文章基本信息

标题：Hungry cities: how local food self-sufficiency relates to climate change, diets, and urbanisation
本地全文：下载
作者：Steffen Kriewald ; Prajal Pradhan ; Luis Costa 等
期刊名称：Environmental Research Letters
印刷版ISSN：1748-9326
电子版ISSN：1748-9326
出版年度：2019
卷号：14
期号：9
页码：1-10
DOI：10.1088/1748-9326/ab2d56
出版社：IOP Publishing Ltd
摘要：Using a newly developed model approach and combining it with remote sensing, population, and climate data, first insights are provided into how local diets, urbanisation, and climate change relates to local urban food self-sufficiency. In plain terms, by utilizing the global peri-urban (PU) food production potential approximately 1bn urban residents (30% of global urban population) can be locally nourished, whereby further urbanisation is by far the largest pressure factor on PU agriculture, followed by a change of diets, and climate change. A simple global food transport model which optimizes transport and neglects differences in local emission intensities indicates that CO2 emissions related to food transport can be reduced by a factor of 10.
关键词：peri-urban agriculture; urbanization; dietary patterns; agricultural productivity; food systems; local food