Characterization of Green Development Level Measurement and Spatial and Temporal Evolution of Beijing-Tianjin-Hebei Cities under the "Dual Carbon" Goal

Abstract

This paper takes 13 prefectural-level cities in Beijing-Tianjin-Hebei as research samples, constructs a green development evaluation index system for urban agglomerations from the four dimensions of scientific and technological innovation, economic growth, green life and green "double carbon", and applies the entropy value method, ArcGIS natural fracture classification method and other tools to measure the level of green development from 2011-2020 and analyze its spatial and temporal evolution characteristics.Using the entropy value method, ArcGIS natural fracture classification method and other tools, we measured the level of green development from 2011 to 2020 and analyzed its spatial and temporal evolution characteristics.The study found that: (1) in the evaluation system, scientific and technological innovation, green "double carbon" and economic growth have the highest weight on the level of green development; (2) the average growth rate of the level of green development in Beijing-Tianjin-Hebei cities was 6.75% in 2011-2015, and it rose to 8.88% in 2016-2020; (3) the level of green development in the Beijing-Tianjin-Hebei(3) Beijing-Tianjin-Hebei city cluster gradually forms a spatial distribution pattern of "high - high agglomeration, low - low agglomeration".