Journal of Natural Environment

Arboreal green space pattern modelling operational zones of the city with the approach of landscape ecology

Document Type : Research Paper

Authors

1 Department of Forestry and Forest Economics, Faculty of Natural Resources, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.

2 Department of Environmental Science, Faculty of Natural Resources, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.

10.22059/jne.2024.377381.2681

Abstract

Urban forestry mainly refers to the city's green space and the city's forests. The clear and quantified arrangement pattern by land surface metrics for urban forests in each of the functional zones of the city is an important basic component for the analysis of patches of tree green space. In the present study, the main goal is to determine the model of urban tree green spots concerning the functional zones of the 5th district of Tehran. In this research, a map of tree green space was first prepared using Google Earth software images. Then, a small map of green space with trees was made using Arc GIS software. By using the Patch Analyst function and the parameters of the landscape of this function was obtained the model of the arrangements of tree patches in four classes of single-stand, linear, clustered, concentrated and continuous trees. Finally, it was analyzed using Fragstats software. The results of the research showed that the best measure for preparing the layout model is the area and spot shape measure. Also, the results showed that the largest area of the arrangement model of patches of green space is related to the concentrated and continuous arrangement model, clustered, linear and single-stand, respectively. By checking the measurement of the number of spots, the highest number of spots is related to the single-stand arrangement model and the lowest number of spots is related to the concentrated and continuous arrangement which shows the fineness and fragmentation of the single-stand green space inside the region five and the expansion of forestry and the integration of the arrangement is concentrated and continuous in the margin and north of region five. By examining the functional zones of the city, the largest area is related to the service zone and the smallest area is related to the industrial zone. After examining the distribution of single-stand and linear layout models in functional zones, it was concluded that the highest distribution of these two layout models is in the residential zone and the lowest distribution is in the industrial zone. Also, examining the models of clustered, concentrated and continuous arrangements, the most distribution of these two models is in the service zone.

Keywords

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Journal of Natural Environment
Volume 78, Issue 1
June 2025
Pages 15-30