Vulnerability Assessment of Shallow Groundwater in Ordos Cretaceous Basin

• 作者: GUO Jin-miao WANG Huang YANG Guo-qiang
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 地下水脆弱性评价 鄂尔多斯盆地 浅层地下水 盆地系统 白垩系 污染脆弱性 地下水污染 DRASTIC
• 年，卷（期）: 2012,（1）
• 页码范围: 1-4
• 页数: 4页
• 分类号: P641.8

摘要

[Objective] The aim was to evaluate the vulnerability to pollution of shallow groundwater in Ordos Cretaceous Basin system.[Method] Mathematical modeling,GIS spatial analysis and multivariate statistical analysis technologies were introduced to improve the traditional groundwater vulnerability assessment model of DRASTIC in view of its strong subjective for expert estimation and weight assigning.In the meantime,the intensity and reasons of vulnerability to pollution of groundwater in the area were studied,and measures to protect local groundwater were proposed.[Result] Using improved DRASTIC method to assess the vulnerability to pollution of groundwater in Ordos Cretaceous Basin system was objective and reliable.The application of fertilizer was the main influential factors to the vulnerability to pollution of groundwater in Ordos Cretaceous Basin system.It was advised to lessen the usage of fertilizer and not to drink water from lake or deep ground water.Density,rock,and evaporation were factors that led to intensive vulnerability to pollution of groundwater in shallow areas.[Conclusion] The study provided a new method for the evaluation of vulnerability to pollution of groundwater in Ordos Basin.