Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran
Rapid urbanisation, economic growth, and urban spatial development in developing countries, such as Iran, have resulted in tremendous loss of green cover and associated ecological problems. Any effort to achieve sustainable urban development should be supported by recognising and evaluating the ecol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/12/2010 |
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| author | Alizadeh Shahin Zenouzi Komali Yenneti Raziyeh Teimouri Fatemeh Abbasiyan Massimo Palme |
| author_facet | Alizadeh Shahin Zenouzi Komali Yenneti Raziyeh Teimouri Fatemeh Abbasiyan Massimo Palme |
| author_sort | Alizadeh Shahin Zenouzi |
| collection | DOAJ |
| description | Rapid urbanisation, economic growth, and urban spatial development in developing countries, such as Iran, have resulted in tremendous loss of green cover and associated ecological problems. Any effort to achieve sustainable urban development should be supported by recognising and evaluating the ecological health of vegetation cover. This study investigates vegetation cover reduction and changes in the Tehran Metropolis, Iran and identifies the most important factors influencing the observed changes. The aim of this study is two-fold: first, to assess the spatio-temporal changes in vegetation cover in Tehran between 1990 and 2020, and second, to identify the factors contributing to the changes. The Normalised Difference Vegetation Index (NDVI) is used as an indicator of green cover. The spatial and statistical data used in this study were extracted from Landsat satellite imagery and the last approved Master Plan of Tehran (2006). Geographically Weighted Regression (GWR) and geographical modelling methods were employed to analyse vegetation cover in all municipal districts of the Tehran metropolis. The results show that the vegetation density in the Tehran metropolis decreased significantly (from 38,936.80 hectares to 4663.23 hectares) between 1990 and 2020. The expansion of construction lands and the increase of population density were the most significant factors affecting the reduction in vegetation cover in Tehran. In contrast, the growth of industrial units in the urban areas of Tehran had no significant relationship with vegetation cover. The results of this study can help urban planners understand the significant drivers of vegetation loss and identify appropriate interventions to prevent it. |
| first_indexed | 2024-03-09T17:21:41Z |
| format | Article |
| id | doaj.art-fec755ab8f1843d1bd87c689bdd91f20 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-09T17:21:41Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-fec755ab8f1843d1bd87c689bdd91f202023-11-24T13:11:18ZengMDPI AGAtmosphere2073-44332022-11-011312201010.3390/atmos13122010Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, IranAlizadeh Shahin Zenouzi0Komali Yenneti1Raziyeh Teimouri2Fatemeh Abbasiyan3Massimo Palme4Faculty of Planning and Environmental Science, University of Tabriz, Tabriz 5166-616471, IranSchool of Architecture & Built Environment, University of Wolverhampton, Wolverhampton WV10 0JP, UKUniSA Creative, University of South Australia, Adelaide 5005, AustraliaFaculty of Geography, Kharazmi University, Tehran 5719-14911, IranDepartamento de Arquitectura, Universidad Técnica Federico Santa María, Valparaíso 2340000, ChileRapid urbanisation, economic growth, and urban spatial development in developing countries, such as Iran, have resulted in tremendous loss of green cover and associated ecological problems. Any effort to achieve sustainable urban development should be supported by recognising and evaluating the ecological health of vegetation cover. This study investigates vegetation cover reduction and changes in the Tehran Metropolis, Iran and identifies the most important factors influencing the observed changes. The aim of this study is two-fold: first, to assess the spatio-temporal changes in vegetation cover in Tehran between 1990 and 2020, and second, to identify the factors contributing to the changes. The Normalised Difference Vegetation Index (NDVI) is used as an indicator of green cover. The spatial and statistical data used in this study were extracted from Landsat satellite imagery and the last approved Master Plan of Tehran (2006). Geographically Weighted Regression (GWR) and geographical modelling methods were employed to analyse vegetation cover in all municipal districts of the Tehran metropolis. The results show that the vegetation density in the Tehran metropolis decreased significantly (from 38,936.80 hectares to 4663.23 hectares) between 1990 and 2020. The expansion of construction lands and the increase of population density were the most significant factors affecting the reduction in vegetation cover in Tehran. In contrast, the growth of industrial units in the urban areas of Tehran had no significant relationship with vegetation cover. The results of this study can help urban planners understand the significant drivers of vegetation loss and identify appropriate interventions to prevent it.https://www.mdpi.com/2073-4433/13/12/2010vegetation indexNDVIurban developmentgreen coverTehran metropolisIran |
| spellingShingle | Alizadeh Shahin Zenouzi Komali Yenneti Raziyeh Teimouri Fatemeh Abbasiyan Massimo Palme Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran Atmosphere vegetation index NDVI urban development green cover Tehran metropolis Iran |
| title | Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran |
| title_full | Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran |
| title_fullStr | Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran |
| title_full_unstemmed | Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran |
| title_short | Analysis of Changes in Vegetation Index during the Rapid Urban Spatial Development Period (1990–2020) in Tehran Metropolis, Iran |
| title_sort | analysis of changes in vegetation index during the rapid urban spatial development period 1990 2020 in tehran metropolis iran |
| topic | vegetation index NDVI urban development green cover Tehran metropolis Iran |
| url | https://www.mdpi.com/2073-4433/13/12/2010 |
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