The study of water resources carrying capacity (WRCC), a major component of resources and environment carrying capacity (RECC), began relatively recently. However, WRCC has witnessed a rapid development in terms of concept, calculation methods, and empirical research in recent years. WRCC has become an important criterion for rational development and utilization of regional water resources. This paper first briefly reviews the development process of WRCC. It then evaluates and contrasts the representative research methods of conventional trend (CT), system dynamics (SD), multi-objective model analysis (MOMA), comprehensive evaluation (CE), and dynamic simulation recursive (DSR). The results show that although there are various methods of WRCC, the major methods used have become out-of-date and stagnant, and new more sophisticated methods and technologies are lacking. Specifically, our analysis found that the index system, scientific robustness and comprehensiveness of evaluation criteria of current research methods are insufficient and need to be improved. In addition, the dynamic research of WRCC should receive more attention, and it requires further study to make it more applicable to real-world uses. Finally, a set of monitoring and early warning systems should be established and applied in demonstration areas to meet the urgent needs of water resource management in the new era.
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