Groundwater flow path determination during riverbank filtration affected by groundwater exploitation: a case study of Liao River, Northeast China. Issue 14 (26th October 2017)

• Record Type: Journal Article
• Authors: Su, Xiaosi; Lu, Shuai; Gao, Ruimin; Su, Dong; Yuan, Wenzhen; Dai, Zhenxue; Papavasilopoulos, Eleftherios N.
• Is Part Of: Hydrological sciences journal. Volume 62:Issue 14(2017)
• Page Start: 2331
• Page End: 2347
• Publication Date: 2017-10-26
• Subjects: flow path determination -- riverbank filtration -- riverbed sediments -- water chemistry -- stable isotopes -- organic mass; Hydrology -- Periodicals; 551.4805
• DOI: 10.1080/02626667.2017.1383609
• Languages: English
• ISSNs: 0262-6667

Abstract

ABSTRACT: The groundwater flow path plays an important role in maintaining hydrological and ecological quality and security, which are important in the comprehensive management and use of both groundwater and surface water. In this study, an integrated multi-tracer-constrained framework was used to determine the groundwater flow path. The results show that there are shallow and deep flow paths in riverbank filtration, controlled by the different permeabilities of riverbed sediments and aquifers at different depths. The contribution of river water to shallow groundwater is less than that to deep groundwater because of the low permeability of the riverbed sediment in the dense muddy layer in the shallow slope of the river valley. This contribution decreases with increasing distance from the Liao River. The shallow groundwater quality is better than the deep groundwater quality because of its longer residence time.