A Comparative Study on Phenotypic Plasticity of Seven Urban Street Tree Species in Two Contrasting Environments
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School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
Anhui Province Dadi Garden Corporation, Hefei 230088, China
College of Resources and Environment, Fujian Agricultural and Forestry University, Fuzhou 350002, China
Submission date: 2020-02-19
Final revision date: 2020-05-17
Acceptance date: 2020-05-19
Online publication date: 2020-09-07
Publication date: 2020-11-10
Corresponding author
Yongsheng Chen   

Anhui Agricultural University, China
Pol. J. Environ. Stud. 2021;30(1):739–750
The stresses imposed by impermeable paved grounds are known to result in poor health and drastically depressed benefits of street trees, but not all trees respond similarly. In this study, we investigated anatomical and chemical traits to evaluate the phenotypic plasticity of seven common street species. Analyses were performed on wood cores and leaves collected from street sites and a forest park site in Hefei, eastern China. We found significant increases in the vessel size of Sapium sebiferum (Ss) for the street trees, and the vessel frequency of Albizia julibrissin (Aj) and Koelreuteria bipinnata Franch. var. integrifoliola (Kb), indicating higher water transport efficiency and drought resistance under impervious pavements, respectively. The specific leaf area tended to be higher in Kb, Sapindus mukorossi (Sm) and Ss in the street site, while it was lower in Cinnamomum camphora (Cc) and Platanus acerifolia (Pa) for the street trees. Stomatal traits showed little change between the street site and the park site. Cc exhibited lower chlorophyll and carotenoid concentration in street trees. Ss and Cc showed high plasticity in terms of anatomical and chemical properties, respectively, while Acer buergerianum was unresponsive. These results provide a physiological basis for future street species selection in eastern China.