Zoning of Basic Design Parameters of Pressurized Irrigation Systems Based on the Results of Soil and Water Tests Using Geostatistics (Case Study: Plains of Islamabad-Gharb)

Document Type : Research Paper


1 Former MSc Student, Water Engineering Department, Faculty of Agriculture, Razi University, Kermanshah, Iran.

2 Assistant Professor, Water Engineering Department, Faculty of Agriculture, Razi University, Kermanshah, Iran.

3 Research Assistant Professor, Soil and Water Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah, Iran.


Maximum sprinkler flow rate, maximum irrigation interval, and leaching requirement are the primary factors in designing sprinkler irrigation systems, which are determined based on the physical and chemical properties of water and soil. This study aimed to prepare the spatial maps of the mentioned parameters in the plains of Islamabad-Gharb district, Kermanshah province. In previous studies, kriging and IDW methods have been found to be suitable for zoning the physical and chemical properties of groundwater and soil. Asadzadeh et al. (2019) investigated the spatial changes of groundwater quality indicators in Ardabil plain by kriging method to investigate the water situation in this area for irrigation systems. Yonesi et al. (2020) also zoned some critical water quality parameters (such as nitrate) of the Najafabad aquifer using the kriging method. Kumar and Sangeetha (2020) used the IDW method to classify groundwater quality in the study area and classify it according to drinking and agricultural uses. Karami and Basirat (2015) evaluated the spatial variations of some surface soil characteristics of Arsanjan plain by kriging and IDW methods. on the other hand, a specific method can not be considered the best method for intermediation and zoning of these parameters. In this study, both methods were used for mediation.


Main Subjects

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Volume 45, Issue 4
February 2023
Pages 131-144
  • Receive Date: 28 October 2021
  • Revise Date: 16 August 2022
  • Accept Date: 20 August 2022
  • Publish Date: 20 February 2023