城市新陈代谢视角下的城市公共健康风险

Urban public health risk is an important theme in contemporary urban research that has not received sufficient attention in Chinese human geography. Established domestic studies have focused on two dimensions - healthy city and urban risk governance; however, these studies have been influenced by the urban/nature dualism. Since the 1990s, urban political ecology has rapidly emerged in Western human geography, proposing a theory of urban metabolism centered on social relations, linking society and nature, human actors and non-human actors at both spatial and relational levels, achieving a transcendence of dualism. Based on this theory, this paper analyzes the specific forms of urban public health risks at the spatial and relational levels, pointing out that at the spatial level, there are public health risks of spatial flow and overlap and public health risks of spatial production and reproduction activities; at the relational level, there are public health risks of "metabolic rift" and public health risks of public perception.