贡嘎山不同海拔峨眉冷杉叶片生态解剖结构特性研究  

An Eco-anatomical Study on Abies fabri Leaves at Gradient Elevation in Gongga Mountain

作　　者：陈艳艳 黄轩 黄晓霞[1,2] 程小毛[1,2] Chen Yanyan;Huang Xuan;Huang Xiaoxia;Cheng Xiaomao(College of Landscape Architecture and Horticulture,Southwest Forestry University,Kunming Yunnan 650233,China;Southwest Landscape Architecture Engineering Research Center of State Forestry and Grassland Administration,Southwest Forestry University,Kunming Yunnan 650233,China)

机构地区：[1]西南林业大学园林园艺学院,云南昆明650233 [2]西南林业大学国家林业与草原局西南风景园林工程技术研究中心,云南昆明650233

出　　处：《西南林业大学学报（自然科学）》2020年第6期160-165,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家自然科学基金项目(31560217)资助;国家自然科学基金项目(31760197)资助;云南省高校重点建设学科(风景园林学)建设项目资助;云南省高校科技创新团队支持计划资助。

摘　　要：对四川省贡嘎山东坡2800、3000、3200、3500、3800 m不同海拔梯度下的峨眉冷杉叶片进行解剖,比较其结构特征,探究不同海拔高度下峨眉冷杉叶片的生态适应情况。结果表明:当海拔3000 m附近,植物叶片总厚度与叶肉结构中栅栏组织、海绵组织的厚度均达到最大值,叶片表皮各组织结构变化趋势不一致,但相关性分析结果显示,叶片上表皮、下表皮及角质层的厚度3项解剖结构两两之间均存在显著或极显著的正相关关系。在不同的海拔梯度下环境极其复杂,由此会导致峨眉冷杉叶片的结构差异性,这种差异性说明了植物在一定程度上对环境的适应。To study the ecological adaptation of Abies fabri leaves at different altitudes(2800,3000,3200 m,3500 m and 3800 m)on the east slope of Gongga Mountain,Sichuan Province,the leaf anatomical characteristics of A.fabri were investigated.The results showed that at the altitude 3000 m,the total thickness of leaf,spongy mesophyll thickness and the thickness of palisade reached the maximum.The changes of epidermis structure were not consistent.However,the correlation analysis showed that there was a significant correlation between the thickness of upper epidermis,lower epidermis and cuticle.The environmental conditions are complex along with different altitudes,which resulted in the differences of the leaf anatomical characteristics of A.fabri.These differences of the plant could lead to a good adaptation to the environment changes in certain degree.

关 键 词：峨眉冷杉 海拔梯度 叶片 解剖结构 

分 类 号：Q944.5[生物学—植物学]