Core Insights - The National Water Resources Technology Terminology Committee has identified five key research hotspots in water resources technology for 2025, including "National Water Network," "Smart Dams," "Digital Twin Water Resources System," "Drought-Flood Rapid Transition," and "Happy Rivers and Lakes" [1][2] Group 1: Research Hotspots - "National Water Network" refers to a comprehensive system that integrates water resource optimization, flood disaster reduction, and ecosystem protection, based on natural rivers and lakes [1] - "Smart Dams" are the result of integrating new information technologies with traditional dam engineering, focusing on IoT, big data, AI, and digital twin technologies for enhanced management throughout the dam's lifecycle [1] - "Digital Twin Water Resources System" involves digital mapping and intelligent simulation of physical water resources, utilizing spatial data and mathematical models for real-time interaction and optimization [2] Group 2: Extreme Weather Events - "Drought-Flood Rapid Transition" describes the extreme event where a region experiences worsening drought conditions followed by sudden heavy rainfall, necessitating immediate flood prevention and disaster response [2] Group 3: Ecological and Community Well-being - "Happy Rivers and Lakes" emphasizes maintaining the ecological stability of river and lake systems while ensuring community safety and promoting high-quality development, leading to a harmonious relationship between people and water [2] Group 4: Institutional Framework - The National Science and Technology Terminology Committee, authorized by the State Council, is responsible for the authoritative approval and publication of scientific terminology, with the National Water Resources Technology Terminology Committee focusing specifically on water resources terminology [2]

Core Insights - The National Committee for the Standardization of Scientific and Technological Terms has released five key frontier hot topics in water conservancy science and technology for 2025, reflecting current trends and future directions in the field [1][2]. Group 1: Key Hot Topics - "National Water Network" integrates water resource optimization, flood disaster reduction, and ecosystem protection, utilizing natural rivers and lakes as a foundation [2]. - "Smart Dams" combine new information technologies with traditional dam engineering, focusing on IoT, big data, AI, and digital twin technologies for comprehensive lifecycle management [2]. - "Digital Twin Water Conservancy System" involves digital mapping and intelligent simulation of physical water conservancy elements, enabling real-time interaction and optimization [2]. - "Drought-Flood Rapid Transition" describes extreme weather events where a region experiences severe drought followed by sudden heavy rainfall, necessitating emergency flood response [2]. - "Happy Rivers and Lakes" emphasizes maintaining ecological stability and promoting high-quality development in river and lake systems, ensuring safety and satisfaction for local communities [2]. Group 2: Institutional Background - The National Committee for the Standardization of Scientific and Technological Terms is an authoritative body authorized by the State Council, responsible for the approval and publication of scientific and technological terms [3]. - The National Water Conservancy Technology Terminology Committee, guided by the Ministry of Water Resources, aims to establish a comprehensive and scientifically standardized terminology system to support innovation and development in water conservancy [3].

Core Viewpoint - The "Yin Da Ji Min" project has been officially launched to address the water scarcity issues in the Chengdu Plain Economic Zone by diverting water from the Dadu River, enhancing the water supply for agriculture and urban areas in the region [2][3]. Group 1: Project Overview - The "Yin Da Ji Min" project will take 8 years to complete and will utilize natural elevation to transport water over 260 kilometers through tunnels and pipelines [2]. - By 2040, the project is expected to divert 1.389 billion cubic meters of water to the Dujiangyan irrigation area, increasing to 1.523 billion cubic meters by 2050 [3]. Group 2: Impact on Water Supply - The project will serve 43 counties in 8 cities, including Chengdu, Deyang, and Mianyang, potentially benefiting 34.13 million people and increasing irrigation area by 1.79 million acres while improving 5.91 million acres [3]. - The water supply guarantee rate for urban and industrial use in the Chengdu Plain will rise from 90% to 97%, while agricultural irrigation guarantee rates will reach 80% [3]. Group 3: Historical Context - The concept for the "Yin Da Ji Min" project was proposed as early as the 1950s and has undergone decades of investigation and validation before receiving national approval for construction [3].

Core Viewpoint - The "Yin Da Ji Min" project has been officially launched to address the water scarcity issues in the Chengdu Plain Economic Zone by diverting water from the Dadu River, enhancing the water supply for agriculture and industry in the region [3][4]. Group 1: Project Overview - The "Yin Da Ji Min" project will take 8 years to complete and will utilize natural elevation to transport water through over 260 kilometers of tunnels and pipelines [3]. - By 2040, the project is expected to divert 1.389 billion cubic meters of water to the Dujiangyan irrigation area, increasing to 1.523 billion cubic meters by 2050 [4]. Group 2: Regional Water Challenges - Sichuan Province, known for its abundant water resources, faces significant spatial and temporal distribution challenges, with a "west-rich, east-poor" water resource situation [3]. - The population in the Chengdu Plain Economic Zone is projected to exceed 46 million by 2030, leading to a more severe water supply gap by 2035 [3]. Group 3: Benefits of the Project - The project will improve the water supply guarantee rate for urban and industrial use from 90% to 97%, and for agricultural irrigation to 80% [4]. - It will serve multiple functions including urban water supply, irrigation, ecological replenishment, and emergency water sources, benefiting 34.13 million people across 43 counties [4].

Core Points - The "Yin Da Ji Min" project has officially commenced construction, aimed at addressing the water scarcity issues in the Chengdu Plain Economic Circle by diverting water from the Dadu River [1][2] - The project will take 8 years to complete and will utilize a 260-kilometer system of tunnels and pipelines to transport water to the Dujiangyan irrigation area [1] - By 2040, the project is expected to supply 1.389 billion cubic meters of water, increasing to 1.523 billion cubic meters by 2050, benefiting 34.13 million people across 43 counties in the Chengdu Plain Economic Zone [2] Summary by Sections Project Overview - The "Yin Da Ji Min" project aims to create a dual water source for the Chengdu Plain by integrating water from the Dadu River with the Min River [1] - The project is a response to the increasing water scarcity in the region due to rapid economic development [1] Engineering Details - The project will involve the construction of over 260 kilometers of tunnels and pipelines, utilizing natural elevation for water flow [1] - It is designed to enhance the water supply guarantee rate for urban and industrial use from 90% to 97%, and for agricultural irrigation to 80% [2] Historical Context - The concept of the project dates back to the 1950s, undergoing decades of investigation and validation before receiving national approval [2] - The Dujiangyan irrigation system has historically provided water to the Chengdu Plain, which is now facing significant supply challenges due to population growth and uneven water distribution [1]

Core Insights - The press conference highlighted the achievements in high-quality water resource development during the "14th Five-Year Plan" period, emphasizing the construction of various water source, diversion, and irrigation projects [1] Group 1: Water Resource Development - By the end of the "14th Five-Year Plan," the national water network coverage is expected to reach 80.3% [1] - The irrigated area of arable land is projected to be 10.9 million acres [1] - The rural tap water coverage rate is anticipated to reach 96% [1] Group 2: Economic and Water Usage Efficiency - Despite significant economic growth and continuous increases in grain production, the total water usage has achieved zero growth [1] - By 2024, the water consumption per 10,000 yuan of GDP and per 10,000 yuan of industrial added value is expected to decrease by 17.7% and 23.6% respectively compared to the end of the "13th Five-Year Plan" [1] - The effective utilization coefficient of irrigation water in farmland has improved from 0.565 at the end of the "13th Five-Year Plan" to 0.58 [1]

Group 1 - The core viewpoint emphasizes the importance of water resource management and infrastructure development in China, highlighting significant investments and projects aimed at enhancing water supply and safety [1][2][4]. - The Guangdong water resource allocation project, which includes the "Yuehai Huanbei No. 5" tunneling machine, has completed 95 kilometers of tunnel excavation with a total investment of 137 billion yuan [1]. - The national water network construction has accelerated, with over 1 trillion yuan invested in water infrastructure over the past three years, and a water supply capacity exceeding 900 billion cubic meters [2]. Group 2 - The modernization of irrigation systems, such as the Qingtongxia irrigation district, has improved water delivery efficiency, resulting in increased crop yields [3]. - The government is increasing investment in over 1,000 irrigation modernization projects, with the total irrigated area reaching over 108 million acres [3]. - The construction of the Jingling Reservoir in Zhejiang is being supported by innovative financing mechanisms, including the use of a real estate investment trust for water infrastructure [5]. Group 3 - The integration of water networks with other infrastructure systems, such as electricity and transportation, is crucial for supporting industrial transformation and modernization [6][7]. - The Ministry of Water Resources is committed to implementing a comprehensive water management strategy to ensure high-quality development and water security in China [7].