Journal of Guangxi Normal University(Natural Science Edition) ›› 2018, Vol. 36 ›› Issue (3): 113-120.doi: 10.16088/j.issn.1001-6600.2018.03.017

• Orginal Article • Previous Articles     Next Articles

Red Bed Karst and Its Hydrochemical Characteristics of Groundwater in the Downstream of Qingjiang River, China

LIN Yongsheng1, 2, PEI Jianguo1, 2, *, ZOU Shengzhang1, 2, DU Yuchao1, 2, LU Li1, 2   

  1. 1.Institute of Karst Geology,CAGS, Guilin Guangxi 541004, China;
    2.Karst Dynamiccs Laboratory,MLR&GZAR,Guilin Guangxi 541004,China;
  • Received:2018-01-02 Online:2018-07-17 Published:2018-07-17

Abstract: The Tertiary red-bed, widely spread in the downstream of Qingjiang River, is composed of sandstone with mudstone, shale,and the bottom of conglomaerate. The thickness is more than 300 meters, some degree of karst development, one of which karst caves has the development value. To further grasp the red layer of groundwater quality change trend, 30 groups of samples were taken from the red beds area groundwater, using descriptive analysis, correlation analysis and other statistical methods, the hydrochemical characteristics of groundwater are summarized.The results showed that the groundwater type in the red zone was mainly based on HCO3-Ca or HCO3-Ca·Mg, and the groundwater chemical composition had obvious spatial variability. Two points Al exceeds the standard value of the groundwater V quality(500 μg/L), which should be taken seriously to prevent water pollution. The Sr content of 19 water points exceeds the limit of natural drinking mineral water(200 μg/L), which suggests the evaluation of strontium mineral water.

CLC Number: 

  • P641.12
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