【摘要】 随着区域一体化进程的加快,中国城市群快速地发展起来,城市群城际间的人口流动研究得到了国内外学者的关注。城市群空间结构的研究以地理实体空间分析为主,城际人口流动的研究多使用传统统计数据,而将大数据运用于城市群空间结构及城际人口流动尚处于起步阶段。本研究基于新型的新浪微博用户签到的地理位置数据,研究成渝城市群的空间结构特征,并结合传统的社会经济统计数据对该区域人口流动的影响因素进行分析。研究发现:(1)微博签到数据进一步解释了成渝城市群呈现出"双核多中心"的组团特征,成都市和重庆主城构成了"双核";(2)微博人口流动的方向会受到行政区划的影响,微博人口流动的强度呈现出一定的等级差异;(3)微博人口流动的强度与方向同社会经济发展水平呈现出相对一致性,即地区生产总值越高、人口规模越大或交通联系强度越强,则人口流动越强烈。更多还原

【Abstract】 With the rapid development of regional integration,nowadays the regional inter-city migration gets the more attention of the scholars at home and abroad.Micro-blog,as one of the most popular application in China,has become a hotspot of research in areas such as sociology and computer.Check-in,as one of Microblog’s functions,can reflect the flow of inter-city population in real time.We used the crawler program to collect the research samples in the Chengdu-Chongqing urban agglomeration in January 2014.The information includes the Micro-blog’s unique ID number,the grid coordinates of Micro-blog sending place,and the city code of the registered place,etc.By running this program,a total of 804204 valid Micro-blog check-in data weare obtained from the Chengdu-Chongqing urban agglomeration.Based on Micro-blog checking areas,this study analyzeds the spatial structure of the Chengdu-Chongqing urban agglomeration.And Wwe combined the micro-blog data with the traditional socioeconomic data,in order to analyze the impact factors of the regional migration.The results indicates that the spatial structure of micro-blog shows the characteristics of "many centers of dual-core" group in this area.There are only two cities whose micro-blog flows are more than 100,000.They are Chengdu and Chongqing,forming athe"dual-core".The direction of Micro-blog flow is affected by administrative division,and the intensity of Micro-blog flow presents a certain grade difference.The network shows an obvious hierarchy,and it closely correlatesnnects with the actual social-economic area closely,such as GDP,population size and the strength of traffic connection.For Chengdu and Chongqing,its GDP ranksed first and second,1,2 respectively,with athe population size all of greater than 7.59 million and both as a regional transport hubs,it makes their micro-blogWeibo flows areintensity in ranked 1 st and,2 nd,places respectively.Lastly,there are still some differences between Micro-blog’s space and the actual geographic space inof Chengdu-Chongqing urban agglomeration.In the background of the national Yangtze River Economic Belt and China’s new urbanization,we put the network information into the geographical space.Actually In this paper we discovered the spatial network characteristics of Chengdu-Chongqing urban agglomeration,and then this paper pointeds out the influence of socioeconomic factors on Micro-blog cyberspace flow.Of course,there may still be other factors behind Micro-blog’s cyberspace,which need to be explored and analyzed in the future.更多还原