Abstract
In the recent study, ecological zoning of wheat has been determined using Geographic Information System (GIS) and Analytical Hierarchy Process (AHP) methods in Golestan province located in north of Iran. At first, agro ecological requirements of crop was identified from scientific resources then classified and required thematic maps were provided. In this study environmental components were including: average, minimum and maximum temperatures, precipitation, slope, slope aspects, elevation and soil characteristics such as organic matter, pH, EC, texture, nitrogen, phosphorus, potassium, calcium, iron and zinc. The AHP was used to determine the weight of criteria. The digital environmental layers overlaid and integrated in GIS media then zoning of lands was done in 4 classes, including highly suitable, moderately suitable, less suitable and not-suitable. The results showed that south and southwestern areas were highly suitable and moderately suitable for wheat cultivation. These zones had enough rainfall (>400 mm) and high fertility. The less suitable and non-suitable regions are located in the north and northeast parts of Golestan province. In these areas the limitation factors were including: high EC, low precipitation and deficient of nutrition elements.
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