Uneven River Runoff in China Threatens Future Water Resource Exploitation.
The study analyzed river runoff data in the Dagujia River basin from 1966 to 2004. They found that most of the runoff occurs from June to October, with lower levels from November to April. The runoff patterns in different time periods were similar, except for 1997-2004 which showed significant changes. This could make it harder to manage water resources in the future.