Analysis of Desertification Use IMDPA Model with Emphasis on Climate and Vegetation Criteria (Case Study: Shadegan Town)

In this study, desertification status of Shadegan town was investigated using IMDPA model, in which statistical analysis and Iranian Model of Desertification Potential Assessment (IMDPA) model were analyzed. Among the 9 standard IMDPA models for the study, two criteria of vegetation and climate, according to the selected area and for every criterion, different indicators were considered In this model, numerical values of criteria were calculated by Geometrical average mean of indices. Finally, desertification of total studied region was estimated from the Geometrical average mean of criteria and final region desertification map was provided using ArcGIS software. The results showed that vegetation criteria with the numerical value 2.39 have the greater effect to criteria climate with the numerical value 1.7 on desertification in Shadegan region. Finally, based on the two investigated criteria, quantitative value of desertification intensity was estimated to be 2.02. Based on the scoring tables of studied model, the region desertification was determined to be moderate.