Urban ecology and related environmental concerns
N. Ezadbin; H. Mahmoudzadeh; R. Ghorbani
Abstract
BACKGROUNS AND OBJECTIVES: As an integral component of urban space, green space assumes a pivotal role in the purification and filtration of air, provision of recreational opportunities, and augmentation of the aesthetic allure of the urban landscape. In contemporary urban settings, the significance ...
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BACKGROUNS AND OBJECTIVES: As an integral component of urban space, green space assumes a pivotal role in the purification and filtration of air, provision of recreational opportunities, and augmentation of the aesthetic allure of the urban landscape. In contemporary urban settings, the significance of urban green spaces is widely acknowledged and embraced as an indispensable facet of the city. The consequences of urban expansion and the resulting environmental problems have indefinitely made the presence of green spaces and their proper distribution essential. Meanwhile, it is necessary to pay attention to achieving spatial balance in the distribution of urban parks, as they are an important component of urban green spaces, particularly in large cities. The population in Karaj city in Iran, has experienced an excessive increase, particularly in the last three decades. This has resulted in the rapid expansion of urban areas the destruction of the natural landscape and the structural pattern of both natural and artificial ecosystems. The city of Karaj, formerly known as Baghshahr, has transformed into a metropolis, with only a few traces of its once abundant urban green spaces remaining. This research aims to evaluate the demand for green space and the distribution capacity among the districts of 3 and 8 of Karaj city. The objective of the current study is to provide solutions based on spatial justice to increase the use of green space.METHODS: The current research utilizes a combination of descriptive-analytical and critical methods, as well as documentary and survey methods. To analyze and evaluate the condition of green spaces and their mapping, information, and data from relevant organizations and satellite images have been utilized within specific spatial-temporal scales and GIS software.Results: The results showed that the highest weight obtained was related to participation, with a weight of 0.118. This was followed by social capital, with a weight of 0.116 percent. The lowest weight was related to public services, with a weight of 0.040.CONCLUSION: District 3 has more green space than District 8 due to the presence of gardens and trees planted by the municipality on the outskirts of the district. Additionally, the political ecology in these neighborhoods has not been impacted by District 3. However, Jahanshahr and Molana neighborhoods in District 8 have a high per capita population due to their small population and large areas of parks. Additionally, the presence of Family, fruit, Fateh and small Iran Gardens, contribute to the high population density in these neighborhoods. However other areas in the district experience a significant shortage of urban green spaces and are affected by the influence of political ecology at both the neighborhood and regional levels.
Urban ecology and related environmental concerns
A.R. Sadeghi; M. Khakzand; M.A. Dehghani
Abstract
In the present era, the importance and role of green space in the life and development of cities are to the extent that it is mentioned as one of the indicators of sustainable development. In sustainable urban development, proportional distribution of green space according to the balanced distribution ...
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In the present era, the importance and role of green space in the life and development of cities are to the extent that it is mentioned as one of the indicators of sustainable development. In sustainable urban development, proportional distribution of green space according to the balanced distribution of the population is one of the principles of establishing geographical justice. The purpose of the present study is also to determine the status of green space per capita in ten districts of Shiraz city. The research type is applied-developmental and the research method is descriptive-analytical. The data has been collected from urban plans, and to investigate the spatial distribution of the share of green space in 10 districts of Shiraz city, Dispersion coefficient model was utilized. Shannon entropy also has been implemented for analyzing Population distribution during 2007, 2012 and 2016 in urban districts of Shiraz. The research results show that the highest per capita of urban green space is related to districts 9, 3, 6, 1, respectively, and the lowest per capita of green space is related to districts 8 and 7, respectively. The coefficient of dispersion was obtained as equal to 0.20, which, unlike the previous studies, indicates the realization of the principle of justice in spatial planning of green space index in 2016. The results of the entropy coefficient showed that distribution of the population in ten districts of Shiraz in 2007 has been balanced, in 2012 has moved toward unequal distribution of population, and then in 2016 again has moved toward balanced distribution.