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| Titel |
Characterizing interactions between surface water and groundwater in the Jialu River basin using major ion chemistry and stable isotopes |
| VerfasserIn |
L. Yang, X. Song, Y. Zhang, D. Han, B. Zhang, D. Long |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 16, no. 11 ; Nr. 16, no. 11 (2012-11-20), S.4265-4277 |
| Datensatznummer |
250013573
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| Publikation (Nr.) |
 copernicus.org/hess-16-4265-2012.pdf |
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| Zusammenfassung |
| The Jialu River, a secondary tributary of the Huaihe River, has been severely
contaminated from major contaminant sources, such as a number of
untreated or lightly treated sewage waste in some cities. Groundwater along
the river is not an isolated component of the hydrologic system, but is instead
connected with the surface water. This study aims to investigate temporal and
spatial variations in water chemistry affected by humans and to characterize
the relationships between surface water (e.g. reservoirs, lakes and rivers)
and groundwater near the river in the shallow Quaternary aquifer.
Concentration of Cl− in north Zhengzhou City increased prominently due
to the discharge of a large amount of domestic water. Nitrate and potassium
show maximum concentrations in groundwater in Fugou County. These high levels
can be attributed to the use of a large quantity of fertilizer over this
region. Most surface water appeared to be continuously recharged from the
surrounding groundwater (regional wells) based on comparison surface water
with groundwater levels, stable-isotopes and major ion
signatures. However, the groundwater of a transitional well (location SY3) seemed
to be recharged by river water via bank infiltration in September 2010.
Fractional contributions of river water to the groundwater were calculated
based on isotopic and chemical data using a mass-balance approach. Results
show that the groundwater was approximately composed of 60–70% river
water. These findings should be useful for a better understanding of
hydrogeological processes at the river-aquifer interface and ultimately
benefit water management in the future. |
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