Responses of River-Lake Interaction to Future Morphological Evolution: A Numerical Investigation of the Jing River–Dongting Lake System, Middle Yangtze River, China
Numerical investigation shows sustained erosion increases in the Jing River and reduces surface area in Dongting Lake, suggesting significant flood regulation implications.
Key Points
The analysis reveals a substantial erosion volume of 462 million m3 in the Jing River over three decades.
Findings indicate net deposition of 276 million m3 in the Dongting Lake area during the same period.
A hydro-morphodynamic model using HEC-RAS simulated long-term hydro-morphological evolution effectively.
This research highlights the importance of monitoring morphology changes for effective flood regulation management.