title: Groundwater flow and contaminant transport modeling applications in urban area: scopes and limitations.
abstract: BACKGROUND
  A three-dimensional groundwater flow model was used to evaluate the groundwater potential and assess the effects of groundwater withdrawal on the regional water level and flow direction in the central Beijing area. A program of groundwater modeling aimed at estimating current contaminant fluxes to the central area and site streams via groundwater was developed.
  
  
  CONCLUSIONS
  The conceptual model developed for the site attempted to incorporate a complex stratigraphic profile in which groundwater flow and contaminant transport is strongly controlled by a shallow aquifer. Here, a conceptual model for groundwater flow and contaminant transport in central Beijing is presented.
  
  
  CONCLUSIONS
  Model simulations indicated that a sharp drop in the hydraulic head occurs at the center of the model area, which generates a cone of depression and a continuous decline of head with respect to time as a result of heavy groundwater abstraction.
authors.affiliation: Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences (Beijing), Beijing 100083, People's Republic of China. seyf009@yahoo.ca
authors.forename: Alfa-Sika Mande
authors.initials: AS
authors.lastname: Seyf-Laye
authors.forename: Liu
authors.initials: L
authors.lastname: Mingzhu
authors.forename: Gbandi
authors.initials: G
authors.lastname: Djanéyé-Bouindjou
authors.forename: Liu
authors.initials: L
authors.lastname: Fei
authors.forename: Kamaletdinova
authors.initials: K
authors.lastname: Lyutsiya
authors.forename: Bawa L
authors.initials: BL
authors.lastname: Moctar
authors.forename: Chen
authors.initials: C
authors.lastname: Honghan
mesh_terms: D002681:China; D002947:Cities; D060587:Groundwater / Q000032:analysis; D008962:Models, Theoretical; D058438:Water Cycle; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D014874:Water Pollutants, Chemical