Spatial variability in hydrochemistry of groundwater and surface water: A case study in Nanfei River catchment, China
Human activities, especial urbanization on a large scale, have significant effects on both quality and quantity of regional water resource. Nanfei River catchment has been chosen to study the relationship and interactions among different water bodies. Water samples along with Nanfei River were collected and analyzed to make clear the spatial variability of hydrochemistry in the catchment. Results show that: (a) Human activities,especial development of Hefei city, have an important influence on the quality of waters. When flowing through Hefei city, the water chemical type changes from HCO3-Ca to SO4-Na or Cl-Na; (b) The shallow groundwater in the catchment has contaminated. The main contaminants are NO3-, NH4+, the secondary contaminants are SO42- and Cl-. (c) Groundwater quality is affected by surface water and precipitation, and wetland is the zone where groundwater, surface water and rainwater interact. (d) Natural wetland has a kind of ability decreasing the concentration of NO3- and NH4+; comparatively, the surface water is prone to be polluted. The results provide a basis for further study on reducing eutrophication of Chaohu lake to protect the regional water resources.
J.Qian W.Zhao T Hong Y.Lu C.Tang
School of Natural Resources and Environmental Engineering, Hefei University of Technology, Hefei, Ch Graduate School of Science and Technology, Chiba University, Chiba, Japan Faculty of Horticulture, Chiba University, Chiba-ken, Japan
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
887-890
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）