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Title

MONITORING OF THE SOIL SALINITY IN KASHAN PLAIN

Pages

 Start Page 75 | End Page 86

Abstract

 Kashan plain located in central of Iran and its climate is arid. Population growth and increasing demand new sources, it is endangering the fragile ecosystems. Reduced agricultural production, abandoned agricultural land and DESERTIFICATION phenomena which appear in Kashan plain is clearly visible, the evidence for this claim. In this study, the factors affecting the spread of undesirable process in which water and soil have been studied. Changes in soil salinity and Alkalinity in the Kashan plain area by drilling 8 profiles over 5 years. The results showed that increasing salinity changes at three sites, two fixed sites and 3 sites is decreasing. Therefore, increasing the salinity and SOIL DEGRADATION in the 5/37% of the area of Kashan plain is about to happen. The maximum EC of soil and water respectively was observed 30.1 and 17.73 dS/m site in Saleh Abad and least equal to 2.7 and 2.98 dS/m at the Mohammadia site. In order to maintain the status quo, changing the irrigation, cultivation of plants with low water needs, the use of alternating high and low WATER QUALITY, flood spreading systems for the use of water in the upstream and prevent the drilling deep and uncontrolled exploitation of groundwater is proposed to Kashan plain.

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