Journal of Food, Agriculture and Environment

Investigation of soil quality for different irrigation systems in Lali Plain, Iran

Author(s):

AbdAli Naseri ¹, Ali Reza Rezania ², Mohammad Albaji ^1*

Recieved Date: 2009-05-28, Accepted Date: 2009-10-09

Abstract:

The main objective of this research was to compare different irrigation methods based upon a parametric evaluation system in an area of 3575 ha in the Lali region located in Khuzestan Province, Southwest Iran. Soil properties of the study area including texture, depth, electrical conductivity, drainage, calcium carbonate content and slope were derived from a semi-detailed soil study regarding Lali Plain in a scale of 1:20000. After analyzing and evaluating soil properties, suitability maps were generated for surface, sprinkler and drip irrigation methods by means of Remote Sensing (RS) Technique and Geographic Information System (GIS). The results showed that 1732 ha (48.5%) of the studied area was highly suitable for all of the irrigations methods, whereas 384 ha (10.8%) of the study area was unsuitable for surface irrigation methods. Also, for sprinkler and drip irrigation systems the unsuitable lands did not exist in this zone. The results demonstrated that by applying sprinkler and drip irrigation methods instead of surface irrigation methods, land suitability classes of 384 ha (10.8%) for Lali Plain will improve. The comparison of the different types of irrigation techniques revealed that the sprinkler and drip irrigations were more effective and efficient as the surface irrigation methods improved the suitability to the irrigation purposes. Additionally, the main limiting factors in using surface and sprinkler irrigation methods in this area were soil texture, soil depth and slope. Also, the main limiting factors in using drip irrigation methods in the area were soil calcium carbonate content and soil texture.

Keywords:

Surface irrigation, sprinkler irrigation, drip irrigation, land suitability, evaluation, parametric method, land units

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Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 3&4
Category: Environment
Pages: 955-960

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