The interaction between surface water and groundwater and its effect on water quality in the Second Songhua River basin,northeast China |
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| Authors: | Bing Zhang XIANFANG SONG YINGHUA ZHANG YING MA CHANGYUAN TANG LIHU YANG ZHONG-LIANG WANG |
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| Affiliation: | 1.Tianjin Key Laboratory of Water Resources and Environment,Tianjin Normal University,Tianjin,China;2.Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,China;3.Departments of Environmental Science & Landscape Architecture, Faculty of Horticulture,Chiba University,Chiba,Japan |
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| Abstract: | The relationship between surface water and groundwater not only influences the water quantity, but also affects the water quality. The stable isotopes (δD, δ 18O) and hydrochemical compositions in water samples were analysed in the Second Songhua River basin. The deep groundwater is mainly recharged from shallow groundwater in the middle and upper reaches. The shallow groundwater is discharged to rivers in the downstream. The runoff from upper reaches mainly contributed the river flow in the downstream. The CCME WQI indicated that the quality of surface water and groundwater was ‘Fair’. The mixing process between surface water and groundwater was simulated by the PHREEQC code with the results from the stable isotopes. The interaction between surface water and groundwater influences the composition of ions in the mixing water, and further affects the water quality with other factors. |
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