厦门10种主要园林灌木叶功能性状及叶经济谱分析  

Analysis on Leaf Functional Traits and Leaf Economics Spectrum of 10 Main Garden Shrubs in Xiamen

作　　者：黄小苇 连红平 王舟帆 郑庆华 游永彬 丁凌飞 林宇行 陈莹[1] HUANG Xiao-wei;LIAN Hong-ping;WANG Zhou-fan;ZHENG Qing-hua;YOU Yong-bin;DING Ling-fei;LIN Yu-xing;CHEN Ying(College of Landscape Architecture and Arts,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;Zhongmin Mingtai Group Co.,Ltd.,Xiamen,Fujian 361006,China;Xintai Construction Group Co.,Ltd.,Xiamen,Fujian 361000,China;Fujian Xinnaqiao Construction Engineering Co.,Ltd.,Xiamen,Fujian 361021,China)

机构地区：[1]福建农林大学风景园林与艺术学院,福建福州350002 [2]中闽铭泰集团有限公司,福建厦门361006 [3]鑫泰建设集团有限公司,福建厦门361000 [4]福建鑫纳侨建筑工程有限公司,福建厦门361021

出　　处：《福建农业科技》2024年第12期37-47,共11页Fujian Agricultural Science and Technology

基　　金：福建省住房和城乡建设厅科技研究开发计划项目(2022-K-199)。

摘　　要：为探究厦门市园林灌木的叶功能性状及叶经济谱规律,筛选出适生性较佳的灌木树种。选用棕竹、海桐、灰莉、鹅掌藤、朱蕉、杜鹃、红背桂、红花檵木、金边假连翘、三角梅10种厦门市常用园林植物作为研究对象,对其叶片功能性状:叶面积(LA)、比叶面积(SLA)、叶干物质含量(LDMC)、叶含水量(LWC)、丙二醛(MDA)、游离脯氨酸(PRO)、过氧化氢酶(CAT)、叶碳含量(LCC)、叶氮含量(LNC)、碳氮比(C∶N)进行测定分析。结果表明:在相关性分析中,叶片LA与MDA、LA与PRO、SLA与LWC、SLA与PRO、LCC与C∶N呈显著正相关(P<0.05),叶片LA与LCC、SLA与LNC、CAT与LWC呈极显著正相关(P<0.01);叶片SLA与LDMC、CAT与MDA、CAT与LCC呈显著负相关(P<0.05),叶片LDMC与LWC、LDMC与CAT、C∶N与LNC、C∶N与SLA呈极显著负相关(P<0.01)。冗余分析表明,产生显著影响的结构性状因子为LA、LWC、LDMC。主成分分析及隶属函数分析表明,10种植物的环境适应能力排序为朱蕉>金边假连翘>三角梅>灰莉>鹅掌藤>棕竹>红背桂>红花檵木>杜鹃>海桐。同种环境条件下不同灌木种的叶片功能性状对环境的响应机制不同,反映植物不同的生长适应策略。综合分析可知,叶片SLA大、LDMC低和LNC高的“快速投资-收益型”生长策略的朱蕉、金边假连翘和三角梅对厦门城市环境表现出较好的适应性,适合作为城市园林规划中的主要树种使用。In order to explore the leaf functional traits and leaf economic spectrum patterns of garden shrubs in Xiamen City,and to select the shrub species with better adaptability,10 commonly-used landscaping shrubs in Xiamen were selected as the research objects in this study,including Rhapis excelsa,Pittosporum tobira,Fagraea ceilanica,Heptapleurum arboricola,Cordyline fruticosa,Rhododendron simsii,Excoecaria cochinchinensis,Loropetalum chinense,Duranta erecta and Bougainvillea.The leaf functional traits such as leaf area(LA),specific leaf area(SLA),leaf dry matter content(LDMC),leaf water content(LWC),malondialdehyde(MDA),free proline(PRO),catalase(CAT),leaf carbon content(LCC),leaf nitrogen content(LNC),and carbon to nitrogen ratio(C∶N)were measured and analyzed.The results showed that in the correlation analysis,leaf LA was significantly positively correlated with MDA(P<0.05),as did LA with PRO,SLA with LWC,SLA with PRO,and LCC with C∶N.Leaf LA was extremely significantly positively correlated with LCC(P<0.01),as did SLA with LNC and CAT with LWC.Leaf SLA was significantly negatively correlated with LDMC(P<0.05),as did CAI with MDA and CAT with LCC.Leaf LDMC was extremely significantly negatively correlated with LWC,as did LDMC with CAT,C∶N with LNC,and C∶N with SLA(P<0.01).The redundancy analysis showed that the structural trait factors that had significant effects were LA,LWC and LDMC.The principal component analysis and membership function analysis showed that the environmental adaptability of the 10 plants could be ranked as Cordyline fruticosa>Duranta erecta>Bougainvillea>Fagraea ceilanica>Heptapleurum arboricola>Rhapis excelsa>Excoecaria cochinchinensis>Loropetalum chinense>Rhododendron simsii>Pittosporum tobira.Under the same environmental conditions,the leaf functional traits of different shrub species had different response mechanisms to the environment,reflecting different growth adaptation strategies of plants.The comprehensive analysis showed that Cordyline fruticosa,Duranta erecta and Bougainvil

关 键 词：叶功能性状 叶经济谱 园林绿化灌木 相关性分析 响应机制 

分 类 号：Q948[生物学—植物学]