The Division and Characteristics of Karst Water Systems in Northern China
中国北方岩溶水系统划分与系统特征

In northern China,karst groundwater cycles in relatively isolated units and has formed a series of water resource systems on different scales.This paper deals emphatically with problems of two aspects.First,starting with the basic concept,the authors divided the karst groundwater in northern China into 119 systems.These sys-tems are characterized by high openness,vulnerable environmental quality,large dimensions,numerous water re-source elements,complex conversion relations of the water resource elements an...