Journal
ENVIRONMENTAL EARTH SCIENCES
Volume 60, Issue 8, Pages 1731-1738Publisher
SPRINGER
DOI: 10.1007/s12665-009-0310-3
Keywords
Groundwater origin; Recharge estimate; Ordos Plateau
Funding
- Groundwater Circulation and Rational Development in the Ordos Plateau (GCR-DOP) [1212010634204]
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Groundwater is a valuable resource in the semiarid Ordos Plateau region where abundant mineral resources, such as coal, natural gas, and halite, are present. With resources development, groundwater demand will increase dramatically. The origin identification and recharge estimates of groundwater are significant components of sustainable groundwater development in the Ordos Plateau. Groundwater and precipitation samples were taken and the isotopic compositions delta(2)H, delta(18)O, and chloride were analyzed to identify groundwater origins and to estimate recharge rates. The delta(2)H and delta(18)O of the groundwater show that the groundwater recharge is of meteoric origin. The chloride mass balance (CMB) method was used to quantify recharge rates of groundwater in the Ordos Plateau, which varies from 2.93 to 22.11% of the effective annual rainfall. Recharge rates estimated by CMB were compared with values obtained from other methods and were found to be in good agreement. This study can be used to develop effective programs for groundwater management and development.
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