4种校园常见观赏灌木滞尘效果分析  

An Analysis on the Dust-retention Effect of Four Kinds of Common Ornamental Shrubs on Campus

作　　者：杨有芹 余燕[1] YANG Youqin;YU Yan(College of Life Sciences,China West Normal University,Nanchong Sichuan 637009,China;College of Chemistry and Life Sciences,Chuxiong Normal University,Chuxiong Yunnan 675000,China)

机构地区：[1]西华师范大学生命科学学院,四川南充637009 [2]楚雄师范学院化学与生命科学学院,云南楚雄675000

出　　处：《西华师范大学学报（自然科学版）》2018年第1期38-42,共5页Journal of China West Normal University(Natural Sciences)

摘　　要：作者利用楚雄师范学院校园内种植范围较广的鹅掌柴、红花继木、火棘、锦绣杜鹃植物的叶片滞尘效果,以期为校园植物配置提供理论依据。采用差重法计算4种植物的单位叶面积滞尘量,并从各植物的叶片表面结构、叶片横切结构、叶柄横切结构来分析造成滞尘效果差异的原因,结果表明鹅掌柴、红花继木、火棘、锦绣杜鹃的单位叶面积滞尘量分别为1.51±0.03 g·m-2、1.32±0.04 g·m-2、1.13±0.05 g·m-2、1.46±0.05 g·m-2,滞尘效果受叶片表面结构、叶片厚度、维管束类型等影响,鹅掌柴的单位叶面积滞尘量相对较高,火棘的相对较低。It is hoped that a theoretical basis can be provided for the campus plant configuration by analyzing the dust-retention effect of four widely planted ornamental shrubs at Chuxiong Normal University.The four plants are Schefflera octophylla,Loropetalum chinense var.rubrum,Pyracantha fortuneana and Rhododendron pulchrum.Weight difference methods are used to evaluate the dust retention quantity per unit leaf area of the four plants.The causes that lead to the difference are discussed from the aspects of leaves surface structures,stomata,transections of lamina and petiole.The results show that the dust retention quantity of Schefflera octophylla,Loropetalum chinense var.rubrum,Pyracantha fortuneana and Rhododendron pulchrum is 1.51±0.03g.m-2,1.32±0.04g.m-2,1.13±0.05g.m-2 and 1.46±0.05g.m-2 respectively.The effect is affected by several factors such as the structure of leaves surface,the size and density of stomata,the vascular bundle type and so on.The dust retention quantity of Schefflera octophylla is relatively higher whereas that of Pyracantha fortuneana is relatively lower.

关 键 词：鹅掌柴 红花继木 火棘 锦绣杜鹃 滞尘 叶片解剖结构 

分 类 号：Q948.116[生物学—植物学] X173[环境科学与工程—环境科学]