Analysis of dust formation process based on desertification factors in the southeast of Ahvaz in Khuzestan province

Subject Areas : Water and Environment

mozhdeh keramatzadeh ¹ (shahid chamran university of ahvaz)
hadi moazed ² (Professor, Faculty of Water Sciences, Shahid Chamran University Ahvaz)
ahmad fathi ³ (Faculty of Water Sciences, Shahid Chamran University of Ahvaz)

Received: 2021-05-13 Accepted : 2021-07-08 Published : 2021-02-19

Keywords: Desertification, Vegetation, climate, IMDPA, Dust fine,

Abstract :

The dust crisis in Khuzestan province is an environmental crisis that is currently one of the main centers of dust production in the desert areas of southern Ahvaz and the destroyed parts of Shadegan wetland. Destruction of vegetation in arid areas is the cause of desertification, which is the biggest cause of dust production. In this study to evaluate the criteria and indicators effective in desertification of the region, with the help of the model (IMDPA) which includes 9 criteria that Two criteria, climate and vegetation, each of which contains 3 specific indicators, have been selected. The numerical value of each criterion is obtained from the geometric multiplication of its indicators and finally the total desertification of the region is obtained from the geometric multiplication of two criteria. Finally, the intensity of desertification in the region was calculated to be 1.99 based on the selected criteria, which was in the medium desertification class according to the model scoring table.