绿色发展下战略性金属资源效率全生命周期评估与提升路径研究

战略性金属是保障国民经济持续稳定发展的重要物质基础，新时代我国面临绿色发展、国家安全体系构建以及生态文明建设的重大挑战，这对战略性金属资源效率提升提出新的要求，如何准确完整评估战略性金属资源效率并科学设计提升路径，已成为当今亟须解决的一个重大问题。为此，项目基于全生命周期视角，构建耦合资源-经济-环境的战略性金属资源效率全生命周期评估框架，从资源使用效率与碳排放效率两个层面对战略性金属资源效率进行全方位、全过程评估，识别资源效率提升的关键节点；集成物质流模型与系统动力学模型，构建战略性金属资源效率提升的REE-MF系统仿真模型，并借助路径设计与情景模拟，识别资源效率提升的最优路径。在此基础上，有针对性地提出提升我国战略性金属资源效率的政策建议。研究成果将拓展和深化资源效率评估及安全管理的理论和方法，为推动新时代绿色发展及生态文明建设，实现战略性金属资源安全与生态安全提供科学基础与政策指导。

Strategic metals are an indispensable material foundation for the sustainable and stable development of the national economy. In the new era, China faces major challenges in green development, the construction of a national security system and ecological civilization. This raises new requirements for improving the efficiency of strategic metal resources. There is a major issue that must be urgently addressed in the context of ecological civilization construction. That is how to accurately and completely evaluate the resources efficiency of strategic metals and scientifically design improvement paths. To this end, the project builds a resource efficiency full life cycle assessment framework of strategic metals that integrates resource–economy- environment based on a full life cycle perspective. We conduct a comprehensive and full-process assessment of strategic metal resource efficiency from two levels of resource use efficiency and carbon emission efficiency, to identify key points for resource efficiency improvement. This project integrates the material flow model and system dynamics model to build a REE-MF system simulation model for improving the efficiency of strategic metal resources. We identify the optimal path for improving resource efficiency with the help of path design and scenario simulation. Based on above, we put forward targeted policy recommendations to improve the efficiency of China's strategic metal resources. Our research results will expand and deepen the theory and methods of resource efficiency assessment and security management. And we make contribution to providing scientific basis and policy guidance for promoting the green development and ecological civilization, as well as achieving strategic metal resource security and ecological security in the new era.