CAJ | 학술논문

银川平原地处中国西北干旱气候区，平原的西部是贺兰山，由一系列正滑断层连接。平原的东部与黄河相连，紧邻鄂尔多斯平台。平原的南部与牛首山东北断裂带接壤。平原的底部是石炭纪，二叠纪或者奥陶系。根据地下水水化学特征分析，本文旨在确定银川平原地下水流系统，地下水化学类型从西到东变化，西部主要是HCO3-SO4型，中部为HCO3–Cl型，到东部逐渐过渡为Cl-SO4型，一直延伸到鄂尔多斯平台边缘。从南向北，南部主要是HCO3-SO4型，中部为HCO3-Cl和SO4-HCO3型，北部化学类型复杂，主要是SO4-HCO3和Cl-SO4型。
은천평원지처중국서북간한기후구，평원적서부시하란산，유일계렬정활단층련접。평원적동부여황하상련，긴린악이다사평태。평원적남부여우수산동북단렬대접양。평원적저부시석탄기，이첩기혹자오도계。근거지하수수화학특정분석，본문지재학정은천평원지하수류계통，지하수화학류형종서도동변화，서부주요시HCO3-SO4형，중부위HCO3–Cl형，도동부축점과도위Cl-SO4형，일직연신도악이다사평태변연。종남향북，남부주요시HCO3-SO4형，중부위HCO3-Cl화SO4-HCO3형，북부화학류형복잡，주요시SO4-HCO3화Cl-SO4형。
The Yinchuan plain is located in the arid climate zone of NW China. The western margin of the plain is the He-lan mountain connecting a series of normal slip faults. The eastern margin of the plain connects with the Yellow River and adja-cents with the Ordos platform. The south of the plain is bordered by the EN fault of the Niushou mountain. The bottom of the plain is the Carboniferous, Permian, or Ordovician rocks. Based on the analysis of groundwater hydrochemical indicators,this study aims to identify the groundwater recharge and discharge in the Yinchuan plain, China. The hydrochemical types of the groundwater are HCO3 –SO4 in the west, HCO3 –Cl in the middle, and Cl–SO4 in the east. The hydrochemical types are HCO3 –SO4 in the south, HCO3 –Cl and SO4 –HCO3 in the middle. The hydrochemical types are complex in the north, mainly SO4 –HCO3 and Cl–SO4 .