Exploring alternative pathways toward more sustainable regional food systems by foodshed assessment-City region examples from Vienna and Bristol
Exploring alternative pathways toward more sustainable regional food systems by foodshed assessment-City region examples from Vienna and Bristol
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DOI：
10.1016/j.envsci.2021.07.013
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发表时间：
2021-07-22
影响因子：
6
通讯作者：
Piorr, Annette
中科院分区：
文献类型：
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作者：
Vicente-Vicente, Jose Luis;Doernberg, Alexandra;Piorr, Annette
粮食供应系统的复原力已成为许多国家的一个重要问题，特别是在国际供应出现重大干扰(例如，新冠肺炎限制的影响)的情况下。饮食区域化和增加粮食自给自足大大有助于缩短粮食供应链，从而提高粮食系统的复原力。同时，粮食供应的混乱可为粮食系统向农业(例如有机农业)实施可持续管理做法过渡提供机会，从而提高粮食生产的可持续性。在这项研究中，我们为维也纳和布里斯托尔两个城市提出了一个食物来源，为这种区域化和自给自足的讨论划定了空间范围。我们使用大都会粮仓和自给自足情景模型来评估这些地区在涉及更可持续和更有弹性的粮食系统情景的不同路径下的潜在自给自足，方法是区分：i)区域化，ii)生产系统，iii)粮食损失和浪费，以及iv)2050年前的人口增长。此外，我们找到了涉及这两个城市的主要地方粮食政策和研究，将它们与目前的自给自足水平联系起来，并提出了提高自给自足水平的途径。我们的结果表明，当消费者的行为转向可持续生产的区域产品时，建议的食品棚适合实现高度的潜在自给自足，并减少家庭的食物浪费和农业的食物损失。与此同时，应增加以可持续方式管理的区域作物生产的多样化。我们呼吁采用以可持续城市区域粮食系统概念为基础的粮食供应办法，以便将其纳入粮食政策，以可持续地增加粮食自给自足。
The resilience of the food supply system has become a vital issue for many countries especially under substantial international supply disturbances (e.g. the effects of COVID-19 restrictions). Regionalizing diets and increasing food self-sufficiency contribute greatly to shortening food supply chains and, therefore, to increasing the resilience of the food system. Simultaneously, food supply disturbances can offer a chance for food system transition toward implementing sustainable management practices in agriculture (e.g. organic farming), increasing the sustainability of food production. In this study, we have proposed a foodshed for the cities of Vienna and Bristol, delineating the spatial extent for such a regionalization and self-sufficiency discussion. We used the Metropolitan Foodshed and Self-sufficiency Scenario model to assess the potential self-sufficiency of these areas under different pathways involving more sustainable and resilient food system scenarios by distinguishing: i) The regionalization, ii) production system, iii) food losses and wastage, and iv) population growth until 2050. Furthermore, we have found the main local food policies and studies involving both cities, linking them to the current self-sufficiency levels and proposing pathways to increase them. Our results suggest that the foodsheds proposed are suitable to achieve a high degree of potential self-sufficiency when shifting consumers' behavior toward sustainably produced regional products, and reducing food wastes in households and food losses in agriculture. This should be accompanied in parallel by an increase in the diversification of regional crop production managed sustainably. We call for the adoption of the foodshed approach - based on the concept of sustainable city region food systems - so that it can be integrated into the food policies to increase food selfsufficiency sustainably.