Fig. 1. Simplified cross-section of groundwater bearing aquifer.
Fig. 2. The global distribution of lithology with depth and the global average porosity with depth that is filled with groundwater (in oblique lines) (Gleeson et al., 2016).
Fig. 3. Geology of Yangsan county (modified after GSK, 1964).
Table 1. Hydrogeology of Yangsan county (GSK, 1964)
Table 2. A comparison of presumed groundwater reserves based on three selective methods
Table 3. A rate of groundwater recharge amounts and exploitable amounts compared with groundwater reserves in Yangsan city
Table 4. A change of groundwater reserves in accordance with a long-term fluctuation of groundwater level