Modes and characteristics of karst groundwater system in north of China

摘要: The classification of current modes northern karst groundwater system focuses primarily on water resources or itself,which does not meet with the multiple needs mine control and utilization lacks systematicness practicality.In accordance large amounts literatures,a comprehensive analysis characteristics is made in this paper.The divided into eleven categories according to relationship between structural feature,recharge characteristics,strong flow zones major structural(or stratum) trend,and discharge characteristics.And seven hydrogeological coal beds North China field are summarized.