“…Baseflow has been used as an approximation of groundwater discharge and play an important role in water resources management (Szilagyi et al, 2003;Tung et al, 2004). Many investigations on baseflow characteristics, such as baseflow estimation (Singh, 1968;Reilly and Kroll, 2003), baseflow prediction (Tung et al, 2004), and impacted factors on the baseflow (Wittenberg, 2003;Kirk et al, 2008), have been used in some rivers. The changes of baseflow in response to human activities and climate changes have also been studied (Cooper et al, 1995;Wittenberg, 2003;Kirk et al, 2008).…”