Violent conflict exacerbated drought-related food insecurity between 2009 and 2019 in sub-Saharan Africa
Violent conflict exacerbated drought-related food insecurity between 2009 and 2019 in sub-Saharan Africa
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DOI：
10.1038/s43016-021-00327-4
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发表时间：
2021-08-12
期刊：
影响因子：
23.2
通讯作者：
Markey, Kelsey
中科院分区：
文献类型：
--
作者：
Anderson, Weston;Taylor, Charles;Markey, Kelsey
冲突、干旱和蝗虫是非洲粮食安全的主要关切，但每种灾害造成的危机的相对重要性和时空规模特征不佳。在这里，我们使用连续的国家以下数据来证明，从2014年开始的整个撒哈拉以南非洲地区粮食不安全的加剧可归因于暴力冲突的增加，特别是在南苏丹和尼日利亚。虽然干旱仍然是引发粮食危机的主要诱因，但从2009年到2018年，与干旱有关的危机并没有增加。与生活在农业区的人相比，牧民在遭遇干旱时经历了更广泛、更严重和更持久的粮食危机。在旱灾发生后的两年里，牧区的粮食无保障程度仍然很高，而农业区在大约12个月内恢复到旱灾前的粮食安全水平。2009-2018年期间少数已证实的饥荒恰逢冲突和干旱，而蝗虫在此期间对粮食安全几乎没有影响。
Conflict, drought and locusts are leading concerns for African food security but the relative importance and spatiotemporal scale of crises resulting from each hazard is poorly characterized. Here we use continuous, subnational data to demonstrate that the rise of food insecurity across sub-Saharan Africa that began in 2014 is attributable to an increase in violent conflict, particularly in South Sudan and Nigeria. Although drought remains a leading trigger of food crises, the prevalence of drought-related crises did not increase from 2009 to 2018. When exposed to drought, pastoralists experienced more widespread, severe and long-lasting food crises than people living in agricultural zones. Food insecurity remained elevated in pastoral regions for 2 years following a drought, while agricultural regions returned to pre-drought food-security levels in similar to 12 months. The few confirmed famines during the 2009-2018 period coincided with both conflict and drought, while locusts had little effect on food security during this period.