Evolution trajectory and driving mechanism of the synergistic effect on construction waste and carbon reduction:...

Collaborative promotion on the synergistic effect for construction waste (CW) and carbon emission (CE) reduction had a great significance to deeply analyze the evolution trajectory and driving mechanism of the synergistic effect of CW and CE reduction at the regional scale, to achieve the construction industry sustainable development. In our research, Coupling Coordination Degree (CCD), Exploratory Spatial Data Analysis (ESDA) and Geographically Weighted Regression (GWR) models were used to measure the synergistic effect, the spatial correlation and driving mechanism for CW and CE reduction on the construction industry in China from 2005 to 2021. The results concluded that CW and CE were increased with average annual growth rates of 8.8 % and 13.41 %, respectively. It presented a spatial pattern of "high in the east and low in the west" divided by the Hu Huanyong Line. The synergistic effect gradually decreased with the pattern of "High in the east and low in the west", transition to a spatial pattern of "High in the south and low in the north". There was significant spatial heterogeneity on driving factors of population size, per capita GDP, industrial structure, CE intensity, and CW generation intensity on the synergistic effect. Further, the findings provided insights and empirical supports for the government to formulate a collaborative implementation plan for reducing pollution and CE for the regional sustainability development.