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A multi-level characterization method for the assessment of urban ecological risks
Authors:Chunming Li  Yuantong Jiang  Xinyi Yang
Institution:1. Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China;2. University of Chinese Academy of Sciences, Beijing, China
Abstract:Urban ecological risk characterization is the final step in risk assessment and an important foundation upon which risk managers build risk aversion, risk control, and emergency handling strategies. In this study, we reviewed present risk characterization methods and proposed a multi-level characterization method for the assessment of urban ecological risks. The new characterization method consists of four elements: urban ecological risk sources, risk source probabilities, assessment endpoint indicators, and assessment endpoint indicator probabilities. Using this method, results of risk assessments can be organized into different levels of detail to meet different risk management goals.
Keywords:Urban ecological risk  risk assessment  risk characterization  risk management  decision support
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