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地下水饮用水源地的保护重在防治,地下水脆弱性评估意义重大。基于DRAS-TIC模型,运用层次分析法,结合GIS技术对北京市顺怀密研究区潜层地下水进行本质脆弱性评价与分区。结果表明,北京顺怀密研究区地下水脆弱性普遍较高,脆弱性相对较低和低区仅占研究区总面积的10.38%。此外,通过指标敏感度分析探讨了影响研究区本质脆弱性的主要因素,为特殊脆弱性评价体系的建立提供科学方向。
The protection of groundwater source of drinking water focuses on prevention and treatment, and groundwater vulnerability assessment is of great significance. Based on the DRAS-TIC model, AHP and GIS were used to evaluate and partition the inherent vulnerability of the groundwater in the Shunhuai-dense study area in Beijing. The results show that the groundwater vulnerability of Beijing Shunhuai dense research area is generally high, the vulnerability is relatively low and the low area only accounts for 10.38% of the total area of the study area. In addition, the main factors that affect the essential vulnerability of the study area are explored through index sensitivity analysis, which provides a scientific direction for the establishment of a special vulnerability assessment system.