Core Viewpoint - The article emphasizes the importance of water source protection and ecological conservation in Beijing's Miyun District, highlighting successful initiatives that balance environmental protection with rural development [1][3]. Group 1: Water Source Protection Initiatives - Miyun District has implemented a series of plans to ensure the safety of the Miyun Reservoir's water quality, maintaining it at a stable national Class II standard [1]. - The establishment of the Beijing No. 024 Science and Technology Institute in 2019 has led to significant advancements in water source protection and pollution prevention, particularly in the Black Mountain Temple Village [1][2]. Group 2: Technological Innovations - Experts have developed key technologies, including the use of reed plants for wetland restoration and a sewage purification process utilizing chestnut shell biochar, resulting in a demonstration project capable of treating 15 tons of wastewater daily [2]. - The implementation of efficient pollution control models, such as "Mulberry + Wild Buffalo Grass" and "Scutellaria + Wild Buffalo Grass," has improved soil and water conservation capabilities [2]. Group 3: Environmental and Economic Outcomes - The initiatives have led to the resource utilization of agricultural waste and compliance with wastewater treatment standards, significantly improving the village's appearance and environmental quality [3]. - Training and outreach programs have enhanced local residents' skills and engagement in ecological protection, fostering the development of green organic agriculture and eco-tourism [3]. - Black Mountain Temple Village has received accolades such as "UN Sustainable Development Demonstration Village" and "Beijing Beautiful Leisure Village," showcasing its role as a model for pollution prevention [3].