More than 20,000 apartments in France are now heated by warm underground water drawn from a heat reservoir in a geologic structure near Paris called the Paris Basin.

Due to the extremely arid climate and high salt context in soil and underground water, the vegetation is very sparse and only 12 species of plants were found in the center of Tarim basin.

Based on the compositing characteristics of underground water resources and cities of Haihe River Basin, cities can be divided into three types-piedmont plain, median plain and coastal plain.