The main objective of the present study is a qualitative assessment of land suitability of the soil for planting wheat in Saleh Abad region. The study area is located in the mehran county in the south of ilam provinve. In this study has been used of 3 steps Collecting and processing needs of climate and land characteristics, Wheat needs assessment and Determine the qualitative land suitability class for Qualitative assessment of land suitability. The result of current paper showed that: Class assessment of regional climate was proper for irrigated cultivation wheat, The main limitation of the region have included the plaster, lime scale, PH, depth and texture, percent sand, slope and topography, In terms of profitability, wheat production is highest in the region. Land physical evaluation results show that there are two types of soil in the study area a high percentage of gypsum plaster and the other with a relatively low percentage. Qualitative assessment of the suitability of land into three simple constraint method, intensity and number of parametric limits has been quite near another
