This study takes Chinese literature collected from database such as China National Knowledge Infrastructure (CNKI) between 2000 and 2025 as samples. Using CiteSpace,it systematically review the evolutionary trajectory and cuttingedge trends of heritage language research among Chinese diasporas in domestic Chinese academia. A comprehensive analysis is conducted from the dimension of publication volume,academic collaboration networks, keyword co-occurrence clusters,and keyword bursts.Results show that Chinese heritage language research has evolved through three stages: theoretical introduction, empirical expansion, and focused refinement. A “single-core radiation” structure centered on Jinan University and three major author clusters have emerged, forming a fourdimensional framework: theoretical foundation, family language planning, regional practice, and cultural identity. Research frontiers are shifting from conceptual definition to inheritance effectiveness and mechanisms, increasingly integrated with international Chinese language education.The field is transitioning from quantitative expansion to quality improvement and from academic exploration to strategic application. This study identifies gaps and future directions, providing empirical evidence and theoretical support for optimizing collaboration networks, promoting heritage language transmission among overseas Chinese communities, and strengthening disciplinary construction. It also offers insights for building a global Chinese language ecosystem.

为破解应急管理能力评价领域研究碎片化、分散化难题，明晰其知识结构与发展规 律，本文以2002—2025年中国知网（CNKI）351篇中文文献及Web of Science（WOS）76篇 英文文献为研究样本，运用CiteSpace工具开展知识图谱分析。研究表明，文献产出层 面，中国发文量呈阶段性爆发增长（2023年达峰值41篇），核心作者以吴浩（24篇）、武 潭（20篇）为代表，但学术合作网络整体分散；国际发文量规模较小，却形成关联更紧密 的关键词共现网络（密度0.0226，高于国内0.0099）。研究热点上，中国构建“理论-体 系-方法-多场景”成熟研究网络，聚焦安全生产、化工园区等细分场景，及熵权法、云模 型等多元量化方法创新；国际侧重评价模型构建、应急疏散场景研究，以层次分析法（AH P）等经典方法应用为核心。未来该领域将向智能化技术深度融合、场景精准拓展、多主 体协同治理升级方向演进。本文为领域研究方向优化与应急管理能力评价政策制定提供数据支撑，助力应急管理体系现代化建设