【摘要】 本研究基于经济-社会-环境(Economy-Society-Environment, EES)模型，构建了包含15项指标的土地生态安全评价体系，综合运用熵权法、综合指数法与自然断点法，对苏州市2013-2023年土地生态安全的时空演化特征进行实证分析。结果表明：(1)时间上，苏州市土地生态安全水平总体呈稳步上升趋势，2016-2017年为关键跃升期，但2023年部分区域出现回调，改善进程具有复杂性与波动性；(2)空间上，形成“核心高、外围低”的基本格局，并逐步演变为“核心引领、东部改善快于西部”的分异态势，区域间极化效应加剧；(3)空间自相关分析显示，全市土地生态安全未形成显著的全局空间集聚模式，其分布更趋近于随机或受局部因素主导。本研究可为高强度开发城市的生态安全调控与空间治理提供案例借鉴。更多还原

【Abstract】 Based on the economy-society-environment(EES) framework, this study constructed a land ecological security evaluation system comprising 15 indicators. By comprehensively applying the entropy weight method, comprehensive index method, and natural breaks classification method, an empirical analysis was conducted on the spatiotemporal evolution characteristics of land ecological security in Suzhou City from 2013 to 2023. The results indicate that:(1)temporally, the overall land ecological security level in Suzhou City showed a steady upward trend, with 2016-2017 being a critical leap period. However, a decline was observed in some areas in 2023, indicating the complexity and volatility of the improvement process;(2)spatially, a basic pattern of "high in the core, low in the periphery" was formed, which gradually evolved into a differentiated situation characterized by "core leadership, with faster improvement in the east than in the west", accompanied by an intensifying polarization effect among regions;(3)spatial autocorrelation analysis revealed no significant global spatial aggregation patterns in the city’s land ecological security; its distribution is closer to random or dominated by local factors. This study can provide a reference for the ecological security regulation and spatial governance of highly developed cities.更多还原