摘要：The development of innovation integration of the Yangtze River Delta is an important strategic in China.By constructing the Yangtze River Delta innovative gravity model,this paper investigates the urban development level,innovation level,total gravitational strength and gravitational network structure characteristics,as well as the innovative radiation intensity and radiation hinterland of the core cities.Our results indicate that the innovative gravity among the Yangtze River Delta cities is a market-oriented gravitational force that transcends the administrative boundary.Its distribution also displays the “core-edge” innovation gravitational network structure.Therefore,the Yangtze River Delta should integrate their local innovation network with the overall innovation network according to the spatial geography and marketization.It is necessary to build up the innovation integration strategy for the Yangtze River Delta,accelerate the integration of innovation resources in the Yangtze River Delta and industrial integration.The integrated construction of the infrastructure and system of the Yangtze River Delta will promote the creation of the core innovation growth pole and the innovation network of the north and south areas to form a more integrated innovation network.
关键词：Yangtze River Delta;Gravity model;Innovation;Integration
