川流不息，京津冀携手护水

Core Viewpoint - The collaboration between Beijing and Hebei in water resource management has significantly improved the ecological environment and water quality of the Miyun Reservoir and the Guanting Reservoir, showcasing the effectiveness of joint efforts in water conservation and management [1][7][10]. Group 1: Water Resource Management - The Miyun Reservoir is crucial for Beijing's water supply, with two-thirds of its catchment area located in Hebei, highlighting the interdependence of the two regions in water resource management [2][4]. - The implementation of the "Miyun Reservoir Water Source Protection Regulations" starting December 1, 2025, aims to establish strict guidelines for water protection, enhancing the regulatory framework for water safety in the capital [4][6]. - Since 2018, a horizontal ecological compensation agreement has been in place, allowing for coordinated funding and efforts between Beijing and Hebei to support over 180 water conservation projects [5][6]. Group 2: Ecological Improvement - The ecological environment around the Miyun Reservoir has transformed from a state of water scarcity to one of abundance, with record high water levels achieved in recent years [8][11]. - The Guanting Reservoir has also seen significant ecological improvements, with water quality upgraded from Class IV to Class III, and biodiversity increasing with the number of wild plant and bird species rising substantially [11][12]. - The collaboration has led to the Guanting Reservoir becoming an important stopover for migratory birds, indicating a successful restoration of its ecological function [10][11]. Group 3: Collaborative Efforts - The joint efforts between Beijing and Hebei have resulted in a comprehensive approach to water management, including the establishment of a unified monitoring system and joint law enforcement to protect water resources [9][10]. - The successful implementation of ecological compensation mechanisms has allowed for a more effective allocation of resources and a unified strategy for water conservation [5][6]. - The ongoing collaboration is expected to continue evolving, with discussions for a third round of compensation agreements underway to further enhance water source protection [6][8].