CAJ | 학술논문

针对DRASTIC模型存在的不足，综合考虑研究区水文地质特征和人类活动的影响，提出改进的地下水脆弱性指标体系，分别采用层次分析法（ AHP）、熵权法及AHP-熵权法对各指标赋权，建立改进的DRASTIC地下水模型。应用基于上述3种方法改进的模型对南京市江宁区中部地区地下水脆弱性进行评价，3种模型得到的脆弱性指数整体均呈现由中部向东北、西南方向逐渐降低的趋势，但不同模型中同一脆弱性区的面积有所差异；通过线性相关分析验证模型评价结果。结果表明，基于AHP-熵权法改进的DRASTIC模型评价结果较其他两种模型更客观真实地反映了研究区的实际情况。
침대DRASTIC모형존재적불족，종합고필연구구수문지질특정화인류활동적영향，제출개진적지하수취약성지표체계，분별채용층차분석법（ AHP）、적권법급AHP-적권법대각지표부권，건립개진적DRASTIC지하수모형。응용기우상술3충방법개진적모형대남경시강저구중부지구지하수취약성진행평개，3충모형득도적취약성지수정체균정현유중부향동북、서남방향축점강저적추세，단불동모형중동일취약성구적면적유소차이；통과선성상관분석험증모형평개결과。결과표명，기우AHP-적권법개진적DRASTIC모형평개결과교기타량충모형경객관진실지반영료연구구적실제정황。
A modified groundwater vulnerability assessment index system is proposed , with consideration of the deficiencies of the DRASTIC model , and the hydrogeological features and human activities in the study area .In order to establish this modified DRASTIC model , the indices of the system were weighted with the analytic hierarchy process ( AHP) method, the entropy weight method , and the AHP-entropy weight method .Modified models based on the three methods described above were applied to assessment of the groundwater vulnerability in the central area of the Jiangning District , in Nanjing City .The vulnerability indices obtained from the three models exhibited a deceasing trend from the central area towards the northeastern and southwestern areas , and the area with the same level of vulnerability varied in different models .The model results were verified with linear correlation analysis .The results show that the modified DRASTIC model based on the AHP-entropy weight method can better describe the actual status of the study area than the other two models .