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Updated: Jun 14, 2025
07:15
Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure
Published on: April 25, 2025
223
Ecological environmental flow estimation for rivers with complicated hydraulic conditions
Xiaolong Liu1, Hanlin Song2, Yufeng Ren3
1School of Architecture and Art Design, Nanjing Polytechnic Institute, Nanjing 210048, China
Summary
This study introduces a new framework for estimating ecological environmental flow in tidal rivers, crucial for sustainable water management in estuaries. It addresses water quality and sediment needs, vital for coastal ecosystems and port protection.
Area of Science:
- Estuarine and Coastal Ecology
- Water Resource Management
- Environmental Engineering
Background:
- Estimating ecological environmental flow is critical for sustainable water resource management in estuaries and river basins.
- Tidal rivers, especially those along the Yellow Sea coast of China, present unique challenges due to their dynamic nature.
- Existing frameworks may not adequately address the specific needs of medium tidal estuaries with complex water quality and sediment dynamics.
Purpose of the Study:
- To develop a comprehensive ecological environmental flow framework tailored for medium tidal estuaries.
- To propose methods for water quality-based ecological flow in tidal gate-controlled rivers.
- To establish a water demand method for scouring and silting to protect ports in coastal viscous sediment environments.
Main Methods:
- Integration of instream water requirements for water quality, sediment, and basic ecological flow.
- Consideration of temporal and spatial variations in environmental flow requirements for tidal rivers.
- Development of specific methodologies for water quality-based flow and sediment-related water demand.
Main Results:
- A novel ecological environmental flow framework designed for dynamic medium tidal estuaries.
- Methods proposed for water quality-based ecological flow and sediment management in tidal rivers.
- Demonstration of the framework's ability to integrate diverse ecological flow components.
Conclusions:
- The developed framework provides a vital reference for water resource allocation and ecological protection in tidal rivers.
- Continuous monitoring of ecological data is essential for accurate environmental flow determination.
- The study offers a significant advancement in managing water resources in complex estuarine systems.
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