西安建筑科技大学学报(自然科学版)

基于多源数据的西安都市圈空间范围识别

范晓鹏¹,庞鹏飞²

(1.西安建筑科技大学建筑学院,陕西西安 710055; 2.西安建筑科技大学陕西省新型城镇化和人居环境研究院,陕西西安 710055)

Spatial range recognition of the Xi'an metropolitan area based on multi-source data

FAN Xiaopeng¹, PANG Pengfei²

(1.School of Architecture, Xi'an Univ. of Arch. & Tech., Xi'an 710055,China; 2.Shaanxi Institute of New Urbanization and Human Settlements, Xi'an Univ. of Arch. & Tech.,Xi'an 710055,China)

Keywords：spatial scope; Xi'an metropolitan area; multi-source data

DOI: 10.15986/j.1006-7930.2021.02.015

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伴随着西安城市服务辐射功能的不断加强,周边咸阳、渭南、铜川的相关区县已与西安形成紧密的经济、人口联系.本文从交通等时圈、城市吸引力、城镇人口密度、历史文化资源密度等4个角度出发,运用遥感(RS)、地理信息(GIS)、导航、人口经济统计等多源数据,采用多维定量计算的方法,考虑都市圈的发展能级、内部联系及空间集聚特征,以区县为单元进行测算,确定西安都市圈核心区、综合界定的西安都市圈空间范围.通过对西安都市圈空间特征提取与规律挖掘,首先运用交通等时圈法划定西安都市圈空间分析范围,其次通过城市引力模型初步定量测算西安都市圈核心圈层和扩展圈层,用经济社会数据计算研究区内各区县的综合实力,结合城市引力模型计算核心城区的吸引力范围,最后计算各区县的人口密度和历史文化资源密度,辅助调整西安都市圈核心圈层范围.结果表明基于多源数据源综合界定的西安都市圈空间范围更加具有合理性和科学性.

With the continuous enhancement of Xi'an's urban service radiation function, the surrounding districts and counties of Xianyang, Weinan, and Tongchuan have formed close economic and population ties with Xi'an. This paper starts from the three perspectives of traffic isochronous circle, urban attractiveness and urban population density, using remote sensing(RS), geographic information(GIS), navigation, demographic economic statistics and other multi-source data.With multi-dimensional quantitative calculation methods to consider the development level, internal connections and spatial agglomeration characteristics of the metropolitan area and with districts and counties as calculation unit, the paper determines the core area of the Xi'an metropolitan area and the comprehensively defined spatial scope of the Xi'an metropolitan area. Through the extraction of the spatial characteristics and the rule generaliztion of the Xi'an metropolitan area, firstly, the traffic isochronous circle method is used to delimit the spatial analysis scope of the Xi'an metropolitan area. The data is used to calculate the comprehensive strength of the districts and counties in the study area, combined with the urban gravity model to calculate the attractiveness of the core urban area, and finally the population density of each district and county is calculated to assist in adjusting the core area of the Xi'an metropolitan area. The results show that the spatial scope of the Xi'an metropolitan area comprehensively defined on multi-source data sources is more reasonable and scientific.

引言
1 研究方法与数据来源
2 基于“1小时”等时圈的研究区域划定
3 基于经济社会数据的都市圈圈层识别
4 结论与讨论

表1 都市圈空间范围划定的常用方法分类与解析<br/>Tab.1 Classification and analysis of common methods for delimitation of metropolitan area

表1 都市圈空间范围划定的常用方法分类与解析
Tab.1 Classification and analysis of common methods for delimitation of metropolitan area

图1 西安市及周边区县Landsat ETM/OLI 8影像图<br/>Fig.1 Landsat ETM/OLI 8 image map of Xi'an and surrounding districts and counties

图1 西安市及周边区县Landsat ETM/OLI 8影像图
Fig.1 Landsat ETM/OLI 8 image map of Xi'an and surrounding districts and counties

图2 出行基点选取图<br/>Fig.2 Selection of travel base point

图2 出行基点选取图
Fig.2 Selection of travel base point

图3 常规交通1小时出行覆盖图<br/>Fig.3 One-hour travel coverage map of conventional traffic

图3 常规交通1小时出行覆盖图
Fig.3 One-hour travel coverage map of conventional traffic

表2 各基点工作日等时圈分布图<br/>Tab.2 Distribution map of the isochronous circle of working days at each base point

表2 各基点工作日等时圈分布图
Tab.2 Distribution map of the isochronous circle of working days at each base point

图4 西安都市圈研究区域<br/>Fig.4 Xi'an Metropolitan Area Research Area

图4 西安都市圈研究区域
Fig.4 Xi'an Metropolitan Area Research Area

表3 区县综合实力评价指标体系表<br/>Tab.3 Comprehensive strength evaluation index system of districts and counties

表3 区县综合实力评价指标体系表
Tab.3 Comprehensive strength evaluation index system of districts and counties

表4 区县综合实力指数表<br/>Tab.4 Comprehensive strength index of districts and counties

表4 区县综合实力指数表
Tab.4 Comprehensive strength index of districts and counties

表5 通勤距离修正权数α和经济落差修正权数β<br/>Tab.5 Commute distance correction weight α and economic gap correction weight β

表5 通勤距离修正权数α和经济落差修正权数β
Tab.5 Commute distance correction weight α and economic gap correction weight β

表6 经济距离E、引力T、场强S计算结果表<br/>Tab.6 E、T、S calculation results table

表6 经济距离E、引力T、场强S计算结果表
Tab.6 E、T、S calculation results table

图5 西安都市圈圈层初步识别<br/>Fig.5 Preliminary identification of Xi'an Metropolitan Circle

图5 西安都市圈圈层初步识别
Fig.5 Preliminary identification of Xi'an Metropolitan Circle

表7 各区县圈层识别表<br/>Tab.7 Identification table of each district and county circle

表7 各区县圈层识别表
Tab.7 Identification table of each district and county circle

表8 西安都市圈各区县城镇人口密度表<br/>Tab.8 Urban Population Density of Districts and Counties in Xi'an Metropolitan Area

表8 西安都市圈各区县城镇人口密度表
Tab.8 Urban Population Density of Districts and Counties in Xi'an Metropolitan Area

图6 西安都市圈各区县城镇人口密度图<br/>Fig.6 Urban population density map of various districts and counties in the Xi'an metropolitan area

图6 西安都市圈各区县城镇人口密度图
Fig.6 Urban population density map of various districts and counties in the Xi'an metropolitan area

图7 西安都市圈历史文化资源分布图<br/>Fig.7 Distribution of historical and cultural resources in Xi'an metropolitan area

图7 西安都市圈历史文化资源分布图
Fig.7 Distribution of historical and cultural resources in Xi'an metropolitan area

表9 西安都市圈各类历史文化资源的价值位序与价值得分汇总表<br/>Tab.9 value order and value score summary of various historical and cultural resources in Xi'an metropolitan area

表9 西安都市圈各类历史文化资源的价值位序与价值得分汇总表
Tab.9 value order and value score summary of various historical and cultural resources in Xi'an metropolitan area

图8 西安都市圈城镇历史文化资源核密度分布图<br/>Fig.8 Core density distribution of urban historical and cultural resources in Xi'an metropolitan area

图8 西安都市圈城镇历史文化资源核密度分布图
Fig.8 Core density distribution of urban historical and cultural resources in Xi'an metropolitan area

图9 西安都市圈圈层划定<br/>Fig.9 Delineation of Xi'an Metropolitan Circle

图9 西安都市圈圈层划定
Fig.9 Delineation of Xi'an Metropolitan Circle

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期刊信息

西安建筑科技大学学报(自然科学版)
（1957年创刊双月刊）

主管单位：陕西省教育厅

主办单位：西安建筑科技大学

主　　编：刘加平（院士）

副主编：史庆轩（常务）张引科张小龙

国内刊号：CN61-1295/TU

I S S N：1006-7930

地　　址：西安市雁塔路中段13号

国内发行：西安建筑科技大学学报编辑部

国外发行：中国出版对外贸易总公司

编辑出版：西安建筑科技大学学报编辑部

备注

引言

1 研究方法与数据来源

2 基于“1小时”等时圈的研究区域划定

3 基于经济社会数据的都市圈圈层识别

4 结论与讨论

期刊信息