Since the early 1960's, the coastal aquifers of China have been studied for saltwater intrusion. With a transition zone of 1.5 to 6.0 km, and an aquifer area of more than 580 km2, the increasing extension of saltwater intrusion is a major concern in this area. A study conducted in the City of Laizhou in 1971, and in the City of Longkou in 1979, illustrated that excessive pumping of the groundwater in these areas had caused saltwater intrusion. In 1979, the saltwater intrusion area covered 16 km2. By 1989, the saltwater intrusion area became a continuous zone covering an area of 238 km2 in Laizhou. In the 1970's, the saltwater intrusion area in the southwestern part of the study area increased by 4 km2 each year. In the early 1980's, this number increased to 11.1 km2, and after the mid-1980's to 30 km2. This rapid increase reinforces the need for proper monitoring and controlling methods for saltwater intrusion.

Click Here For Complete Article Text

• Solinst Canada

• Water Monitoring

• Water Availability

• China

• Article