CAJ | 학술논문

为了研究涞源盆地地下水的水质形成过程及其主要控制因素，在野外水文地质调查的基础上，对该区地下水的化学特征进行了分析，并利用水文地球化学软件 PH REEQCC 对地下水化学演化进行了反向模拟。结果表明：团圆向斜、东沟-大宁断层和牌坊2冯村断层等地质构造影响着地下水流场；方解石、白云石是决定研究区地下水化学演化的主要矿物；地下水中的主要化学成分及其化学演化与含水层岩性在空间上呈现一致性；人类活动可能造成了局部地下水中 pH 值、三氮、硫酸根和氯离子等指标的异常。
위료연구래원분지지하수적수질형성과정급기주요공제인소，재야외수문지질조사적기출상，대해구지하수적화학특정진행료분석，병이용수문지구화학연건 PH REEQCC 대지하수화학연화진행료반향모의。결과표명：단원향사、동구-대저단층화패방2풍촌단층등지질구조영향착지하수류장；방해석、백운석시결정연구구지하수화학연화적주요광물；지하수중적주요화학성분급기화학연화여함수층암성재공간상정현일치성；인류활동가능조성료국부지하수중 pH 치、삼담、류산근화록리자등지표적이상。
In order to better understand the evolution process and main cont rolling factors of local groundw ater quality in the Laiyuan Basin, the chemical characteristics of groundw at er w ere analyzed based on the field hydrogeological investigation, and inverse simulat ion was performed to address the chemical evolution of groundwat er using the hydrochemical softw are PH REEQC. T he results showed that groundwat er flow field is controlled by the geological structures such as Tuanyuan Syn-cline, Donggou-Daning Fault, and Paifang-Fengcun Fault; calcite and dolomite are t he main minerals involved in w ater- rock inter-actions; the main chemical constituents of groundwater and chemical evolution of groundw ater are consistent w ith those of aqui-fer lithology in space; and t he abnormality of pH and cont ents of nit rate, sulfate, and chloride are caused by human activities.