Core Points - The Ministry of Natural Resources reports that nearly 300 cities in China have completed the construction of 3D building models, which play a significant role in urban renewal, public service, and empowering the digital economy [1][2] Group 1: 3D Modeling and Technology - China has achieved autonomous control over core technologies such as real-world 3D data collection and spatial identity coding, establishing a 3D technology system characterized by intelligent modeling, integrated management, and knowledge-based applications [2][3] - By the end of 2025, the goal is to establish a preliminary version of "Real Scene 3D China," with nearly 300 cities having produced 3D models of buildings [2][3] Group 2: Applications in Urban Management - The implementation of 3D technology in Fuzhou has empowered over 60 fields, particularly in urban management, allowing for comprehensive perception, dynamic monitoring, and intelligent analysis of urban spatial information [4][5] - Fuzhou's smart management platform utilizes real-time 3D maps to provide detailed insights into urban infrastructure, including streetlights and manholes, enhancing operational efficiency [4][5] Group 3: Water Management and Emergency Response - The integration of 3D models in Fuzhou's water system management allows for real-time monitoring and simulation of water levels, significantly improving flood response times and water quality management [6][7] - The scientific scheduling system for water management has led to an 88% peak flood reduction rate and a 50% decrease in average drainage response time, achieving a 98% compliance rate for river water quality [7]

Group 1 - The core viewpoint of the news is the significant progress made in the construction of a three-dimensional digital China, driven by the Ministry of Natural Resources through various stages of pilot exploration, localized application, comprehensive deployment, and accelerated empowerment [1][2] - The supply of data elements has been continuously enhanced, with 7.35 million square kilometers of digital elevation model data produced, 7.9 million square kilometers of basic geographic entity data completed, and 21 versions of orthophoto data with sub-meter/2-meter resolution covering the entire land territory of the country [1] - A total of 310 cities at the prefecture level and above have initiated three-dimensional city construction, resulting in approximately 110,000 square kilometers of urban three-dimensional model data produced [1] Group 2 - The technical standards and systems have been increasingly refined, comprising a technical standard system that includes technical outlines, 25 technical documents, and several national and industry standards, covering the entire construction process from design to quality control [2] - The application of three-dimensional digital China is expanding, with over 100 application scenarios across 22 categories, including disaster prevention, smart security, cultural heritage protection, land spatial planning, and online tourism [2] - The Ministry of Natural Resources plans to accelerate construction, focus on application, and build an ecosystem to support the development of high-quality geographic spatial data sets, aiding in natural resource management and land spatial planning [2]