Core Viewpoint - The article emphasizes the need for restoring urban rivers to their natural state, highlighting the ecological and social importance of such restoration efforts [1][2] Group 1: Current State of Urban Rivers - Many urban rivers have been altered for modernization, losing their natural flow and ecological functions due to concrete encasements and channelization [1] - These changes have led to a decline in water self-purification abilities, loss of aquatic habitats, and disconnection from surrounding ecosystems [1] Group 2: Restoration Strategies - Restoration should not merely involve dismantling existing structures but should adopt systematic and ecological methods to revive river vitality [1] - Key strategies include creating diverse river conditions with deep pools, shallow areas, and varied flow rates, as well as using natural materials for riverbed restoration [1][2] - Planting native vegetation along riverbanks to create multi-layered green belts that filter pollutants and stabilize soil is essential [1][2] Group 3: Integrated Urban Planning - A shift from "engineering-first" to an ecology-first approach is necessary for effective river management [2] - Urban planning should allocate sufficient ecological space for rivers and prioritize the restoration of severely degraded sections [2] - Incorporating "sponge city" concepts can enhance urban rainwater management, reducing flood impacts and providing stable ecological flows to rivers [2] Group 4: Community Engagement and Education - River restoration should be part of broader urban ecological civilization efforts, involving public participation and environmental education [2] - Initiatives like ecological monitoring, public water activities, and educational exhibits can raise awareness and foster respect for water ecosystems [2]