T11[Topic] Urban Geology

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[T11-O-5] Changes in flow direction due to changes in groundwater level in the paddy soil layer in Doyatsu small valley in Shimousa upland, Boso Peninsula, Southern Kanto Area, Central Japan: From Hydro-geological survey on Feb. 2021 – Jun 2026

*Osamu Kazaoka^1,6, Koichi Saito², Naoto Ito³, Takahiro Kojima^4,6, Shoichi Shiozaki⁵ (1. Chiba Prefectural Environment Foundation, 2. NPO Balance 21, 3. Groundwater pollution control room of Water Quality Conservation Division, Environmental Living Department, Chiba Prefecture Government, 4. Research Institute of Energy, Environment and Geology, HRO, 5. Disaster information room of Disaster Prevention Division, Disaster Prevention Equipment Management Department, Chiba Prefecture government, 6. Former Research Institute of Environmental Geology, Chiba)

Keywords:

change of groundwater flow,paddy field soil layer,Shimousa upland,perched groundwater,spring