-Pumping groundwater As a result, the land of groundwater causes increasing flood levels and when flooding. Which the relevant government units have tried to restrict groundwater pumping.
- Pumping groundwater As a result, land subsidence caused flood levels increasing and the water longer. The relevant government agencies have tried to restrict groundwater pumping.
- pumping groundwater The land subsidence caused flood levels increased, and the time the flood are longer. The government has tried to limit the related pumping groundwater