Study of urban green space and its changes using remote sensing techniques (Case study: Tabas city)

Plant species used for urban green space in arid and semi-arid regions are not very diverse and many of them are drought sensitive and have high water requirements. This study was conducted to select new species as well as drought tolerant species for planting in green space and afforestation around cities in arid and semi-arid regions such as Tabas. To conduct this research, the required images of Sentinel ۲ satellite in the period of ۲۰۱۷, ۲۰۱۸ and ۲۰۱۹ were prepared. Then, by performing the necessary processes, the amount of vegetation was calculated. And finally, maps and diagrams related to each year in the study area in Tabas city, which includes the area under municipal irrigation, Munshi Bashi Children's Park, Women's Park, Golshan and Anonymous Martyrs Garden, Anonymous Martyrs Boulevard and Social Security Boulevard, an area of Imamzadeh Musa Ibn Jafar Kazem and Razavi town were prepared and presented. The final results indicate that in ۱۹۹۶ there was an increase in vegetation, in ۱۹۹۷ with a decrease in vegetation and in ۱۹۹۸ there was a slight increase in vegetation. Also, the amount of water in ۱۹۹۶, ۱۹۹۷ and ۱۹۹۸ was estimated to be ۱۱,۲۵۰ cubic meters, ۱۴۳۳ cubic meters and ۱۷,۲۰۰ cubic meters, respectively. The results of the present study give us a worrying result that one of the reasons for these results could be due to improper use of water and improper vegetation in the target areas. In the end, suggestions were made to improve the current situation.

Keywords:

green space , Sentinel ۲ , Vegetation , NDVI , Tabas