VULNERABILITY ASSESSMENT OF KORDKANDI- DUZDUZAN PLAIN GROUNDWATER USING CALIBRATED DRASTIC MODEL

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SOLTANI SH.; ASGHARI MOGHADAM A.; BARZEGAR R.; Kazemian N.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2018 | Volume:13 | Issue:4 Page(s): 89-99

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Title

VULNERABILITY ASSESSMENT OF KORDKANDI- DUZDUZAN PLAIN GROUNDWATER USING CALIBRATED DRASTIC MODEL

Author(s)

SOLTANI SH. | ASGHARI MOGHADAM A. | BARZEGAR R. | Kazemian N. | Issue Writer Certificate

Keywords

CALIBRATIONQ1

DRASTICQ2

GROUNDWATER VULNERABILITYQ1

KORDKANDI- DUZDUZAN PLAINQ2

Abstract

The main land use in Kordkandi-Duzduzan plain is agricultural activities and therefore the possibility of aquifer contamination by irrigation return flows contaminated by chemical fertilizers is very high. Thus, vulnerability assessment of the aquifer seems to be essential for the land use management and preventing groundwater contaminations in the area. The main aim of this study is mapping the region's vulnerability by DRASTIC method and then CALIBRATION of DRASTIC model with nitrate data to improve this method. Factors affecting the GROUNDWATER VULNERABILITY such as depth of groundwater, net recharge, aquifer media, soil media, topography, impact of vadose zone, and hydraulic conductivity were prepared as raster format in GIS media. Two nitrate data sets were used for validation and CALIBRATION of DRASTIC model. The results showed that the determination coefficient between nitrate concentration and the corresponding vulnerability increased from 0.6783 to 0.7903 when modifying layer weights. Based on calibrated DRASTIC vulnerability map, vulnerability index for the study area was calculated between 66.56 and 148.89. The determination coefficient between nitrate concentration values and calibrated DRASTIC vulnerability map were increased compared to the original DRASTIC map which confirms the validity of the CALIBRATION process.

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APA: Copy

SOLTANI, SH., ASGHARI MOGHADAM, A., BARZEGAR, R., & Kazemian, N.. (2018). VULNERABILITY ASSESSMENT OF KORDKANDI- DUZDUZAN PLAIN GROUNDWATER USING CALIBRATED DRASTIC MODEL. IRAN-WATER RESOURCES RESEARCH, 13(4 ), 89-99. SID. https://sid.ir/paper/100330/en

Vancouver: Copy

SOLTANI SH., ASGHARI MOGHADAM A., BARZEGAR R., Kazemian N.. VULNERABILITY ASSESSMENT OF KORDKANDI- DUZDUZAN PLAIN GROUNDWATER USING CALIBRATED DRASTIC MODEL. IRAN-WATER RESOURCES RESEARCH[Internet]. 2018;13(4 ):89-99. Available from: https://sid.ir/paper/100330/en

IEEE: Copy

SH. SOLTANI, A. ASGHARI MOGHADAM, R. BARZEGAR, and N. Kazemian, “VULNERABILITY ASSESSMENT OF KORDKANDI- DUZDUZAN PLAIN GROUNDWATER USING CALIBRATED DRASTIC MODEL,” IRAN-WATER RESOURCES RESEARCH, vol. 13, no. 4 , pp. 89–99, 2018, [Online]. Available: https://sid.ir/paper/100330/en

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