Salt transport and pollution caused by exploiting groundwater at a large-scale water source area
Xinxiang city of China is shown as an example where changes in groundwater flow caused by groundwater pumping have induced changes to solute transport properties. In this paper we examine results from shallow groundwater flow, hydrochemistry and the spatial distribution of isotopes. There are many reasons why shallow groundwater is polluted, including wastewater infiltration, wastewater irrigation, fertilization and applied pesticides. However, the most important reason is the changes of flow field which have resulted from long-term exploitation of groundwater that has formed a deep depression cone. The flow field where groundwater moves from the north mountain region to the south alluvial plain was changed. Salt and contaminants are transported with groundwater seepage. Therefore, polluted water from the north and salty water from the south flow to the center of the cone. The transport leads to worse water quality at adjacent water source areas.
G.Pan Y.Lin C.Tang F.Li
Institute of Resource & Environment, Henan Polytechnic University, Jiaozuo, China Faculty of Horticulture, Chiba University, Chiba-ken, Japan New Institute, Gouda, The Netherlands
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
1105-1108
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）