机构地区:[1]宁夏大学地理科学与规划学院,宁夏银川750021
出 处:《经济地理》2023年第8期73-85,共13页Economic Geography
基 金:国家自然科学基金项目(41561037、41961028)。
摘 要:鉴于企业流动关系到城市网络重塑及协同联动发展的实现,文章以光伏产业链为例,基于2010—2021年工商注册企业数据,结合链锁网络模型、社会网络分析和空间计量模型,从区域外部网络、内部网络解析黄河“几”字弯地区城市网络联系的时空动态特征及影响因素。研究发现:①黄河“几”字弯地区光伏企业投资规模显著增长,不同尺度的企业投资均呈现出产业链由下游环节主导、行业投资集中在电力生产行业的联系特征。②区域外部网络中华北、华东地区是企业流入主要来源,光伏产业链中游、下游环节均刻画出由北京及长三角地区主导的联系网络,中游环节相对脆弱,下游环节则形成西部以银川市为主导,中部由呼包鄂榆协控,东部以乌兰察布市、大同市和忻州市为中心的空间格局。③区域内部网络的中游环节也相对薄弱,联系演变主要体现在下游环节且呈现以银川市、呼和浩特市、太原市为主导的分域型空间联系结构。地区网络中心化趋势不断加强,演变为由银川市、呼和浩特市、太原市共同主导内部网络输出联系。④关于地区网络联系影响机制,电力行业协同发展、地区减碳发展战略、数字经济发展氛围表现出正向作用并具有较好空间溢出效应,但产业结构的调整与转型不畅给地区网络联系带来了阶段性负向作用,地区整体发展失衡更阻碍了外部、内部网络的联系强化。In view of the fact that enterprises flow is related to the remodeling of urban network and the realization of coordinated development,this paper takes the photovoltaic industry chain as an example based on the register enterprise data from 2010 to 2021,analyzes the temporal-spatial characteristics and influencing factors of urban network connections in the Ningxia-Inner Mongolia-Shaanxi-Shanxi areas of the the Yellow River from the perspectives of external and internal networks by the means of the Interlocking Network model,social network analysis and spatial econometrics model.The results of the study are as follows:1)The investment scale of photovoltaic enterprises has increased significantly in the Ningxia-Inner Mongolia-Shaanxi-Shanxi areas of the Yellow River.The enterprises investment shows the connection characteristics of industrial chain being dominated by the downstream segment and industrial investment being concentrated in the power production industry at different scales.2)Northern China and East China are the main sources of corporate inflows in the external regional network.The midstream and downstream segments of the photovoltaic industry depict a connection network dominated by Beijing and the Yangtze River Delta region.It is relatively fragile in the midstream segment,Yinchuan plays an important role in the downstream segment of the west of research area,the central region is co-controlled by Hohhot-Baotou-ordos-Yulin urban agglomeration.It takes Ulanqab,Datong and Xinzhou as the centers of spatial pattern in the eastern region.3)The internal network is relatively weak in the midstream segment,the evolution of connectivity is mainly reflected in the downstream segment,showing a subregional spatial connectivity structure dominated by Yinchuan,Hohhot and Taiyuan.The centralization trend continues to strengthen in the regional network,Yinchuan,Hohhot,and Taiyuan jointly dominate the internal network's outbound connections.4)Regarding the impact mechanisms of regional network connection,the synergi
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