Urban sustainable development efficiency towards the balance between nature and human well-being: Connotation, measurement, and assessment

Sustainable development requires that development patterns that meet the needs of the present generation do not harm the needs of future generations. Sustainable development not only demands the sustainability of natural resources and the environment, but also emphasizes sustainable human welfare and resident happiness. Urban sustainable development can be achieved easily at local scales. Urban sustainable development efficiency (USDE) reflects the relevant efficiency of human welfare and resources and the environmental input into an urban system. This paper presents an assessment framework of urban sustainable development based on the reality of natural resource limitations and human welfare needs, and evaluates the performance of urban sustainable development in Chinese cities as a case study. The assessment framework is constructed based on natural resource inputs and human welfare outputs. The assessment index system includes 11 specific indicators, and data envelopment analysis was chosen to assess the urban sustainable development performance of 287 cities in China. The USDE results of the sample cities showed an increasing trend in sustainability over the past three decades, with visible spatial differences. By assessing the urban development of society, economy, and industry in China, the results reflected various characteristics and differences in urban development. The methods and index system used in this study can be used to reveal temporal and spatial differences in urban development resource inputs, human welfare, and environmental support.