面向流域防洪与生态安全的闽江下游数字孪生平台建设探索

An Exploration of Digital Twin Platform Development for the Lower Minjiang River toward Basin Flood Control and Ecological Security

摘要: 闽江下游是福州的重要水源地，近年来受河床下切影响，闽江口咸潮上溯现象日益严重，威胁多地的取水安全。数字孪生流域建设是智慧水利的重点任务，通过将物理空间进行数字化映射及智慧化模拟，可实现数字空间与物理流域同步仿真运行、虚实交互及迭代优化。在数字孪生流域建设背景下，本文以闽江下游河段为研究对象，提出了面向流域防洪与生态安全的数字孪生闽江下游的总体架构，探讨了水情监测体系建设、模型平台建设、知识平台建设及应用平台建设等数字孪生建设关键技术，为应对咸潮上溯及保障流域防洪与生态安全提供技术支撑。

Abstract: The lower reaches of the Minjiang River constitute an important water source for Fuzhou. In recent years, influenced by riverbed incision, saltwater intrusion from the Minjiang estuary has intensified, posing a growing threat to water intake safety in multiple areas. The construction of digital twin river basins is a key task in smart water conservancy. By digitally mapping physical spaces and enabling intelligent simulation, digital twins allow synchronous simulation of digital and physical river basins, virtual-real interaction, and iterative optimization. Within the context of digital twin river basin development, this study takes the lower reaches of the Minjiang River as the research object and proposes an overall architecture for a digital twin of the lower Minjiang River toward flood control and ecological security. Key technologies for digital twin construction are discussed, including hydrological monitoring systems, model platforms, knowledge platforms, and application platforms, providing technical support for addressing saltwater intrusion and ensuring flood control and ecological security in the river basin.