VULNERABILITY ASSESSMENT OF ASADABAD (HAMADAN) PLAIN GROUNDWATER BY GIS

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OROJI BALAL; SOLGI EISA

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Journal: Environmental Sciences Year:2016 | Volume:14 | Issue:1 Page(s): 91-104

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Title

VULNERABILITY ASSESSMENT OF ASADABAD (HAMADAN) PLAIN GROUNDWATER BY GIS

Author(s)

OROJI BALAL | SOLGI EISA | Issue Writer Certificate

Keywords

ASADABAD PLAINQ1

AQUIFER VULNERABILITYQ1

DRASTIC MODELQ2

SINTACS MODELQ1

SI MODELQ1

Abstract

It is more expensive to remove pollution groundwater than to prevent it and, so, tools are sought that help managers prevent groundwater pollution. One such tool is AQUIFER VULNERABILITY mapping which is used to specify the most vulnerable parts of an aquifer. In order to prepare the AQUIFER VULNERABILITY map for ASADABAD PLAIN, which is the water resource for agricultural and industrial activities as well as rural consumption in the region, the DRASTIC, SINTACS and SI MODELs were used for exploration of ASADABAD PLAIN groundwater, using the following steps. First, in development the initial layers of the models were prepared and the available nitrate layer of the groundwater was also prepared on the basis of 24 measurements of wells taken during spring 2013. In order to evaluate the performance of the models, the correlation between the initial layers and available nitrates layer was calculated. Based on the calculated coefficient correlation and its significance, DRASTIC and SI MODELs were calibrated and than their parameters were modified. Using the overlap of the correlated AQUIFER VULNERABILITY maps, a contamination danger map for plain was produced which is called an agricultural DRASTIC map. At last, by comparing the vulnerability potential map, modified SI map, modified DRASTIC MODEL, agricultural DRASTIC MODEL and neuro- fuzzy inference map with the available nitrate layer, the best model was distinguished. The result illustrated that the agricultural DRASTIC method (r=0.79) is identified as the best method to evaluate the vulnerable points of ASADABAD PLAIN. According to this map, 26.24, 56.63 and 17.13% of the area are located in the least, medium and high vulnerable points, respectively.

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APA: Copy

OROJI, BALAL, & SOLGI, EISA. (2016). VULNERABILITY ASSESSMENT OF ASADABAD (HAMADAN) PLAIN GROUNDWATER BY GIS. ENVIRONMENTAL SCIENCES, 14(1 ), 91-104. SID. https://sid.ir/paper/117502/en

Vancouver: Copy

OROJI BALAL, SOLGI EISA. VULNERABILITY ASSESSMENT OF ASADABAD (HAMADAN) PLAIN GROUNDWATER BY GIS. ENVIRONMENTAL SCIENCES[Internet]. 2016;14(1 ):91-104. Available from: https://sid.ir/paper/117502/en

IEEE: Copy

BALAL OROJI, and EISA SOLGI, “VULNERABILITY ASSESSMENT OF ASADABAD (HAMADAN) PLAIN GROUNDWATER BY GIS,” ENVIRONMENTAL SCIENCES, vol. 14, no. 1 , pp. 91–104, 2016, [Online]. Available: https://sid.ir/paper/117502/en

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