Physical specifications of the wetland
The understudy region, with a geographical situation of 37º 13' 25" north latitude and 45º 51' 38" east longitude, is located on the south coast of Lake Urmia in the suburb of Bonab town. This region has an area of 56642 hectares and an altitude of 1270m.
Climate: The considered scope is a region with long winters and moderate and relatively hot summers. Concerning the conducted studies, the region enjoys a cold semi-arid climate according to De Martonne classification.
The maximum precipitation belongs to the winter and spring seasons, and there is either no or insignificant rainfall in summer.
Based on 11-year surveys in the region and Maragheh station, the average annual rainfall is 303 mm, the average maximum temperature is 3.34 ºC, and the average minimum temperature in the coldest month of the year is 6-8º. Four months of the year are dry, and 3 months of the year are freezing. The average 10-year rainfall rate has been reported at 147mm in spring, 4mm in summer, 59mm in autumn, and 74mm in winter.