Core Insights - The "Jianjiang Weir" has been recognized as a significant landmark in global water conservancy, marking its inclusion in the World Irrigation Heritage List as the fourth site in Sichuan [3][4] - The event highlighted the importance of the Jianjiang Weir's ecological wisdom and sustainable utilization, showcasing a Chinese solution for contemporary ecological water management [3][5] Group 1: Heritage Recognition - The unveiling of the "Jianjiang Weir World Irrigation Engineering Heritage" plaque signifies its global recognition [3] - The Jianjiang Weir is the only dual water source irrigation system in China to be included in the World Irrigation Heritage List [5] Group 2: Research and Development - The establishment of the "Jianjiang Weir Research Station" under the National Cultural Heritage Administration indicates a new phase for the protection and research of this heritage [4] - Future research will focus on water resources, ecology, and sediment structure to enhance the utilization of the Jianjiang Weir [5] Group 3: Cultural and Historical Significance - The Jianjiang Weir embodies ancient wisdom in water management, having been constructed under the guidance of the historical figure Wen Weng during the Western Han Dynasty [6] - The integration of cultural and historical values with water management is emphasized, with plans to promote both aspects through innovative measures [6][8] Group 4: Tourism and Community Engagement - The Jianjiang Small Train project serves as a model for the active utilization of the Jianjiang Weir, enhancing tourism experiences and extending the cultural tourism industry chain [7] - Collaborative agreements with local educational institutions aim to develop cultural research bases and thematic educational activities centered around the Jianjiang Weir [7]

Core Points - The 76th International Executive Council meeting of the International Commission on Irrigation and Drainage announced the inclusion of four Chinese irrigation projects in the World Irrigation Heritage List for 2025, bringing China's total to 42 [1][2] Group 1: Selected Projects - The Yunnan Honghe Hani Rice Terraces, covering an irrigation area of 56,100 acres, exemplifies the Hani people's adaptation to nature and integrates their culture and irrigation management [1] - The Chishan Lake Irrigation Project in Jiangsu, with a history of over 1,700 years, irrigates 77,000 acres and effectively addresses flooding and drought issues in low-lying areas [1] - The Qianjiang Weir in Sichuan, established during the Western Han Dynasty, represents advanced water resource management and supports irrigation during droughts through over 300 self-flowing springs [1] - The Yongding River Ancient Canal Irrigation Project in Beijing irrigates approximately 2,000 acres of farmland and provides water for around 20,000 acres of orchards and ecological areas [2] Group 2: Heritage List Purpose - The World Irrigation Heritage List, established in 2014, aims to document the development of global irrigation civilization, promote the protection of irrigation heritage, and provide historical insights for sustainable irrigation development [2]