记者从中国南水北调集团有限公司获悉：12月1日，南水北调中线一期工程启动2025至2026年度冰期输 水工作，工程运行管理正式进入冰期输水阶段，预计到2026年2月底结束。 （文章来源：人民日报） 该工程各级运行管理单位充分发挥数字孪生南水北调中线系统预报、预警、预演、预案作用，提升监测 感知能力。制定详细调度方案，优化动态调度，提前布设并调试拦冰、融冰、扰冰、排冰设备，对相关 建筑物采取保温措施，提升防御能力。做好各项应急准备，加强巡查值守，发挥多层次抢险救灾队伍作 用，开展冰冻灾害演练，切实筑牢安全防线。 目前，该工程向京津冀豫四省市供水730亿立方米，近1.18亿人受益，工程综合效益不断提升。 ...

Core Viewpoint - The South-to-North Water Diversion Project has significantly improved water quality and availability in northern China, enhancing the quality of life for over 114 million people and promoting ecological and economic development [1][2][3]. Group 1: Water Quality and Environmental Protection - Since the commencement of the South-to-North Water Diversion Project, the Danjiangkou Reservoir has maintained water quality at Class II or above, ensuring safe drinking water for the population [1]. - Comprehensive protective measures have been implemented to prevent pollution, including monitoring and volunteer initiatives aimed at promoting water conservation [1]. - The ecological environment along the water diversion route has improved significantly, with sediment reduction benefits exceeding 80% in certain areas [2]. Group 2: Economic Development and Regional Growth - The project has catalyzed regional economic growth by optimizing industrial structures and promoting green manufacturing practices, leading to a fivefold increase in GDP since 2003 despite only a 46% increase in total water usage [3]. - The principle of "first save water, then divert water" has driven industries along the route to adapt and innovate, fostering the development of new industries and enhancing traditional sectors [3]. Group 3: Social Impact and Community Benefits - Over 742 billion cubic meters of water have been diverted since the project's initiation, with over 108 billion cubic meters used for ecological replenishment, directly benefiting more than 114 million people [1]. - The project has transformed the water consumption experience from scarcity to abundance, improving the overall quality of water available to communities [1].