【摘要】 采用蒸干称重法和显微观察法对深圳市28种常见园林绿化植物的滞尘能力及部分植物的滞尘方式进行了初步研究。单位叶面积滞尘量的测定结果表明,针状叶类乔木中:龙柏﹥木麻黄;阔叶类乔木中:麻楝>霸王棕>黄花夹竹桃>海枣>大花紫薇>长芒杜英>椰子>紫檀;灌木类中:紫薇>金叶榕=小蜡树>黄花马缨丹>锈鳞木犀榄>红花檵木>龙船花>散尾葵>紫雪茄花>大佛肚竹>四季桂>朱槿>棕竹>软叶刺葵>朱蕉;草本类中:中国文殊兰>花叶艳山姜>蔓花生。以显微观察比较叶片滞尘能力有显著差异的种类,紫薇、金叶榕、红花檵木和朱蕉的滞尘方式分别以颗粒物堆叠式、块状层结式、颗粒镶嵌式及零星嵌入式为主。研究筛选出的常见园林绿化植物中滞尘能力强的种类,可为相似大气环境的亚热带城市绿化提供优先选择,使其成为有效改善空气质量的生物基本元素。更多还原

【Abstract】 The quantification study of dust retention capacity on landscape plants can offer an academic direction to the arrangement of landscape plants cultivated in city,and it is also important for improving dust retention effects of the urban green lands.In this paper,the dust retention capacity of 28 landscape plant species and the corresponding manner of retention of some plants were studied.The results of dust retention of all the species indicated that first,between needle formed species,Sabina chinensis(L.) Ant.cv ’Kaizuca’>Casuarina equisetifolia L.ex Forst.;second,among broadleaf tree species,Chukrasia tabularis A.Juss>Bismarckia nobilis Hildebr.et.H.Wendl.>Thevetia peruviana(Pers.) Schum>Phoenix dactylifera L.>Lagerstroemia speciosa(L.) Pers.>Elaeocarpus apiculatus Mast.>Cocos nucifera L.>Pterocarpus indicus Willd.;Third,among scrubs,Lagerstroemia indica L.>Ficus microcarpa L.f.cv ’Golden leaves’>Ligustrum sinensis Lour.>Lantana camara L.cv’Flava’>Olea ferruginea Royle>Loropetalum chinensis(R.Br) Oliv.var rubrum Yieh>Ixora chinensis Lam.>Chrysalidocarpus lutescens H.Wendl.>Cuphea articulata.>Bambusa vulgaris Schrad.et Wendl.cv ’Wamin’>Osmanthus fragrans Lour.cv ’Everaflorus’>Hibiscus rosa-sinensis L.>Rhapis excelsa(Thunb.) Henry.ex Rehd.>Phoenix roebelenii O’Brien>Cordyline fruticosa(L.) Cheval.;and last,among grass,Crinum asiaticum L.var sinicum Baker>Alpinia zerumbet(Pers.) Burtt et Smith cv’Variegata’>Arachia duranensis A.Krapollickas et W.C.Gregory.In addition,microscope was used to observe the leaves and retention manners were found of particulate matter stack-on in the leaves of Lagerstroemia indica L.,block stratification in Ficus microcarpa L.f.cv’Golden leaves’,studding in Loropetalum chinensis(R.Br)Oliv.var rubrum Yieh and studding with scattered scale in Cordylinefruticosa(L.) Cheval.The different retention effect among the plants is mainly because of the structure of the leaves and also due to the manner of retention.The above-mentioned results are also useful for the southern asian tropical urbans with similar atmosphere.更多还原