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Journal of Chemistry
Volume 2015, Article ID 427579, 12 pages
Research Article

Groundwater Recharge and Hydrogeochemical Evolution in Leizhou Peninsula, China

1School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
2Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Beijing 10044, China
3Faculty of Horticulture, Chiba University, Chiba 271-8510, Japan
4Geography and Planning School, Sun Yat-sen University, Guangzhou 510275, China
5Guangzhou Institute of Geography, Guangzhou 510070, China

Received 3 May 2015; Revised 24 June 2015; Accepted 28 June 2015

Academic Editor: Franco Tassi

Copyright © 2015 Yintao Lu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An analysis of the stable isotopes and the major ions in the surface water and groundwater in the Leizhou Peninsula was performed to identify the sources and recharge mechanisms of the groundwater. In this study, 70 water samples were collected from rivers, a lake, and pumping wells. The surface water was considered to have a lower salinity than the groundwater in the region of study. The regression equations for δD and δ18O for the surface water and the groundwater are similar to those for precipitation, indicating meteoric origins. The δD and δ18O levels in the groundwater ranged from −60; to −25; and −8.6; to −2.5, respectively, and were lower than the stable isotope levels from the winter and spring precipitation. The groundwater in the southern area was classified as the Ca2+-Mg2+--type, whereas the groundwater in the northern area included three types (Na+-Cl-type, Ca2+-Mg2+--type, and Ca2+-Mg2+-Cl-type), indicating rapid and frequent water-rock exchange in the region. A reasonable conclusion is that the groundwater chemistry is dominated by rock weathering and rainwater of local origin, which are influenced by seawater carried by the Asian monsoon.