長三角城市群知識密集型服務(wù)業(yè)的空間極化與輻射分析

摘要： 知識密集型服務(wù)業(yè)已成為經(jīng)濟(jì)增長的主要動力,而長三角城市群作為我國主要的經(jīng)濟(jì)增長極,其知識密集型服務(wù)業(yè)的空間極化與輻射對長三角城市群的經(jīng)濟(jì)健康發(fā)展及區(qū)域一體化具有重要意義。根據(jù)2005—2017年長三角城市群知識密集型服務(wù)業(yè)的相關(guān)數(shù)據(jù),通過構(gòu)建知識密集型服務(wù)業(yè)集聚度指標(biāo)體系,利用集中度衡量長三角城市群的知識密集型服務(wù)業(yè)的極化水平,利用輻射半徑與空間聯(lián)系衡量其輻射力。研究發(fā)現(xiàn),知識密集型服務(wù)業(yè)在長三角聚集態(tài)勢明顯,從以上海為核心的單核態(tài)勢演變?yōu)槎嗪说木奂瘧B(tài)勢,但南京、合肥等城市沒有達(dá)到城市群規(guī)劃水平;城市群內(nèi)中心城市的知識密集型服務(wù)業(yè)的輻射力呈現(xiàn)一定的梯度,形成以上海為中心包括蘇州在內(nèi)的大核心圈層、以杭州為中心的次核心圈以及逐步成熟的以南京為中心的圈層的空間分布結(jié)構(gòu)。
Knowledge-intensive services have become the main driver of economic growth. The Yangtze River Delta urban agglomeration is China's main economic growth pole. The spatial polarization and radiation of its knowledge-intensive service industry is of great significance to the healthy economic development and regional integration of the Yangtze River Delta urban agglomeration. Based on the data of the knowledgeintensive service industry of the Yangtze River Delta from 2005 to 2017 and the knowledge-intensive service industry concentration index system,the paper uses concentration to measure the polarization level of knowledge-intensive service industries in the Yangtze River Delta urban agglomeration,using radiation radius and space to measure its radiation force.It is found that the knowledge-intensive service industry is gathering in the Yangtze River Delta from the single-core situation with Shanghai as the core to the multi-core gathering situation. However,cities such as Nanjing and Hefei do not reach the urban agglomeration level; The radiation intensity of the knowledge-intensive service industry in the central cities of the urban agglomeration presents a certain gradient. The formation of a large core circle centers on Shanghai,including Suzhou,the sub-core circle centerson Hangzhou,and the spatial distribution structure of the gradually-formed Nanjing-centered circle.