Evaluation of Agricultural Land Resources for Irrigation in the Ramhormoz Plain by using GIS

The main objective of this research is to compare different irrigation methods based upon a parametric evaluation system in an area of 45,000 ha in the Ramhormoz plain located in the Khuzestan Province, in the southwest of Iran. The soil properties of the study area such as texture, depth, electrical conductivity, drainage, calcium carbonate content and slope were derived from a semi-detailed soil study carried out on the Ramhormoz plain on a scale of 1:20,000. Once the soil properties were analyzed and evaluated, suitability maps were generated for surface, sprinkler and drip irrigation methods using Remote Sensing (RS) Techniques and Geographic Information System (GIS). The results demonstrated that by applying sprinkler irrigation instead of surface and drip irrigation methods, the arability of 39,625 ha (87.98%) in the Ramhormoz Plain will improve. In addition by applying drip Irrigation instead of surface and sprinkler irrigation methods, the land suitability of 2925 ha (6.57%) of this Plain will improve. The comparison of the different types of irrigation techniques revealed that the sprinkler and drip irrigations methods were more effective and efficient than the surface irrigation methods for improving land productivity. However, the main limiting factor in using surface irrigation methods in this area were salinity, drainage and carbonate content and the main limiting factor in using sprinkler and drip irrigation methods in this area were salinity and carbonate content

Evaluation of Agricultural Land Resources for Irrigation in the Ramhormoz Plain by using GIS

The main objective of this research is to compare different irrigation methods based upon a parametric evaluation system in an area of 45,000 ha in the Ramhormoz plain located in the Khuzestan Province, in the southwest of Iran. The soil properties of the study area such as texture, depth, electrical conductivity, drainage, calcium carbonate content and slope were derived from a semi-detailed soil study carried out on the Ramhormoz plain on a scale of 1:20,000. Once the soil properties were analyzed and evaluated, suitability maps were generated for surface, sprinkler and drip irrigation methods using Remote Sensing (RS) Techniques and Geographic Information System (GIS). The results demonstrated that by applying sprinkler irrigation instead of surface and drip irrigation methods, the arability of 39,625 ha (87.98%) in the Ramhormoz Plain will improve. In addition by applying drip Irrigation instead of surface and sprinkler irrigation methods, the land suitability of 2925 ha (6.57%) of this Plain will improve. The comparison of the different types of irrigation techniques revealed that the sprinkler and drip irrigations methods were more effective and efficient than the surface irrigation methods for improving land productivity. However, the main limiting factor in using surface irrigation methods in this area were salinity, drainage and carbonate content and the main limiting factor in using sprinkler and drip irrigation methods in this area were salinity and carbonate content

Investigation of surface, sprinkler and drip irrigation methods based on the parametric evaluation approach in Jaizan Plain

The main objective of this research is to compare different irrigation methods based upon a parametric evaluation system in an area of 15,000 ha in the Jaizan Plain, Iran. Once the soil properties were analyzed and evaluated, suitability maps were generated for surface, sprinkler and drip irrigation methods using Geographic Information System (GIS). The obtained results showed that for 5275 ha (35.17%) of the study area surface irrigation method was highly recommended; whereas for 7500 ha (50%) of the study area a sprinkler irrigation method would provide to be extremely efficient and suitable; moreover, it was found that 7325 ha (48.83%) of the study area was highly suitable for drip irrigation methods. The results demonstrated that by applying sprinkler irrigation instead of surface and drip irrigation methods, the arability of 13875 ha (92.5%) in the Jaizan Plain will improve. The comparison of the different types of irrigation techniques revealed that the sprinkler and drip irrigations methods were more effective and efficient than the surface irrigation methods for improving land productivity. It is of note however that the main limiting factor in using surface irrigation methods in this area was drainage and the main limiting factor in using sprinkler irrigation methods in this area were gravel soil texture, drainage and calcium carbonate and the main limiting factors in using drip irrigation methods were the drainage and calcium carbonate