Objective The renewable capacity is an important attribute of groundwater resources. Most previous studies have focused on the porous aquifer systems by the measurement and analysis of isotopes deuterium （D）, oxyge...Objective The renewable capacity is an important attribute of groundwater resources. Most previous studies have focused on the porous aquifer systems by the measurement and analysis of isotopes deuterium （D）, oxygen-18 （180）, tritium （3H）, and carbon-14 （14C） （Chen Zongyu et al., 2010; Bozdag and Gocmez, 2016）, and few studies have been conducted on karst groundwater systems. The major reason lies in the complexity of groundwater hydrogeological conditions in karst areas, and most of them are open systems. In this study, we selected the Pingyi-Feixian karst groundwater system in Shandong Province, northern China, as a typical study area in an attempt to evaluate the renewable capacity by 14C age and the δ13C mixing model. The spatial characteristics and spatial variability in renewable capacity of karst groundwater were further discussed, providing a reference for the exploitation of karst grotmdwater in the similar region.展开更多
基金funded by the National Natural Science Foundation of China(grant No.41502253)the National Key Research and Development Project(grant No.2017YFC0406106)
文摘Objective The renewable capacity is an important attribute of groundwater resources. Most previous studies have focused on the porous aquifer systems by the measurement and analysis of isotopes deuterium （D）, oxygen-18 （180）, tritium （3H）, and carbon-14 （14C） （Chen Zongyu et al., 2010; Bozdag and Gocmez, 2016）, and few studies have been conducted on karst groundwater systems. The major reason lies in the complexity of groundwater hydrogeological conditions in karst areas, and most of them are open systems. In this study, we selected the Pingyi-Feixian karst groundwater system in Shandong Province, northern China, as a typical study area in an attempt to evaluate the renewable capacity by 14C age and the δ13C mixing model. The spatial characteristics and spatial variability in renewable capacity of karst groundwater were further discussed, providing a reference for the exploitation of karst grotmdwater in the similar region.
