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DOI10.1088/1748-9326/ab072e
Increased population exposure to extreme droughts in China due to 0.5 degrees C of additional warming
Chen, Huopo1,2; Sun, Jianqi1,2
2019-06-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2019
卷号14期号:6
文章类型Article
语种英语
国家Peoples R China
英文摘要

Drought, one of the major natural disasters in China, generally causes the largest socioeconomic loss each year and also has severe human health impacts. It is thus crucial to assess the changes in droughts in this region under different climate change scenarios. This study examines the impacts of stabilized 1.5 degrees C and 2.0 degrees C warming at the end of the 21st century on drought events in China by using a set of coupled Earth system model low-warming simulations. If warming is limited to 1.5 degrees C or 2.0 degrees C, these simulations suggest that droughts will become more frequent and more intense compared to the present day, particularly over the northern regions of China. In comparison to the 1.5 degrees C warmer future, the 0.5 degrees C additional warming in the 2.0 degrees C warmer future will account for approximately 9% of the increase in the drought occurrence in China and approximately 8% of extreme droughts, while there are relatively small responses for moderate and severe droughts. Consequently, the additional warming would lead to significantly higher drought impacts, and the population exposure to the extreme droughts is projected to increase by approximately 17%, although the exposure to moderate droughts decreases. Therefore, our results suggest that the mitigation of anthropogenic warming by 0.5 degrees C to achieve the 1.5 degrees C warmer climate instead of the 2.0 degrees C climate may have benefits for future drought risks and impacts.


英文关键词drought population exposure 1.5 degrees C 2.0 degrees C China
领域气候变化
收录类别SCI-E
WOS记录号WOS:000470888000001
WOS关键词CLIMATE-CHANGE ; 1.5-DEGREES-C
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/183754
专题气候变化
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing, Peoples R China;
2.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Chen, Huopo,Sun, Jianqi. Increased population exposure to extreme droughts in China due to 0.5 degrees C of additional warming[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(6).
APA Chen, Huopo,&Sun, Jianqi.(2019).Increased population exposure to extreme droughts in China due to 0.5 degrees C of additional warming.ENVIRONMENTAL RESEARCH LETTERS,14(6).
MLA Chen, Huopo,et al."Increased population exposure to extreme droughts in China due to 0.5 degrees C of additional warming".ENVIRONMENTAL RESEARCH LETTERS 14.6(2019).
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