郑州市园林植物滞留大气颗粒物能力的研究  

Study on the atmospheric particle-retaining capability of garden plant in Zhengzhou

作　　者：齐飞艳[1] 朱彦锋[1] 赵勇[1] 樊巍[2] 高喜荣[2] 白轶斌 

机构地区：[1]河南农业大学林学院,河南郑州450002 [2]河南省林业科学研究院,河南郑州450003 [3]新郑市园林局,河南新郑451100

出　　处：《河南农业大学学报》2009年第3期256-259,共4页Journal of Henan Agricultural University

基　　金：国家"十一五"科技支撑计划(2006BAD03A17);河南省科技攻关项目(0624090010)

摘　　要：测定了郑州市的5种园林植物叶面颗粒物附着密度,利用扫描电镜观察比较了各测试树种叶表面微形态.结果表明,颗粒物附着密度在不同树种之间存在差异,各植物叶片颗粒物附着密度由高到低依次是海仙花>枇杷>广玉兰>垂柳>女贞.大气颗粒物主要附着在叶片上表面,叶片表面滞留大气颗粒物能力由高到低的微形态结构依次是绒毛>沟槽>小室>条状突起.这些微形态结构越密集、深浅差别越大,越有利于滞留大气颗粒物.深度清洗后叶片表面仍能滞留小粒径的颗粒物.With five garden plant species in Zhengzhou City as test materials, the adhesion density of atmospheric particles on leaf surface is tested and the micro-configurations of leaf epidermis are observed through scanning eletron microscope（SEM）. The results showed that the adhesion densities of atmospheric particles in five researching plants were significantly different, and the adhesion densities of particles in the atmosphere decreased in the order of Weigela coraeensis 〉 Eriobotrya japonica 〉 Magnolia grandiflora 〉 Salix babvlonica 〉 Ligustrum lucidum. The particles were mainly adhered on upside leaf surface and the particle-retaining capacities of the micro-configurations of leaf epidermis were decreased in the order of villus 〉 groove 〉 cell 〉 strip protuberance, and the particle-retaining capacity was higher when the micro-configurations were denser and the fall between them was larger. The leaf epidermis can hold some small particles by deep rinsing treatment.

关 键 词：园林植物 大气颗粒物 叶表面 微形态 

分 类 号：S718[农业科学—林学]