。结果表明:(1)延安城区乔木绿化树种共53种,其中落叶树种明显多于常绿树种,乡土树种占乔木绿化树种的30%;(2)抗逆性的权重最大,明显高于观赏性和生长性,观赏性和生长性的权重差别不明显;(3)综合评价结果显示,87%以上的乔木树种评价等级为良和中等,为优和差的分别为3%、9%。因此,在今后延安城市绿化乔木树种的选择时,应加大乡土树种的比例,特别应注意重视树种的抗逆性,加强后期的养护和管理。The main purpose of this study is to select the tree species reasonably and promote the ecological environ⁃ment of Yan′an city.Data needed for the experiment were obtained through field surveys and questionnaires.Ana⁃lytic hierarchy process(AHP)was used to analyze and evaluate the main tree species in Yan′an city.The results showed that:(1)There were 53 species of tree greening species in Yan′an city.Deciduous tree species were signif⁃icantly more than evergreen tree species,and native tree species accounted for 30%of tree greening tree species;(2)The weight of stress resistance was the largest which was significantly higher than that of ornamental and that of growth.There is no significant difference between the weight of ornamental and growth;(3)The number of tree spe⁃cies with good and medium grades accounts for more than 87%of the total greening species.The proportion of tree species with excellent comprehensive evaluation grade is 3%and the proportion of poor evaluation grade is 9%.Therefore,it is necessary to increase the proportion of native tree species in the selection of urban greening tree spe⁃cies in Yan′an.Particular attention should be paid to the resistance of tree species.At the same time,the later main⁃tenance and management should be strengthened.

关 键 词：延安 乔木树种 层次分析法 景观评价 

分 类 号：S731.2[农业科学—林学]