A GIS-based DRASTIC model for assessing intrinsic groundwater vulnerability in northeastern Missan governorate, southern Iraq

被引：61

作者：

Al-Abadi A.M. ^{[1
]}

Al-Shamma’a A.M. ^{[2
]}

Aljabbari M.H. ^{[2
]}

机构：

[1] Geology Department, Science College, Basra University, Basra

[2] Geology Department, Science College, Baghdad University, Baghdad

来源：

Applied Water Science | 2017年 / 7卷 / 1期

关键词：

ArcGIS; DRASTIC model; Missan governorate; South of Iraq; Vulnerability map;

D O I：

10.1007/s13201-014-0221-7

中图分类号：

学科分类号：

摘要：

In this study, intrinsic groundwater vulnerability for the shallow aquifer in northeastern Missan governorate, south of Iraq is evaluated using commonly used DRASTIC model in framework of GIS environment. Preparation of DRASTIC parameters is attained through gathering data from different sources including field survey, geological and meteorological data, a digital elevation model DEM of the study area, archival database, and published research. The different data used to build DRASTIC model are arranged in a geospatial database using spatial analyst extension of ArcGIS 10.2 software. The obtained results related to the vulnerability to general contaminants show that the study area is characterized by two vulnerability zones: low and moderate. Ninety-four percentage (94 %) of the study area has a low class of groundwater vulnerability to contamination, whereas a total of (6 %) of the study area has moderate vulnerability. The pesticides DRASTIC index map shows that the study area is also characterized by two zones of vulnerability: low and moderate. The DRASTIC map of this version clearly shows that small percentage (13 %) of the study area has low vulnerability to contamination, and most parts have moderate vulnerability (about 87 %). The final results indicate that the aquifer system in the interested area is relatively protected from contamination on the groundwater surface. To mitigate the contamination risks in the moderate vulnerability zones, a protective measure must be put before exploiting the aquifer and before comprehensive agricultural activities begin in the area. © 2014, The Author(s).

引用

页码：89 / 101

页数：12

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