Dynamic impact of rainfall on hydrogeochemistry of epikarst spring in Luota Township, western Hunan Province

Su Chun Tian, Insititute of Karst Geology, Karst hydrogeological research department, Guilin, China and Xiaodong Pan, Insititute of Karst Geology,Chinese Academy of Geological Sciences, Karst hydrogeological research department, Guilin, China