Core Viewpoint - The Heihe River, China's second-largest inland river, has seen its length increase from over 500 kilometers to nearly 1000 kilometers over the past 20 years, highlighting significant environmental recovery efforts [1] Group 1: River Characteristics - The Heihe River is located across the Qinghai, Gansu, and Inner Mongolia provinces, serving as a crucial water source for millions of people [1] - The river faced severe challenges, including periods of complete drying up in its lower reaches, indicating a critical environmental situation [1] Group 2: Recovery Efforts - The revival of the Heihe River over the past two decades has been attributed to substantial water resource management and various afforestation and desertification control projects, including the "Green Belt Action" initiative [1] - The combination of sufficient water supply and community-driven environmental projects has played a vital role in the river's restoration [1]

Core Viewpoint - The transformation of the Jiuzhiyuan River in Zhangzhou, Fujian Province, showcases the successful integration of environmental restoration and cultural heritage preservation, leading to a revitalized community and enhanced quality of life for residents [2][5]. Group 1: Environmental Restoration - The local government initiated six major restoration projects in 2014, including dredging, bank protection, and pollution source management, which significantly improved the water quality and aesthetics of the river [2]. - The river's transformation from a polluted industrial area to a clean waterway has been a key factor in the revitalization of the surrounding community [3]. Group 2: Cultural Heritage and Community Engagement - The restoration efforts have harmonized historical preservation with natural beauty, allowing local culture to thrive and become a driving force for rural revitalization [3]. - The village has developed into a model area for cultural exchange and tourism, featuring historical exhibitions and recreational activities, thus enhancing local economic development [3][4]. Group 3: Community Impact and Activities - The river's revival has fostered community events, such as the Dragon Boat Festival, which strengthens local cultural identity and community bonds [4]. - The involvement of local residents in river management and cleanup initiatives reflects a collective commitment to maintaining the river's health and the community's well-being [3][4]. Group 4: Recognition and Future Outlook - Jiuzhiyuan River has been recognized as a pilot project for the "Happy Rivers and Lakes" initiative by the Ministry of Water Resources, highlighting its significance in urban development and ecological sustainability [5]. - The ongoing narrative of the river's transformation serves as an inspiration for future environmental and cultural projects, emphasizing the importance of protecting both natural ecosystems and cultural heritage [5].