岩溶地下水资源是西南地区社会和经济发展的重要保障, 随着城市化进程的不断加快, 西南地区岩溶地下水 污染问题也日益凸显, 直接威胁当地群众的健康安全, 已成为社会热点。以西南地区典型岩溶地下水系统污染实例 为研究对象, 通过分析每个岩溶地下水系统污染实例的水文地质条件、污染源特征、污染物迁移规律及污染危害等 方面, 归纳总结西南地区典型岩溶地下水系统污染模式, 分为四种: 间歇型入渗污染、持续型入渗污染、灌入型污染 和越流型入渗污染。该项研究便于识别污染物的运移特征及规律、掌握污染范围和污染程度, 为西南岩溶地区地下 水污染物的防治工作提供重要的借鉴意义。

Karst g roundw ater r eso urce is an impo rtant g ua rantee for the so cial and eco nomic develo pment in southwest China. With the continuous acceler ation of ur banizatio n pro cess, the pro blem of karst g ro undwater po llut ion in southwest China is be2 com ing increasingly prominent. Posing direct threats to the health and safety of the lo ca l people, it has become a ho t social issue. In this paper, w e studied the t ypical karst g r oundwater system po llution cases in southwest China. T hroug h t he analysis of the hy dr og eolog ical conditio ns, characteristics of pollution so urces, law o f pollutant mig ratio n, and po llution harm o f each karst gr oundwat er system, w e summarized the ty pical karst g ro undwater sy st em pollutio n models in southwest China, including inter2 mittent inf iltr atio n pollution, co nt inuo us infilt ratio n pollutio n, po uring pollutio n and leakage infiltrat ion po llution. This study can help r esear chers to better identify t he characteristics and law s of pollutants t ranspo rt, and mor e accurately g rasp the sco pe and ex tent of pollutio n. It can prov ide impo rtant refer ence for the preventio n and contr ol o f g r oundwater po llutants in karst areas in so uthw est China.

国家自然科学基金( 41602277; 41807218) ; 中国地质调查局地质调查项目( DD20160300; DD20160302)