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- Title
SURFACEWATER AND GROUNDWATER INTERACTION IN ALLUVIAL PLAIN.
- Authors
Elkrail, Adil; Shu Long-Cang
- Abstract
Stream-aquifer interaction due to groundwater extraction has been analyized. Streamflow depletion in alluvial plain area at Sonhuajiang river valley, China, can be determined as a result of groundwater withdrawal. Three - dimensional transient numerical model technique based on hydrologic and hydrogeologic parameters was used to understand and quantify stream-aquifer interaction. Numerical model was setup based on the constructed conceptual model of the study area. The alluvial aquifer is shown to be of high transmissivity with the pumping stresses having a larger radius of influence, impacting both the aquifer water levels and the streamflow in the nearby Songhuajiang River, Jilin Province, China. Drawdown and recharge boundary effects were observed in all observation wells in the area. The alluvial aquifer exhibited a piezometric surface behavior and responded as semi-confined aquifer. A semi-confining clay layer less than 3 m thick and an additional recharge source from a nearby stream-alluvial system were the probable causes of the observed phenomena. Induced infiltration, reduced baseflow, river gaining, river losing, and the effect of riverbed conductance on river leakage were performed using visual MODFLOW model in the lower reach of the Songhuajiang River valley.
- Subjects
CHINA; STORM drains; WATER temperature &; the environment; STREAM measurements; BASE flow (Hydrology); GROUNDWATER temperature; OCEAN temperature; ALLUVIAL plains; PLAINS
- Publication
Journal of Applied Sciences in Environmental Sanitation, 2009, Vol 4, Issue 3, p253
- ISSN
0126-2807
- Publication type
Article