Land evaluation procedure given by FAO for soil site suitability for various land utilization types has
been used to assess the land suitability for major crops in Sohag Governorate, Egypt. The database on
soil, land use/land cover was generated from data derived from Landsat ETM+ remote sensing
satellite and soil survey to perform an integrated analysis in the geographic information system
environment. Agricultural and non-agricultural lands were delineated using the Decision Tree
Classifier (DTC) and non-agricultural areas were masked out for re moval from the analysis. Different
soil chemical parameters and physical parameters were evaluated for different crops. Subsequently,
all of them were integrated using the Analytic Hierarchy Process (AHP) model and GIS to generate
the land suitability maps for major crops. Results indicated that the Analytic Hierarchy Process
(AHP) model was found to be a useful method to determine the weights. It can deal with inconsistent
judgments and provides a measure of the inconsistency of the judgment of the respondents. The GIS
is found to be a technique that provides greater flexibility and accuracy for handling digital spatial
data. The combination of the AHP method with GIS in our experiment proves it is a powerful
combination to apply for land-use suitability analysis.