Abstract
Groundwater in Yinchuan City has been heavily over-exploited, thus leading to the formation of depression cones in confined and phreatic groundwater environments. The depression cones have an important influence on the hydrodynamic and hydrochemical fields of groundwaters. The evolution of depression cones was analyzed on the basis of the monitoring data on groundwater level accumulated in the past 14 years. The ratio of rCl−/rCa2+ showed that phreatic water circulation was intensified, and confined groundwater was affected by external factors. Mass balance of Cl− showed confined water mixed with about 11% phreatic water. It is shown that the alternative function of confined water was affected by external factors. At last, the evolution of groundwater hydrochemical field on the basis of groundwater chemical composition showed that phreatic water quality has been improved whereas confined water quality has been deteriorated. Saturation indices of minerals with respect to phreatic and confined waters were calculated by using PHREEQC.
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References
Dong Zhifeng, Zhu Lijun, Wu Pan, Shen Zheng, and Feng Zhiyong (2005) Hydrogeochemistry of karst underground waters at shallow depth in Guiyang City, Guizhou Province [J]. Chinese Journal of Geochemistry. 24, 194–200.
Feng Qiyan and Han Baoping (2002) Hydrogeochemical simulation of water-rock interaction under water flood recovery in Renqui Oilfield, Hebei Province, China [J]. Chinese Journal of Geochemistry. 21, 156–162.
Guo Yonghai, Shen Zhaoli, and Zhong Zuoshen (1997) Geochemical simulation of groundwater chemical environment in Huabei Plain [J]. Science in China (Series D). 27, 360–365 (in Chinese).
Su Xiaosi and Lin Xueyu (2004) Cycle pattern and renewability evaluation of groundwater in the Yinchuan Basin: Isotopic evidence [J]. Resource Science. 26, 29–35 (in Chinese with English abstract).
Wang Li (2003) Geochemical Evolution Rule of Yucheng Basin [D]. Doctoral Dissertation of Teachers University, Beijing (in Chinese).
Zhang Li, Wang Li, Wang Hongying, and Yu Dongmei (2003) Groundwater Resource of Ningxia [M]. Ningxia People Press, Yinchuan (in Chinese).
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Sun, Y., Qian, H. & Wu, X. Hydrogeochemical characteristics of groundwater depression cones in Yinchuan City, Northwest China. Chin. J. of Geochem. 26, 350–355 (2007). https://doi.org/10.1007/s11631-007-0350-x
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DOI: https://doi.org/10.1007/s11631-007-0350-x