|
Evaluation of the aesthetic and ecological traits of ornamental trees and shrubs in urban green spaces (case study: region four of Rasht city)
|
Taher Deljooye Tohidi   , Mohammad Reza Khaledian * , Moazzam Hassanpour Asil , Abdullah Hatamzadeh , Mahmood Ghasemnezhad |
| University of Guilan, |
|
|
Abstract: (41 Views) |
For the development of sustainable green spaces, the evaluation of plants used in urban green spaces is of great importance. These spaces are created and maintained under human supervision and management to improve living conditions and welfare in cities. Aesthetic and ecological characteristics are among the main criteria for selecting ornamental trees and shrubs for urban parks. Numerous studies have been conducted on plant selection in green spaces, but research specifically evaluating the aesthetic characteristics of ornamental trees and shrubs is less common. This study identifies and prioritizes ornamental trees and shrubs in the urban green spaces of District 4 of Rasht, Iran, based on expert opinions. To analyze the results and data, three methods were used: AHP (weighting and ranking of indicators), TOPSIS (ranking trees and shrubs based on indicators), and the VIKOR method (multi-criteria ranking based on the "proximity" to the "ideal" solution(. The results showed that among the 7 identified indicators for trees and 8 tree and shrub, among tree indices the "landscape beauty" indicator with a coefficient of 0.145 and "leaf beauty" with a coefficient of 0.125 ranked first and third, respectively, while the ecological indicator "heat resistance" with a coefficient of 0.138 secured second place. Indicators such as "branching pattern" and "tree height" with a coefficients of 0.05 and 0.055 ranked lowest. Among shrubs indices the, "landscape beauty" with a coefficient 0.138 and "flower color" with a coefficient 0.094 ranked first and third, while "heat resistance" with a coefficient 0.121 ranked second. Indicators like "leaf beauty" and "cold tolerance" with a coefficients 0.054 and 0.06 ranked lowest. Among trees, the Zelkova carpinifolia tree with a coefficient 0.869 ranked first, followed by Parrotia persica and Ginkgo biloba trees with a coefficients 0.802 and 0.745 ranked second and third and Pterocarya fraxinifolia and Populus caspica Bornm trees with a coefficients 0.228 and 0.240 ranked lowest according to experts. For shrubs, Cercis siliquastrum with a coefficient 0.996 ranked first, while Lagerstroemia indica and Callistemon citrinus shrubs with a coefficients 0.829 and 0.821 secured second and third places and Deutzia gracilis’ Forsthya intermedia shrubs with a coefficients 0.286 and 0.358 ranked lowest. The VIKOR analysis yielded similar results, suggesting that plant selection in similar climates can prioritize methods like TOPSIS, AHP, and VIKOR. |
|
| Keywords: Aesthetic, Zelkova carpinifolia trees, Parrotia persica, Cercis siliquastrum and Lagerstroemia indica shrubs, AHP, TOPSIS, VIKOR methods |
|
|
|
Type of Study: Research |
Subject:
Special
Received: 2025/06/9 | Accepted: 2025/09/18 | Published: 2026/02/2
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
