北京市典型地区地面沉降空间格局分析
发布时间：2018-10-25 20:56
【摘要】：针对区域地面沉降空间演化格局分析较少问题,选用小基线雷达干涉测量技术(SBAS-InSAR)获取了北京典型地区的地面沉降数据,并利用全局Moran′s I和局部Moran′s I指数对研究区地面沉降格局特征进行分析。结果表明,研究区地面沉降速率最大值为-110mm/a,中部、东南部沉降严重,其他地区相对轻微;该区域地面沉降全局空间自相关十分显著,全局Moran′s I指数达到了0.8(p=0.001),局部空间格局包括3个亚区,分别是高集聚区、低集聚区以及非相关区;热点分析结果表明地面沉降存在过渡带,过渡带不仅是地面沉降的未来发展方向,同时还存在不均匀地面沉降,是未来地面沉降防治的重点关注区域。
[Abstract]:In view of the few problems in analyzing the spatial evolution pattern of regional land subsidence, small baseline radar interferometry (SBAS-InSAR) is used to obtain the ground subsidence data in typical areas of Beijing. The global Moran's I and local Moran's I indices are used to analyze the characteristics of land subsidence pattern in the study area. The results show that the maximum land subsidence rate is -110 mm / a in the study area. The global spatial autocorrelation of land subsidence in this area is very significant, the global Moran's I index is 0. 8 (p0. 001), and the local spatial pattern includes three subregions, namely, high concentration area, low concentration area and non related area. The results of hot spot analysis show that there is a transitional zone, which is not only the future development direction of land subsidence, but also exists uneven land subsidence, which is the key area of land subsidence prevention and control in the future.
【作者单位】： 三维信息获取与应用教育部重点实验室;城市环境过程与数字模拟国家重点实验室培育基地;首都师范大学资源环境与旅游学院;北京育英学校;
【基金】：国家自然科学基金重点项目(41130744/D0107);国家自然科学基金面上项目(41171335/D010702);国家自然科学基金(D010702/4140010982)
【分类号】：P642.26
，
本文编号：2294817
[Abstract]:In view of the few problems in analyzing the spatial evolution pattern of regional land subsidence, small baseline radar interferometry (SBAS-InSAR) is used to obtain the ground subsidence data in typical areas of Beijing. The global Moran's I and local Moran's I indices are used to analyze the characteristics of land subsidence pattern in the study area. The results show that the maximum land subsidence rate is -110 mm / a in the study area. The global spatial autocorrelation of land subsidence in this area is very significant, the global Moran's I index is 0. 8 (p0. 001), and the local spatial pattern includes three subregions, namely, high concentration area, low concentration area and non related area. The results of hot spot analysis show that there is a transitional zone, which is not only the future development direction of land subsidence, but also exists uneven land subsidence, which is the key area of land subsidence prevention and control in the future.
【作者单位】： 三维信息获取与应用教育部重点实验室;城市环境过程与数字模拟国家重点实验室培育基地;首都师范大学资源环境与旅游学院;北京育英学校;
【基金】：国家自然科学基金重点项目(41130744/D0107);国家自然科学基金面上项目(41171335/D010702);国家自然科学基金(D010702/4140010982)
【分类号】：P642.26
，
本文编号：2294817
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