study spatial variability of salinity in the area of social studies QomHoz soltan

Document Type : Research Article


1 Soil group of the Faculty of Agriculture, Islamic Azad University, Roodehen Branch, Iran

2 Department of Range and Watershed Management, University of Hormozgan Bandar Abbas, Iran

3 Assistant Professor, Department of Natural Resources, Faculty of Agriculture and Natural Resources, University of Hormozgan Bandar Abbas, Iran

4 Faculty of Natural Resources Campus of Agriculture and Natural Resources / Faculty of Natural Resources Revitalization of arid and mountainous areas of Tehran University Tehran Iran


Soil salinity is one of the factors limiting plant growth and land degradation. The purpose of this study is to apply and access to soil salinity database which are inaccessible in arid and semi-arid regions using laboratory methods and GIS techniques. In this research, an attempt has been made to identify the soil salinity trend and its minerals by digging 8 profiles with an average depth of 1.5 meters and sampling water from 4 points on a transect from the Kenic line to the Playa in Hoz-e Sultan Qom. Soil water samples were taken from each soil profile at the end of the growing season in late Shahrivar and analyzed in the laboratory. The results showed that the trend of salinity changes from Kenic line to Playa is such that chlorides, sulfates, carbonates and finally calcium carbonates are observed, respectively. This trend was significant in Hoz-e-Soltan region. In this study, soil PH range from 6.5 to 8.9, salinity starts from 1.5 ds / m / m2 near the Conic line and increases to 2.30 ds / m2 next to the salt pan. Also, in the study area, sodium (soda) soils, the percentage of exchangeable sodium is more than 15 and the ratio of sodium absorption in the saturated extract is more than 13


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Volume 8, Issue 2
July 2021
Pages 551-562
  • Receive Date: 24 September 2020
  • Revise Date: 12 May 2021
  • Accept Date: 12 May 2021
  • First Publish Date: 22 June 2021