采取系列防治措施后北京平原区的地面沉降发展趋势如何变化尚待深入分析。基于2017—2022年Sentinel-1A影像数据，采用PS-InSAR技术评估北京平原区地面沉降现状，利用地理探测器分析影响地面沉降的主要影响因素及其交互作用。结果表明：北京平原区地面沉降分布不均匀，最大沉降速率达到90 mm/a，非漏斗区的沉降速率自2020—2021年表现出一定程度的减缓趋势，漏斗区的沉降速率的减缓趋势则较不明显。地面沉降的主要影响因素首先是地下水，其次是可压缩层厚度。所有影响因素交互作用后均表现为因子增强关系，其中地下水与地铁交互作用对地面沉降的影响最为显著，反映出地下水开采和城市建设共同驱动北京平原区的地面沉降。研究结果可为北京平原区地面沉降的全面评估、准确预测与综合防治提供科学依据。

Further analysis is needed to comprehend how the trend of land subsidence in the Beijing plain area evolves following the implementation of a series of prevention and control measures. Based on the Sentinel-1A image data from 2017 to 2022, the PS-InSAR technique was employed to assess the current situation of land subsidence in the plain area of Beijing, and the geographical detector was utilized to analyze the main influencing factors of land subsidence and their interaction effects. The findings reveal the following: The main conclusions were as follows. The distribution of land subsidence in Beijing plain is uneven, and the maximum subsidence rate reaches 90 mm/a. The subsidence rate of non-funnel area shows a certain degree of slowing trend from 2020 to 2021, while the slowing trend of subsidence rate in funnel area is not obvious. Groundwater as the primary influencing factor of land subsidence, with the thickness of the compressible layer closely following. The interaction among all influencing factors demonstrates a factor enhancement relationship, with the interaction between groundwater and subway infrastructure exerting the most significant impact on land subsidence. This highlights that groundwater and urban construction jointly propel land subsidence in the Beijing plain area. These research findings provide a scientific foundation for the comprehensive assessment, precise prediction, and integrated prevention and control of land subsidence in the Beijing plain.