Document Type : Research Paper

Authors

• Behrouz Sobhani ¹
• Mohammad Framarzi ²

¹ Group Aqlym‌Shnasy, researcher University of Ardabil

² Remote Sensing and GIS, School of Humanities, University scholar ARDABILI

Abstract

Crop production ability and its potential are significantly up to
climate, topography and land use which are the most important
environmental factors. In this study, using climatic data such as
temperature, precipitation, number of frost days, sunny hours and
relative humidity related to phonology steps of saffron growing, Also
ground resource data such as topography, land use layers which are
prepared by Landsat 8 satellite imagery dated 14/5/2013. Evaluating
each of these parameters have been taken in relation to the climate and
ecology needs of saffron. Information layers of them were prepared by
adjusting data to the surface, and processing them by GIS technology.
Multi-criteria decision analysis methods (MCDM), based on vikor
were used in order to prioritize and evaluate information layers and
their weights in connection with each other. Then layers were
weighted based on the criteria and subject model also these layers
were overlapped and analyzed in GIS environment. Consequentially,
the final layer of land suitability was prepared for saffron cultivation.
In this study, 10.23, 45.25 and 45.52 percent of the total area are good,
average and weak suitability lands respectively. According to this
research, vikor method can have
an acceptable function over selecting
the fitness values for each class.

Keywords

• suitability
• Saffron
• GIS
• Vikor
• malayer city

Main Subjects

• Climatology