發(fā)布時(shí)間：2018-08-01 13:51

【摘要】：2016年4月發(fā)布的《成渝城市群發(fā)展規(guī)劃》首次正式確定了成渝城市群的內(nèi)涵和具體邊界,重建成渝城市群的形成過(guò)程,有利于把握未來(lái)發(fā)展趨勢(shì),并合理優(yōu)化與調(diào)整其發(fā)展過(guò)程。在重建技術(shù)方面,對(duì)DMSP/OLS夜間燈光數(shù)據(jù)傳統(tǒng)的不變目標(biāo)區(qū)域校正法加以改進(jìn),將成渝城市群2013年城市市區(qū)范圍內(nèi)的全部像元加入校正模型的擬合中,設(shè)計(jì)了統(tǒng)計(jì)數(shù)據(jù)的校正規(guī)則,再通過(guò)二分比較法較好地恢復(fù)了成渝城市群內(nèi)各城市建成區(qū)的時(shí)序空間信息。提取面積與統(tǒng)計(jì)面積總體平均相對(duì)誤差為-0.38%,利用高分辨率Google Earth圖像驗(yàn)證的建成區(qū)提取準(zhǔn)確率達(dá)到98.29%,相比其他研究結(jié)果,經(jīng)方法改進(jìn)后的提取結(jié)果精度高且穩(wěn)定。在結(jié)果分析方面,基于提取結(jié)果展開(kāi)對(duì)城市群建成區(qū)重心轉(zhuǎn)移過(guò)程與城市聚合過(guò)程的深層次研究,剖析了城市群的內(nèi)部格局與時(shí)空變化特征。分析表明,成渝城市群的聚合情況與《成渝城市群發(fā)展規(guī)劃》高度吻合,城市群已進(jìn)入快速發(fā)育階段,隨著區(qū)域差異的持續(xù)擴(kuò)大,成都、重慶都市圈的核心地位逐漸形成,而重慶的發(fā)展態(tài)勢(shì)稍好。
[Abstract]:The "Chengdu-Chongqing Urban agglomeration Development Plan", issued in April 2016, formally defines the connotation and concrete boundary of Chengdu-Chongqing urban agglomeration for the first time, and reconstructs the forming process of Chengdu-Chongqing urban agglomeration, which is helpful to grasp the future development trend. And reasonable optimization and adjustment of its development process. In the aspect of reconstruction technology, the traditional invariant target area correction method of DMSP/OLS night lighting data is improved, and all the pixels in the urban area of Chengdu-Chongqing urban agglomeration in 2013 are added to the fitting of the calibration model, and the correction rules of statistical data are designed. Furthermore, the temporal spatial information of each urban area in Chengdu-Chongqing urban agglomeration is recovered by dichotomous comparison method. The average relative error between the extracted area and the statistical area is -0.38. The accuracy of the constructed area extraction verified by the high-resolution Google Earth image is 98.29. Compared with other research results, the precision of the improved method is high and stable. In the aspect of result analysis, based on the extraction results, the paper studies the process of gravity center transfer and urban aggregation in urban agglomeration, and analyzes the internal pattern and temporal and spatial characteristics of urban agglomeration. The analysis shows that the aggregation of Chengdu-Chongqing urban agglomeration is highly consistent with the "Chengdu-Chongqing Urban agglomeration Development Plan", and the urban agglomeration has entered the stage of rapid development. With the continuous expansion of regional differences, the core position of Chengdu and Chongqing Metropolitan Circle has gradually formed. And Chongqing's development situation is slightly better.
【作者單位】： 西南大學(xué)地理科學(xué)學(xué)院;安徽大學(xué)資源與環(huán)境工程學(xué)院;
【基金】：中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金資助“耦合夜間燈光數(shù)據(jù)與元胞自動(dòng)機(jī)的城市擴(kuò)張模擬研究—以成渝城市群為例”(XDJK2017D025) 國(guó)家自然科學(xué)基金項(xiàng)目“基于遙感—過(guò)程耦合模型的巖溶石漠化植被恢復(fù)區(qū)碳收支及其時(shí)空格局特征研究”(41201436)
【分類號(hào)】：F299.27;P237
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本文編號(hào)：2157785