| Characteristics of natural low pH groundwater in the coastal aquifers near Beihai, China |
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| 作者姓名： | Xun ZHOU Rui LI Hua ZHANG Li ZHANG |
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| 作者单位： | School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China |
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| 摘 要： | Groundwater with low total dissolved solids （less than 200 mg/L） occurs in the unconfined and confined aquifers near Beihai in southern Guangxi, China. Under natural conditions the groundwater ranges in pH from 3,33 to 7,0 with an average value of 5.12. The pH in the unconfined aquifer varies from 3.67 to 7.0 with an average value of 5.17 and the pH in the confined aquifer is in the range 3.33-6.97 with an average value of 5.07. The pH in the groundwater does not show significantly increasing or decreasing trends with time. Fluctuations in pH exist at some of the monitoring wells and the pH in groundwater is a bit higher in the rainy season than in the dry season, Monitoring data show that the pH in rainwater is higher than in groundwater in the unconfined aquifer, whereas the pH in the latter is a bit higher than in the confined aquifer. A slightly decreasing trend in the pH was also found from the inland area to the coastal zone. The occurrence of weakly acidic groundwater in this area is attributed to the recharge from low pH precipitation and the multi-aquifer and leaky groundwater system.
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| 关 键 词： | 地下水 含水层 广西 pH值 溶解固体 |
Characteristics of natural low pH groundwater in the coastal aquifers near Beihai, China |
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| Xun ZHOU Rui LI Hua ZHANG Li ZHANG.Characteristics of natural low pH groundwater in the coastal aquifers near Beihai, China[J].Chinese Journal of Geochemistry,2006,25(B08):228-228. |
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| Abstract: | |
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| Keywords: | pH acidic groundwater coastal aquifer Beihai Guangxi China |
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