CAJ | 학술논문

为探索兰州市“三滩”水源地水质恶化原因，基于兰州“三滩”水源地不同历史时期的水化学数据，结合对含水层结构的分析，采用反向水文地球化学模拟方法计算了南部高 TDS 地下水对水源地的补给量以及矿物相转化量。模拟结果从水化学角度进一步证实了南部黄土台塬区咸水入侵是马滩水源地地下水水质恶化的主要原因；水源地西侧的深沟断层割裂了咸水区与盆地的水力联系，这一特殊的水文地质结构是崔家大滩水质变化不大的主要原因。
위탐색란주시“삼탄”수원지수질악화원인，기우란주“삼탄”수원지불동역사시기적수화학수거，결합대함수층결구적분석，채용반향수문지구화학모의방법계산료남부고 TDS 지하수대수원지적보급량이급광물상전화량。모의결과종수화학각도진일보증실료남부황토태원구함수입침시마탄수원지지하수수질악화적주요원인；수원지서측적심구단층할렬료함수구여분지적수력련계，저일특수적수문지질결구시최가대탄수질변화불대적주요원인。
Deterioration of water quality was observed in the water source area of Santan in Lanzhou City for over 40 years. The change of water quality by recharge of high TDS groundwater from the south was modeled by reverse geochemical modeling. Historical water quality test results and the distribution of aquifers were used to support the modeling. The results verify that the intrusion of saline water from south is the main causation of the deterioration of water quality in Matan water source area and the recharge of saline water to Cuijiadatan water source area is blocked by Shengou deep fault and prevented the drastic change of water quality in this water source field.