《条例》贵在约束力大，也贵在可行性强。例如，密云水库管理范围以及潮河、白河干流河道管理范围 内，禁止违法建设建筑物、构筑物，未经处理达标、直接排放污水，施用化肥农药，网箱养殖等；范围 外100米、1000米也分别做了明确规定。防微杜渐、细化要求，是为了严格河道和岸线管理；关口前 移、精准防治，是为了最大程度地避免水污染。《条例》既引导水源地周边产业向绿色转型、发展不影 响水质的产业，又勒令挑战底线的单位及个人付出代价，一张一弛、一疏一堵，在耐心疏导的温度与法 律震慑的力度间寻找平衡，为密云水库水源保护工作求取出"最大公约数"。 密云水库的法治大坝，不仅守护了一库清水，也为更多水源地保护开了个好头。我国众多山区河流、大 型水库面临跨区域治理难题，协调难度大、保护标准不一等问题较为普遍；现行防洪法、水污染防治法 等多为综合性规定，针对性不强，部分条款与当前生态保护新形势、新要求不相适应。从分散治理到系 统治理、从行政管控到法治保障，《条例》打破属地管理的局限，构建起跨区域协同治理的法治模式， 为破解水源地保护的体制机制障碍提供了宝贵经验，为保障更多地方的水安全贡献智慧。 水兴则城兴，水安则民安。密云水库的清澈与充 ...

Core Viewpoint - The article highlights the successful implementation of cross-regional environmental protection regulations for the Wanfeng Lake, leading to significant improvements in water quality and ecological restoration in the area [1][3][5]. Group 1: Environmental Issues - Wanfeng Lake has faced severe ecological challenges due to unregulated fish farming and poor inter-regional governance, resulting in water quality deterioration and eutrophication [3][5]. - In 2017, inspections revealed that the fish farming area exceeded planned limits by 3.93 times, with daily feed inputs surpassing 5,000 tons, leading to a significant increase in nitrogen and dissolved oxygen levels [3]. Group 2: Legislative Actions - The "Wanfeng Lake Protection Regulations" were enacted on January 1, 2023, providing a legal framework for environmental protection in the region [3][5]. - Additional regulations from neighboring regions, including the "Guizhou Wanfeng Lake Protection Regulations" and "Qujing Wanfeng Lake Protection Regulations," were also implemented on the same date [3]. Group 3: Collaborative Efforts - A joint enforcement command was established in March 2022 among the three provinces, focusing on cross-regional environmental law enforcement and emergency response [5]. - As of now, significant actions have been taken, including the removal of 4.3 million square meters of illegal fish farming structures and the closure of three non-compliant enterprises [5]. Group 4: Water Quality Improvement - Following the implementation of protective measures, the water quality in Wanfeng Lake has improved to Class I, meeting drinking water standards, marking the best water quality recorded [3][5]. - By May 2025, the water quality maintained a Class II standard, with transparency exceeding 2.5 meters, indicating a gradual recovery of aquatic biodiversity [5].

Core Viewpoint - The article discusses the long-term efforts and challenges in the ecological restoration and pollution control of Taihu Lake, highlighting the transition from severe pollution to improved water quality over 30 years, with a focus on collaborative governance and innovative solutions to address the complex pollution issues [1][4][19]. Group 1: Water Quality Improvement - Taihu Lake's water quality has improved from Class V to Class III over 30 years, establishing itself as a benchmark for large lake nutrient management internationally [1]. - The average depth of Taihu Lake is 1.9 meters, making it a shallow lake with limited self-purification capacity, which complicates pollution management [2][3]. - In 2022, the population in the Taihu basin accounted for 4.8% of the national total, and the regional GDP represented 9.8% of the national GDP, indicating significant economic activity in the area [3]. Group 2: Pollution Sources and Challenges - The shallow nature of Taihu Lake allows sunlight to reach the bottom, promoting blue-green algae growth, which is exacerbated by industrial pollution and urbanization in the surrounding areas [2][3]. - The 2007 blue-green algae outbreak highlighted the complexity of pollution sources, leading to a shift in focus from ecological restoration to source control and pollution interception [4][6]. - The Taihu basin has faced severe pollution, with 67% of monitored points classified as inferior Class V water quality, indicating a critical need for effective pollution control measures [3]. Group 3: Governance and Collaborative Efforts - The governance of Taihu Lake has evolved from fragmented management to a more coordinated approach, with the establishment of inter-agency collaboration and joint initiatives among cities [15][16]. - The introduction of the Taihu Lake water pollution prevention office in 2009 marked a significant step towards unified management of water quality across different jurisdictions [16]. - Recent initiatives include the establishment of cross-regional cooperation mechanisms and joint law enforcement efforts to tackle pollution effectively [17][18]. Group 4: Economic Transformation and Sustainable Development - The shift from high-pollution industries to green, low-carbon economic models is crucial for the sustainable development of the Taihu region, with significant reductions in polluting industries [12][13]. - The transformation of Zhou Tie Town from a chemical industry hub to an eco-friendly area demonstrates the potential for economic growth while prioritizing environmental protection [12][13]. - By 2024, the region has seen a stable GDP growth rate while improving water quality, showcasing a successful model of balancing economic development with ecological sustainability [14].