CAJ | 학술논문

了解地表水与沿岸地下水的水化学特征及其形成作用，对保护地下水资源和对其合理开发利用具有十分重要的意义。在系统采集奎河河水与沿岸地下水的基础上，采用描述性统计、主要阴阳离子Piper三线图等方法对水样的水化学特征及其形成作用进行了分析。结果表明：①从空间角度来说，位于奎河不同断面上的沿岸地下水的水化学类型及其离子浓度特征具有各自的特点，不同断面处的奎河河水也显现出不同的特性；从时间角度来说，即使在同一断面处的奎河河水以及沿岸地下水，其丰水期和枯水期离子浓度特征也有所差异。②不同断面处影响地下水水化学类型形成的优势作用并不相同，表现为徐村断面处受溶滤作用影响较大，黄桥闸较其他两断面处受蒸发浓缩作用影响较强，石桥断面处阳离子交替吸附作用显著，临近奎河河水的地下水受混合作用影响明显，而人类活动对各个断面处的地下水都有着不同程度的影响。③奎河河水的水化学形成优势机制是蒸发浓缩作用，并且河水对河床中碳酸盐矿物的溶解也极大地影响着河水中离子组成特征的形成。同时，设闸蓄水、采引灌溉等人类活动也对奎河河水的水化学演化产生着巨大的影响。
료해지표수여연안지하수적수화학특정급기형성작용，대보호지하수자원화대기합리개발이용구유십분중요적의의。재계통채집규하하수여연안지하수적기출상，채용묘술성통계、주요음양리자Piper삼선도등방법대수양적수화학특정급기형성작용진행료분석。결과표명：①종공간각도래설，위우규하불동단면상적연안지하수적수화학류형급기리자농도특정구유각자적특점，불동단면처적규하하수야현현출불동적특성；종시간각도래설，즉사재동일단면처적규하하수이급연안지하수，기봉수기화고수기리자농도특정야유소차이。②불동단면처영향지하수수화학류형형성적우세작용병불상동，표현위서촌단면처수용려작용영향교대，황교갑교기타량단면처수증발농축작용영향교강，석교단면처양리자교체흡부작용현저，림근규하하수적지하수수혼합작용영향명현，이인류활동대각개단면처적지하수도유착불동정도적영향。③규하하수적수화학형성우세궤제시증발농축작용，병차하수대하상중탄산염광물적용해야겁대지영향착하수중리자조성특정적형성。동시，설갑축수、채인관개등인류활동야대규하하수적수화학연화산생착거대적영향。
Understanding hydro-chemical characteristics and formation mechanism of surface water and groundwater is very important for protecting and utilizing groundwater resources rationally.Based on the sample of Kuihe river water and its coastal groundwater, methods including descriptive statistics and three lines Piper diagram of major ions were used to analysis the water’ s hydro-chemical characteristics and forming effect.Research results show that:(1)In the term of space, the hydro-chemistry type and its concentration in Kuihe coastal groundwater from different sections has different characteristic and so it is in Kuihe water.In the term of time, Kuihe river water and its coastal groundwater in one section also have different features when it is in wet season and in dry season. (2)The advantage effects caused by groundwater hydro-chemistry types from different sections are also not the same.The groundwater’s hydro-chemistry type of Xucun section is greatly influenced by leaching effect.The effect of evaporation and concentration is stronger at Huangqiaozha section than the other two sections.As to Shiqiao section, the positive ion alternately adsorption plays an important role.And human activities have more or less influence on groundwater near Kuihe River in each section.(3)The advantage mechanism formed by Kuihe river water’s hydro-chemistry type is evaporation and concentration effect.Also, the dissolution of carbonate minerals in riverbed also has greatly effects on the formation of ion composition characteristics.At the same time, human activities such as setting brake to store water and irrigation also have a huge impact on the Kuihe river water chemical evolution.