Seasonal Variations of Hydrochemical Characteristics of Groundwater in Changping Plain, Beijing

  • 1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Beijing Water Authority, Beijing 100038, China;
    3. Earth System Science Interdisciplinary Center, University of Maryland, College Park, 5825 University Research Ct, College Park, MD 20740, USA;
    4. Institute of Metrological Administration and Strategic Planning, National Institute of Metrology, AQSIQ, Beijing 100029, China

Received date: 2017-04-22

  Revised date: 2017-09-30

  Online published: 2017-11-30

Supported by

National Natural Science Foundation of China (41572240)


Changping Plain, located in the northwest of Beijing, has become an important groundwater recharge area for the Beijing Plain and an important source for the urban water supply. In this study, groundwater samples were collected during the dry and wet seasons in 2015 from 24 monitoring wells distributed in Changping Plain. A Piper-Tri-linear diagram, a Schoeller diagram, a Gibbs diagram, and the isotope technique were used to investigate the temporal and spatial variations in the concentrations of groundwater hydrochemicals and the sources of groundwater recharge. The results indicated: 1) seasonal variations in the concentrations of HCO3-, Ca2+, and Na+ were significant; the spatial variations of these ions were more dramatic in the dry season than in the wet season due to the dilution effect of precipitation; 2) Most groundwater samples had a HCO3-Ca-Mg based hydrochemical type and a few had a HCO3-Na-K based hydrochemical type; the hydrochemical type tended to evolve from HCO3-Ca-Mg based to HCO3-Na-K based in some monitoring wells that showed distinct seasonal variation; 3) the groundwater in the study area originated mainly from atmospheric precipitation, and it is affected by evaporation and concentration processes.

Cite this article

JIANG Tisheng, QI Junyu, WANG Mingyu, LIU Qingzhe, QU Cixiao, CHU Junyao . Seasonal Variations of Hydrochemical Characteristics of Groundwater in Changping Plain, Beijing[J]. Journal of Resources and Ecology, 2017 , 8(6) : 655 -663 . DOI: 10.5814/j.issn.1674-764x.2017.06.013


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