| 摘要: |
| 为充分发挥植物在城市生态化建设中的滞尘作用，
以南京市6种常见绿化树种为研究对象，测定单位叶面积滞尘
量，并对叶表微结构特征及滞尘粒径分布进行观测、分析，结
合单株叶面积总量、年滞尘量、抗尘能力等指标计算树种的滞
尘效益综合指数，为园林植物配置提供参考。研究发现：1)6
种园林植物在单位叶面积滞尘量上存在显著差异，具体表现为
洒金桃叶珊瑚>锦绣杜鹃>红花檵木>山茶>夹竹桃>广玉兰；
2)供试树种的滞尘粒径分布范围主要在10~100μm，且PM>10
占比最高；3)植物叶片上表面的微结构特征对滞尘能力起主要
影响作用，且单位叶面积滞尘量与沟壑数量呈正相关。 |
| 关键词: 园林植物 粒径 叶表微结构 滞尘效益 园林
应用 |
| DOI： |
|
| 基金项目: |
|
| Comprehensive Analysis of Dust Retention Efficiency of Six Common Garden Plants in Nanjing |
| WANG Shuheng,ZHU Xiaoyu,TIAN Runan,WEN Shusheng |
| Abstract: |
| For better use of the dust retention function of
plants, six common landscaping tree species in Nanjing
were used as the experiment materials in this study. The
dust retention per unit leaf area and the dust particle size
were measured, and the leaf surface micro morphology was
observed. By calculating the comprehensive index, the dust
retention efficiencies of 6 tree species were compared to
provide references for the their landscape application. The
results showed that: 1) There were significant differences
in dust retention per unit leaf area among the 6 plants,
which were ranked as Aucuba japonica >Rhododendron
pulchrum>Loropetalum chinense>Camellia japonica>Nerium
oleander>Magnolia grandiflora. 2) 6 tree species mainly captured
the dust particles in size of 10-100μm, and the proportion of
PM>10 was the highest. 3) The microstructure characteristics
of the upper epidermis produced the major influence on dust
retention ability, and the dust retention per unit leaf area had a
positive correlation with the number of leaf gullies |
| Key words: landscape plant dust particle size microstructure of
leaf epidermis dust retention efficiency landscape application |
