Abstract:With rapid urbanization and social-economic transformation, the changes of ecological structure, processes, and functions in urban ecosystems have resulted in the broad decline of environmental quality and ecosystem services. Thus, urban ecological risk management is important to regulate and protect urban ecosystems, which have many vital issues regarding regional sustainable development. Based on the review of researches on ecological risk management, and risk sources, receptor characteristics as well as risk evaluation methods in urban ecosystems, we defined the objectives of urban ecological risk management according to the need for risk management, which can be interpreted as control objectives, regulation objectives, and planning objectives. Of these, the control objectives focus on the protected entities and relative attributes. The regulation objectives are defined as cost-benefit analyses of corresponding risk prevention. Finally, the planning objectives integrate risk management into the blueprint of urban planning. Being oriented toward characteristics of urban ecosystem risk management, the methods and models of ecological risk management were analyzed based on the aspects of resilience, dynamic management, and spatial heterogeneity. Considering the character of vulnerability and resilience in urban ecosystems, the restoration and regulation function of natural ecosystems should receive more attentions. Furthermore, building an ecological infrastructure is a key point to enhance response capacity, with integration and optimization of different adaptive capabilities. Ultimately, building a resilient community is the basic unit of risk management, and its construction norms and design features should be incorporated into urban planning and construction to promote the substantial progress of urban risk management. The effects of managing actions should be analyzed in accordance with scenario analysis, considering the dynamic character of urban ecosystems, changes in the landscape, and risk prevention. Management that optimizes the ecological pattern should be integrated into urban planning. The risk map could provide significant information for the management of specific ecological risks, whereas the best management plan could be formatted considering the demand, and require coordination and trade-offs among key regulating services. The mechanisms of urban ecological risk management are discussed at the end of the article and suggestions on urban ecological risk management are put forward including specifying risk management objectives, building a risk management framework with urban characteristics, and establishing a management mechanism.