HOSEINI, Yaser university of mohaghegh ardabili - Moghan College of Agriculture and Environmental Science, اردبيل, ايران , DELAVARI, Azad university of mohaghegh ardabili, اردبيل, ايران

Comparing the Suitability of Two Methods (Surface and Drip) of Irrigation Based on a Parametric Evaluation System

38756

The main purpose of this study was to compare two methods of surface and drip irrigations based on parametric evaluation system. This study was performed on a surface area of 3000 ha in Rimakan region in Behbahan city located in Khuzestan province of Iran. Properties of lands (slope, drainage, soil texture, and topography) and physical and chemical properties of soil (lime, salinity, alkalinity, calcium, and carbonate) were the basis for the parametric evaluation. Lands evaluation was performed after analysis using geographical information system (GIS). Results showed that 10% of the studied lands were appropriate for surface irrigation and 22.45% of the lands were appropriate for drip irrigation and the rest of the lands were inappropriate for both irrigation methods. Drip irrigation method in comparison with the surface irrigation can increase production capacity of lands, but it must be noticed that the main limiting parameters in determining irrigation method in one region are soil texture, salinity, alkalinity, drainage, calcium carbonate, topography, and ground slope. This study also showed that GIS is a beneficial tool for the evaluation of lands suitability for different irrigation methods.

152

Drip irrigation , Evaluation of lands , Geographical information system (GIS) , Surface irrigation , Parametric

Yuzuncu Yil University Journal Of Agricultural Sciences

160