科技服務產(chǎn)業(yè)集聚背景下城市格局時空演變特征及趨勢研究

摘要： 科技服務業(yè)是聚集創(chuàng)新要素的核心產(chǎn)業(yè),研究科技服務業(yè)集聚背景下的城市格局特征,對國家協(xié)調(diào)創(chuàng)新城市體系建設和提升城市化水平具有重要意義?；谕度氘a(chǎn)出理論,構建科技服務產(chǎn)業(yè)集聚背景下的城市關聯(lián)網(wǎng)絡,借用社會網(wǎng)絡方法測度城市格局時空演變特征和趨勢。研究發(fā)現(xiàn):科技服務產(chǎn)業(yè)集聚過程中大多數(shù)城市圍繞少數(shù)關鍵城市形成了相對緊密的關聯(lián)網(wǎng)絡,并且集聚高地由沿海逐漸向東北、西部、中部和山東半島地區(qū)拓展;少數(shù)關鍵城市發(fā)揮著以最短路徑承載創(chuàng)新要素在城市間流通的中介作用;多數(shù)區(qū)域之間能夠通過若干個城市關聯(lián)實現(xiàn)互相連通,東北、山東半島、西南、西北和中部地區(qū)與長三角集聚中心均存在最短中介樞紐,并且集聚進程中城市的帶動作用差異逐漸擴大;凝聚子群2和3中的城市自組織能力不斷增強。最后,針對結論提出推動建立協(xié)調(diào)創(chuàng)新城市體系和提升城市化水平的建議。
As a core industry that gathers innovation factors. It is of great significance to study the urban pattern characteristics under the background of science and technology service industry agglomeration for the construction of national coordinated innovation city system. Based on the theory of input and output, this paper constructs an urban association network under the background of agglomeration of science and technology service industry, and uses social network method to measure the temporal and spatial evolution characteristics and trends of urban pattern. The study found that most cities in the process of agglomeration of science and technology services formed a relatively close network around a few key cities, and the agglomeration highlands gradually expanded from the coast to the northeast, west, central and Shandong peninsula. A few key cities play an intermediary role in carrying the innovation elements in the shortest path to circulate between cities; most regions can communicate with each other through several urban associations, and the shortest intermediary hub exists in the northeast, Shandong peninsula, southwest, northwest and central regions and the Yangtze River Delta gathering center. The gathering center carries out the exchange of elements, and the difference in the driving action of the cities in the agglomeration process is gradually expanding. The self-organization ability of cities in cohesive subgroups 2 and 3 is continuously enhanced. Finally, the corresponding recommendations for promoting the establishment of a coordinated and innovative urban system are proposed.