The recent international study shown an alarming findings for China’s capital city, Beijing, where it is sinking at an alarming rate each year.
According to the research the city is dropping by as much as 11 centimeters (4 inches) in some districts per annum.
The research pointed out that the central districts of the capital are among the most affected.
Depletion of city’s groundwater, was identified as the cause of sinking – the study reveals.
With the help of satellite imagery and Global Positioning System (GPS) data, the researchers analyzed the topographical trends from 2003 to 2010 and found out the city, which home of over of over 20 million people, was sinking at an alarming rate.
Two thirds of the Beijing’s water needs for industrial and agricultural used are came from its groundwater, making it as a main water source of the city.
Meanwhile, the local Chinese media outfit Sina said the city consumes 3.5 billion liters of water per year.
The accumulation of waters from the ground affects the solid soil compacts that leads to sinking. The rapid sinking has a negative impact to buildings and public works projects, including rail ways.
It can be remembered that China has long problems in managing its tremendously growing demands in water. In 2011, historic droughts was recorded in Southern part of the country caused billions of dollars loss in agriculture crops.
The findings of the study was published this month and supported by China’s National Natural Science Foundation.