Fresh water is the most important ecosystem service for human society. Its spatial flows establish the linkage between freshwater sources and human demands, and affect interregional water security. This is called “freshwater services flow” by researchers. A related, more general term, “ecosystem service flow,” is often used to describe the transmission of a specific ecosystem service.
Click here for original story, Water security status in northeast China deteriorated from 2005 to 2015
Source: Phys.org