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ERFS研究文章|城市同时受到粮食冲击的风险随着供应链易受干旱影响而增加

23 May 2025 gabriels

Global warming exacerbates agricultural production losses from extreme climate events with cascading impacts along supply chains that affect cities. However, little is known about cities’ vulnerability to climate-related food supply shocks. Using data-driven and network-based approaches, we determine the vulnerability of cities in the United States to domestic drought-related food shocks. Our vulnerability framework integrates key traits of a social-ecological system’s response to hazards: resilience, exposure, and sensitivity to disruption. We find that vulnerability varies considerably across cities, with western cities showing higher vulnerability than eastern cities (56% versus 47%; p < 0.001). It tends to be high in western cities because of high supply chain exposure to water stress and high urban food insecurity. Moreover, we find that southern cities show higher vulnerability than their northern counterparts, primarily due to disparities in food insecurity. Using the unprecedented 2012 U.S. drought as a case study, we show that high-vulnerability cities are associated with a higher risk of simultaneous food shocks and greater food supply losses than low-vulnerability cities. Our vulnerability framework can help inform climate adaptation interventions for food system security in urban-rural interactions.

文章介绍

Risk of simultaneous food shocks to cities increases with supply chain vulnerability to droughts

Michael Gomez and Alfonso Mejia

通讯作者：

Alfonso Mejia，美国宾夕法尼亚州立大学

期刊介绍

Environmental Research: Food Systems

Environmental Research: Food Systems是一本多学科、开放获取的期刊，致力于解决可持续食品系统的科学问题，并在影响/未来风险、复原力、环境减缓、环境适应、环境安全和最广泛意义上的解决方案方面进行努力。