The results obtained from the application of AEZ model were used to draw the zoning
maps. These maps show spatial variation of the capable regions for crop cultivation in five
classes. Figure (5) presents the spatial variation of capability of lands for wheat cultivation in
Hamadan Province. According to this study the most suitable lands potentially available for
wheat production are located in the north-east region and a part of the central region, where
as, least suitable ones can be observed in the north-east and the south – east regions.
The utilities of ArcView software makes it possible to overlay and integrate the maps of
drought risk obtained from AEZ model. Thus, the maps of spatial variations of suitability of
crop production for each class of risk of occurrence (longest duration and most intensive) of
droughts were obtained. These are presented in Figures (6) and (7).Based on the results
obtained it is clear that the priority of cultivation of a crop in a class of drought will be in
regions having higher spatial suitability of crop production potential. In other words, in a
region located in a drought class the spatial suitability of crop production is variable.
Therefore, it is necessary to allocate higher priority to regions with higher crop production
potential in agricultural drought risk management.