Analysis on characteristics and spatial-temporal pattern of the coupling between land use efficiency and industrial structure in Guangdong Province
Reasonable coordination between land use and industrial structure is of great significance to explore high-quality devel-opment and promote economic transformation and upgrading.Based on the super-efficiency SBM model with undesired output and the spatial vector Angle method,this paper explored the spatial-temporal evolution characteristics and spatial correlation of the coupling coordination degree between land use efficiency and industrial structure in Guangdong Province from 2005 to 2020 by combining the coupling coordination model and spatial autocorrelation model.The results showed that:①The land use efficiency of Guangdong Prov-ince showed a"W"trend,and the level of industrial structure upgrading kept rising,the two trends were similar.②The coupling coordi-nation degree between land use efficiency and industrial structure had a large span,most cities were in a good coordination state,which had significantly improved over time.③The spatial pattern of coupling coordination degree was stable,it presented as East Guangdong>Pearl River Delta>West Guangdong>North Guangdong.The regional difference was narrowing.The internal difference of Pearl River Delta and west Guangdong was gradually expanding,then the internal difference of east Guangdong and North Guangdong was narro-wing.④The coupling coordination degree generally presented a trend from agglomeration to random.The spatial aggregation phenomenon gradually weakened,and the influence of both cold and hot spots decreased.
land use efficiencyindustrial structurecoupling coordination degreesuper efficiency SBM modelspatial autocorrela-tionGuangdong Province