River management is the activity of systematically restoring and managing rivers through engineering and non engineering measures, aiming to balance multiple functional needs such as flood control, ecology, and landscape.
一、 Governance principles and objectives
The principle of comprehensiveness: coordinate functions such as flood control and drainage, ecological restoration, and landscape coordination to ensure that the river meets human needs and balances with nature.
Principle of naturalness: Prioritize the use of ecological construction methods (such as permeable materials and local vegetation), reduce human intervention, and restore the self purification capacity of the river channel.
Economic principle: Optimize cost-effectiveness and balance the sustainability of construction and later management.
二、 Main governance measures
1. Space control
Define the scope of river management and clarify the shoreline protection areas (such as the protection rate of the Yangtze River and Yellow River shorelines reaching 70%).
Clean up the “four chaos” (illegal occupation, illegal mining, illegal stacking, and illegal construction), demolish 150 million square meters of illegal buildings, and restore 1300 square kilometers of water area.
2 Ecological Restoration Technologies
Hard revetment renovation: Replace with ecological slope protection and build a biological habitat environment.
Wetland construction: The daily processing capacity of artificial wetlands reaches 1.3 million tons, and the water quality of Maozhou River has been improved to Class IV after treatment.
3. Intelligent management
Using satellite remote sensing, AI recognition and other technologies, achieve dynamic monitoring of basic data of 300000 rivers and lakes nationwide.