【摘要】：針對(duì)區(qū)域地面沉降空間演化格局分析較少問(wèn)題,選用小基線雷達(dá)干涉測(cè)量技術(shù)(SBAS-InSAR)獲取了北京典型地區(qū)的地面沉降數(shù)據(jù),并利用全局Moran′s I和局部Moran′s I指數(shù)對(duì)研究區(qū)地面沉降格局特征進(jìn)行分析。結(jié)果表明,研究區(qū)地面沉降速率最大值為-110mm/a,中部、東南部沉降嚴(yán)重,其他地區(qū)相對(duì)輕微;該區(qū)域地面沉降全局空間自相關(guān)十分顯著,全局Moran′s I指數(shù)達(dá)到了0.8(p=0.001),局部空間格局包括3個(gè)亞區(qū),分別是高集聚區(qū)、低集聚區(qū)以及非相關(guān)區(qū);熱點(diǎn)分析結(jié)果表明地面沉降存在過(guò)渡帶,過(guò)渡帶不僅是地面沉降的未來(lái)發(fā)展方向,同時(shí)還存在不均勻地面沉降,是未來(lái)地面沉降防治的重點(diǎn)關(guān)注區(qū)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.
【作者單位】： 三維信息獲取與應(yīng)用教育部重點(diǎn)實(shí)驗(yàn)室;城市環(huán)境過(guò)程與數(shù)字模擬國(guó)家重點(diǎn)實(shí)驗(yàn)室培育基地;首都師范大學(xué)資源環(huán)境與旅游學(xué)院;北京育英學(xué)校;
【基金】：國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(41130744/D0107);國(guó)家自然科學(xué)基金面上項(xiàng)目(41171335/D010702);國(guó)家自然科學(xué)基金(D010702/4140010982)
【分類(lèi)號(hào)】：P642.26
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本文編號(hào)：2294817