Spatio-temporal Characteristic of Urban-Rural Integration Development Level in Hainan Free Trade Port and Its Driving Mechanism
Taking the 18 cities and counties of Hainan Free Trade Port as the research unit and using the real coding based accelerating genetic algorithm and projection pursuit classification model(RAGA-PPC),this paper measures the level of urban-rural integration development from 2012 to 2022,and adopts the kernel density method,GIS spatial analysis,and the random forest model to explore the characteristics of the spatial and temporal evolution of the level of urban-rural integration development and its driving mechanism.It's found that:1)The level of urban-rural integration development of Hainan Free Trade Port presents a good trend and there is an obvious stage characteristics of M-shaped chronological evolutionary and multi-level differentiation trend of"1 main peak+2 side peaks".2)The overall level has changed from an inverted"V"structure with a"low-high-low"pattern from the east of Hainan Free Trade Port to the west of Hainan Free Trade Port in the early part of the study to a distribution with a concentration of high values at the north and south ends and a low-level polarisation in the central part running through the east and west of Hainan Free Trade Port in the late part of the study.3)Agricultural development scale and transportation accessibility are strong influence-type dominant factors,the ratio of financial support for agriculture,openness to the outside world,government intervention and other factors are influence-type contributing factors,while the degree of education support is a weak influence-type factor,and the changes in the marginal influence of the driving factors and the reflective and receptive capacity of the funds,platforms,channels,and policies among the regions are the fundamental reasons for the spatio-temporal heterogeneity.
urban-rural integrationlevel measurementdriving mechanismurbanizationagriculturetransportationHainan Free Trade Port
NETL
NSTL
万方数据
