Telecoupling characteristics and spatial clustering analysis of land use functions:An empirical study of counties in Beijing-Tianjin-Hebei Region by SNA model
With the coordinated development of the Beijing-Tianjin-Hebei Region becoming an important national strategy,multi-factor cross-regional flow has formed telecoupling relation-ships of land use functions.Taking the counties in Beijing-Tianjin-Hebei Region as the research unit,the entropy-weight TOPSIS method was used to measure the production,living and ecologi-cal function values of land use,and the social network analysis model was used to explore the land use functions relationship and identify the telecoupling characteristics of land use.The main results are as follows.(1)During 2010-2020,the spatiotemporal differentiation characteris-tics of land use functions in the studied region are significant.Land use production function de-clines,showing the characteristics of low northwest and high southeast;living function improves significantly,showing the trend of balanced development of multi-center situation;the fluctua-tion of ecological function rises,and the"inverted U-shaped"polarization phenomenon is obvi-ous.(2)Production function,living function and ecological function break through the geo-graphical proximity effect,and the telecoupling relationships present the obvious network struc-ture shape,but the overall network structure is relatively loose;the telecoupling networks of land use production function,living function and ecological function have the characteristics of small-world effect and scale-free,and the power structures show obvious"core-periphery"feature.(3)The telecoupling networks of production function,living function and ecological function forms four blocks through spatial clustering:there are five role types as main spillover,main benefit,mediator,two-way spillover and isolate.Therefore,telecoupling effect needs to be taken into ac-count when formulating relevant strategies for land use functions.The Beijing-Tianjin-Hebei Re-gion needs to focus on multi-point linkage and complementary advantages.It should play the leading and regulatory role of core counties in the network pattern,cultivate new growth poles,and ultimately achieve multi-functional synergy of land use.
land use functionstelecouplingSocial Network Analysis(SNA)entropy-weight TOPSISBeijing-Tianjin-Hebei Region
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