Spatial-Temporal Heterogeneity of Coupling and Coordination Between Green Land Use and Economic Growth in Beijing-Tianjin-Hebei Area

This paper discussed the spatial-temporal heterogeneity and its influencing factors of the coupling coordination of green land use and economic growth in 13 cities of Beijing-Tianjin-Hebei area. This work aims to provide decision-making references for the rational utilization of land resources and the transformation of economic growth mode. Super efficiency SBM model, standard deviation ellipse method, coupling coordination degree model and geographical detector method were conducted based on the section data of 2006, 2011 and 2016. Results show that: (1) From 2006 to 2016, the moving trends of green land use and economic growth systems in Beijing-Tianjin-Hebei area were northeast-southwest and northeast-north respectively, but the overall spatial distribution was northeast-southwest. (2) The coupling coordination degree ranged from 0.34 to 0.41, which changed from mild imbalance to close to imbalance, and the regions in northwest and south Hebei were always low; Beijing and Tianjin were lagging behind state in green land use, while cities in Hebei were lagging behind in economic growth. (3) The urbanization rate q value was up to 0.799 4 among detection of influence factors, and the interaction between the proportion of tertiary industry in GDP and the comprehensive utilization rate of industrial solid waste was the largest, which was 0.955 6. The research concluded that there are significant differences between green land use and economic growth in Beijing, Tianjin and Hebei in recent 10 years. The spatial coupling coordination level maintains the concentration and stability of inter annual distribution, but shows significant spatial-temporal heterogeneity. The urbanization rate is the dominant factor and the interaction effect of any two factors is better than the independent effect of single factor on the coordinated development of the two systems.