首都圈区域空间就业分布结构分析

基于第二次全国经济普查分区县18个行业的就业人口数据,以局部空间自相关G系数为衡量标准,对首都圈120个地理单元的就业热点即集聚中心进行判定,分析首都圈的区域空间结构。运用SOFM神经网络聚类对区域内分区县的行业门类进行聚类,探讨首都圈内部各城市职能分工以及首都圈经济结构及空间组合特征。研究表明:首都圈呈现"‘一主一次’双核、一廊、七中心"的区域空间结构特征;北京和天津在区域内具有综合性服务职能,河北七地市的中心城区职能各有侧重,但都具有地区性中心的职能。

Analysis to the employment distribution structure in Capital Metropolitan Region

Based on the second national economic census employments data of sub-counties by 18 sectors,this article uses the spatial autocorrelation coefficient of G statistic calculated in ArcGIS to analyzes the economic structure of 120 counties of the Capital Metropolitan Region.In order to get the cities’ different functions,it clusters on the county level through the SOFM neural network.The results show that the spatial structure presented in the Capital Metropolitan Region takes on a feature of "dual-core of primary and secondary.one corridor and seven centers ".Beijing and Tianjin in the region with comprehensive service functions,and seven cities in Hebei Province outside the dual-core not only take distinctive functions of the central city,but also has a regional integrated service functions.