The purpose of this research is the zoning of groundwater quality for agriculture usages in
the Eyvanakey plain, conjugating Interpolation methods by Geographic Information System
(GIS) and selection of the best weights in Analytical Hierarchy Process (AHP). Achieving this
aim, groundwater quality data from 19 wells in Eyvanakey plain were used. First, raster
maps of the study area was prepared, using Inverse Distance Weighted (IDW) method,
containing the Sodium Absorption Ratio (SAR), Permeability Index (PI), Kelley Ratio (KR) …

Collecting the samples from all location of the study area due to high expenses is not
possible; therefore zoning methods are powerful tool in the estimation data based on spatial
variation. The purpose of this research is groundwater quality zoning for agriculture uses in
the Varamin plain using Interpolation methods with GIS software and selection of the best
weights in Analytical Hierarchy Process (AHP). For achieving this purpose, groundwater
quality data from 74 tube wells in the plain of Varamin from 2010 to 2011 were used. Firstly …