“…From mainstream references in the literature to this topic, such as the green city [8], ecological city [9], green economy [10,11], circular economy [12,13], low carbon city [14,15], ecological economy, green development, sustainable development [16], resource saving and environmental friendly society (two-oriented society) [17], we can see that representative achievements are mainly in the fields of indicator systems of regional green development assessment, the comprehensive assessment model and regional coordinated development evaluation methods. To summarize, this research mainly addresses the following research gaps: firstly, how to assess the level of regional green development in a relatively logical and accurate way; secondly, how to develop scientific and effective institutions and policies to help build green cities, provinces and countries based on the assessment results; thirdly, how to find the optimal path for China's green regional development; lastly, how to ultimately realize holistic green sustainable development in terms of human, economic and social aspects.…”