【摘要】 为研究珲春盆地地下水固有脆弱性,评价地下水的防污能力,在分析以往评价方法的基础上,提出了地下水位埋深(D)、包气带权重厚度(T)、含水层单井涌水量(I)和地下水流速(V)作为固有脆弱性评价指标,建立了指标评分标准,采用层次分析法确定了指标权重。采用该方法对珲春盆地地下水固有脆弱性进行了评价。结果表明,珲春盆地地下水主要为一般脆弱区,占研究区总面积88.3%;较低脆弱区面积较小,占总面积0.8%;较高脆弱区占总面积的10.9%,较高脆弱区分布于珲春盆地上游及珲春河漫滩区,建议该区应注意减少污染物排放,保护地下水水质。更多还原

【Abstract】 Hunchun city is an impotent transportation hub in Northeast Asia.Its economic development rate is rapid.In order to prevent groundwater contamination,the groundwater intrinsic vulnerability was studied in Hunchun basin,which is population and economic centers of Hunchun city.The groundwater level depth(D),weighted vadose zone thickness(T),Single-well aquifer water inflow(I),and groundwater velocity(V)was used as the assessment index.The index weight was assigned by Analytic Hierarchy Process and the intrinsic vulnerability of Hunchun basin was evaluated.The results indicated that most area of Hunchun basin had normal vulnerability,accounting 88%of the study area;the lower vulnerability area accounted only 0.8%;the higher vulnerability area accounted 10.9%,which distributed in basin upstream and floodplain of Hunchun River.So the advice was given that the contamination discharge should be prohibited in this area to protect the groundwater.更多还原