Conflict or Coordination? Analysis of Spatio-Temporal Coupling Relationship between Urbanization and Eco-Efficiency: A Case Study of Urban Agglomerations in the Yellow River Basin, China

The coordination and coupling of new urbanization the ecological environment is great significance for high-quality development Yellow River basin, China. In this paper, efficiency seven urban agglomerations in China, from 2006 to 2019 are calculated at city level. Spatial correlation analysis between carried out by applying spatial association model. Then, spatio-temporal relationship estimated based on relative models. results show that has been rising, 0.83 0.91 2019. Ecological first stabilized then rose 1.03 1.23 Spatially, cities with high increasing west east. Cities eco-efficient developments northwest southeast. two an N-type relationship, trend falling, rising. degree upper lower reaches higher than middle Finally, paper puts forward policy recommendations coordinated perspective future differentiated different agglomerations.