2-1- study area
The study area is Isfahan metropolitan, located in the center of Iran lying between 31° 29’ to 33° 1’ North latitude and 51° 31’ to 53° 12’ East longitude (Fig. 1). Air temperature and relative humidity in the city are strongly influenced by the type of surface cover. Isfahan city is characterized by an arid climate according to De Martonne’s climatic classification scheme. It enjoyed a high diversity of vegetation surface; from the west reaches to the gardens and forest park of Nazhvan, from the south, reaches to the mountain park of Sofeh, from the north and east are bounded by the desert region. Isfahan city is famous for its abundance of parks and green spaces along the Zayandehrood River.