abstract:Pingtung Plain () is a plain area including parts of Pingtung County and Kaohsiung City. It includes the alluvial fan of Kaoping River, which forms the largest drainage area of rivers in Taiwan, and also passed by other shorter rivers such as Tungkang River, Linpian River (林邊溪) and Shihwen River (士文溪).
The result shows that the variation of hydraulicconductivity with the changes of groundwater head in observationwells in PingtungPlain is of fuzzy properties.