Where do salty tides mostly occur? In areas at the mouths of rivers, seasonal rainfall is low, which reduces the flow of fresh water from rivers to the ocean. Then seawater flows back into rivers and invades urban groundwater, causing the salinity of drinking water to rise, forming a salt tide phenomenon.
Answer: Areas at the mouths of rivers and seas
Salt tides mostly occur in areas where rivers estuary. The reason is that due to seasonal low rainfall, the amount of fresh water flowing from rivers to the ocean decreases. Seawater flows back into rivers and invades urban groundwater, causing the salinity of drinking water to rise. Solutions generally include establishing an early warning mechanism and adopting water regulation to suppress salty water and replenish fresh water.