Investigating of Groundwater Head-Loss Impact on Soil Erosion Process and Formation of Dust Phenomenon

Document Type : Research Article

Authors

1 Assistance Professor, Faculty of Engineering, University of Sistan and Baluchestan, zahedan, Iran

2 university of Sistan and Baluchestan

3 Ph. D. Candidate, Shahid Nikbakht Faculty of Engineering, Civil Engineering Department, Sistan and Baluchestan, Zahedan

Abstract

The purpose of this research is to analyze the decrease of surface moisture and source of dusts in Hamoon-Hirmand Basin of Sistan and Baluchestan province. In order to achieve the objectives of this paper, WEAP software was used to simulate subsurface flow drops and then, by applying water resource management scenarios, the subsurface flow loss rate was simulated by 2031. Using the hierarchical analysis method, the best option among the scenarios was selected and the area under study under this scenario at the end of the year is 29 cm below the subsurface flow rate and the total unsecured amount for various criteria such as drinking, agriculture And the environment is equal to 804.183 million cubic meters. The wind speed in the study area is greater than the velocity threshold of the particles (more than 400 cm / s), so the area is capable of producing dust. The HYDRYS-1D model has been used to analyze the soil moisture content reduction in this paper. The obtained results indicate a decrease in soil moisture content in each year. It was concluded that the reduction of soil moisture content is closely related to the subsurface flow rate and the potential for dust

Keywords

Main Subjects


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