Since the weights of all the used criteria were not the same,
and some of the criteria act as a key factor [18], therefore, for
ranking the importance of the decision-making criteria about
identification of landfill, the factors have been weighed [19].
Therefore, the Analytical Hierarchy Process (AHP), which is
the common method in decision-making analysis in the field of
environment modeling, is used. [10, 21]. Accordingly, by
interview with 10 environmental experts, the suitable value of
each criterion was determined using this method and then the
layers with different values have been placed on each other
and the value of landfill is determined.