Hiroaki Abe   Changyuan Tang   Nozomu Takeuchi   Akihiko Kondoh   
Groundwater 56(3) 470-481 2018年5月 [査読有り]
Intensive groundwater development in the urban area of the Nagaoka Plain, Japan, has induced changes in the pH and saturation index of calcite in groundwater. To account for these chemical changes, it is important to determine seasonal variations ...