[Research progress on quantitative evaluation methods of urban ecological carrying capacity]

Quantitative evaluation of urban ecological carrying capacity is a critical foundation for measuring urban sustainable development in the new era. This review would enrich the concept and connotation of urban ecological carrying capacity by sorting out its components and characteristics. We categorized the methods for quantifying urban ecological carrying capacity into static evaluation methods, including ecological footprint method, comprehensive evaluation method, state space method, net primary productivity method, and carbon-oxygen balance method, as well as dynamic simulation prediction methods, including system dynamics models, BP neural network prediction models, and grey prediction models. We further summarized both the advantages and disadvantages of these quantitative evaluation methods. Finally, we predicted the development trends of quantitative evaluation methods for urban ecological carrying capacity, and put forward further in-depth research from aspects such as strengthening theoretical foundations, constructing indicator systems, establishing evaluation principles, and optimizing methods.