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Volume 36 Issue 5
Oct.  2017
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Article Navigation >  CARSOLOGICA SINICA  > 2017  >  36(5): 684-690
ZHOU Changsong, ZOU Shengzhang, ZHU Danni, XIE Hao, CHEN Hongfeng, YU Jianguo. Contrast study of Ca2+ and HCO3- concentration in karst-water samples between field test and laboratory test values[J]. CARSOLOGICA SINICA, 2017, 36(5): 684-690. doi: 10.11932/karst2017y33
Citation: ZHOU Changsong, ZOU Shengzhang, ZHU Danni, XIE Hao, CHEN Hongfeng, YU Jianguo. Contrast study of Ca2+ and HCO3- concentration in karst-water samples between field test and laboratory test values[J]. CARSOLOGICA SINICA, 2017, 36(5): 684-690. doi: 10.11932/karst2017y33
shu

Contrast study of Ca2+ and HCO3- concentration in karst-water samples between field test and laboratory test values

doi: 10.11932/karst2017y33
  • 1.

    Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MLR & GZAR/Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification

  • 2.

    Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MLR & GZAR/Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification/China University of Geosciences (Beijing)

  • Publish Date: 2017-10-25
    Abstract
  • In order to grasp the differences of Ca2+and HCO3- concentration in karst water between field test and laboratory test values, 85 groundwater samples collected from Zunyi, Hechi and Loudi City were analyzed. The results show that 88.2% of the sample sites of Ca2+ have field values greater than the experimental values, while 64.7% of the sample sites of HCO3- have field values greater than the experimental values. Using the ratio method, (CaY/CaS) is of an average value of 1.11, mainly concentrating between 1.0 and 1.2, accounting for 70% of the total, and (HCO3Y/HCO3S) with a average value of 1.02, mainly concentrated in between 0.95 and 1.1, accounting for 75% of the total. Under certain conditions of the laboratory test error, artificial random error has some impact on the result of the test. The results provide basic data to improve the quality of field surveys of underground water.

     

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