Chin J Plan Ecolo ›› 2015, Vol. 39 ›› Issue (7): 736-745.

• Orginal Article •

Dust capturing capacities of twenty-six deciduous broad-leaved trees in Beijing

FAN Shu-Xin1, YAN Hai1, QI Shi-Ming-Yue1, BAI Wei-Lan2, PI Ding-Jun3, LI Xiong1, DONG Li1,*()

1. 1Beijing Laboratory of Urban and Rural Ecological Environment, College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China
2China Urban Construction Design & Research Institute Co. Ltd., Beijing 100120, China
3Urban Administration and Control Center of Chaoyang District, Beijing 100020, China
• Online:2015-07-01 Published:2015-07-22
• Contact: Li DONG
• About author:

# Co-first authors

Abstract: Aims Aiming at providing basic informations on dust capturing capacity of different tree species and criterions for selecting trees in landscape design, this study selected 26 deciduous broad-leaved tree species widely used in urban landscaping in Beijing to measure the dust capturing both in field and indoor experiments. Methods The dust deposition per unit leaf area of each species was quantified by determining the mass difference before and after the treatment of blades. The dust deposition per leaf and plant were further calculated for each species. Based on the dust capturing capacity measured in three different units, cluster analysis on different tree species was carried out from distinct dimensions. Important findings Results showed that the dust capturing capacity differed significantly among tree species, and the ranking changed with measurement units selected in the experiments. For different specific evaluation focuses, choosing a diverse unit combination as clustering factor, the 26 deciduous broad-leaved tree species were broadly divided into different categories representing different dust capturing capacity level. Dust capturing capacity was closely related to the surface characteristics of leaves, the dust capturing method, the plant structure, the leaf amount of whole plant, the dust content of the environment, etc. Therefore, multiple factors should be taken into account in the assessment of dust capturing capacity of different tree species.