As an important support of convention and exhibition activities,convention and exhibition venues play an important role in promoting the operation of convention and exhibition projects and the development of convention and exhibition economy.Taking 31 provincial-level regions in China as the research unit and exhibition venues with a scale of more than 20000 m2 as the research object,this paper analyzes the spatio-temporal heterogeneity and evolution mechanism of the distribution of convention and exhibition venues in China by using the methods of Kernel density analysis,nearest neighbor index,spatial autocorrelation and Geodetector.The results show that:1)At the national scale,convention and exhibition venues are generally in a bow-shaped spatial distribution pattern which is made up of three cores and seven hot spots,and the gravity center continues to move from the northwest of China to the southeast of China.2)At the provincial scale,the spatial distribution pattern is obviously different between the east of China and the west of China,which is consistent with the level of economic development,and shows a horizontal gradient evolution.The distribution of convention and exhibition venues in the province is mostly concentrated,but tends to be dispersed.3)The spatiotemporal heterogeneity of the distribution of convention and exhibition venues in China is affected by economy,society,industry endogenous and traffic environment,and the influence degree is increasing.The interaction of any two factors is higher than the force of a single factor.
convention and exhibition venuesspatiotemporal heterogeneityevolutionary mechanismGeodetectorChina