Global increase in the occurrence and impact of multiyear droughts

IF 44.7 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Science Pub Date : 2025-01-16 DOI:10.1126/science.ado4245
Liangzhi Chen, Philipp Brun, Pascal Buri, Simone Fatichi, Arthur Gessler, Michael James McCarthy, Francesca Pellicciotti, Benjamin Stocker, Dirk Nikolaus Karger
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引用次数: 0

Abstract

Persistent multiyear drought (MYD) events pose a growing threat to nature and humans in a changing climate. We identified and inventoried global MYDs by detecting spatiotemporally contiguous climatic anomalies, showing that MYDs have become drier, hotter, and led to increasingly diminished vegetation greenness. The global terrestrial land affected by MYDs has increased at a rate of 49,279 ± 14,771 square kilometers per year from 1980 to 2018. Temperate grasslands have exhibited the greatest declines in vegetation greenness during MYDs, whereas boreal and tropical forests have had comparably minor responses. With MYDs becoming more common, this global quantitative inventory of the occurrence, severity, trend, and impact of MYDs provides an important benchmark for facilitating more effective and collaborative preparedness toward mitigation of and adaptation to such extreme events.
全球多年干旱的发生和影响增加
在不断变化的气候中,持续多年的干旱(MYD)事件对自然和人类构成越来越大的威胁。我们通过检测时空连续的气候异常,对全球myd进行了识别和盘点,结果表明myd变得越来越干燥、越来越热,并导致植被绿色度日益减少。1980年至2018年,全球受myd影响的陆地面积以每年49279±14771平方公里的速度增加。温带草原的植被绿度在热带干旱期间下降幅度最大,而北方森林和热带森林的响应相对较小。随着多年灾害越来越普遍,对多年灾害的发生、严重程度、趋势和影响的全球定量盘点为促进更有效和协作的准备工作,以减轻和适应此类极端事件提供了一个重要基准。
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来源期刊
Science
Science 综合性期刊-综合性期刊
CiteScore
61.10
自引率
0.90%
发文量
0
审稿时长
2.1 months
期刊介绍: Science is a leading outlet for scientific news, commentary, and cutting-edge research. Through its print and online incarnations, Science reaches an estimated worldwide readership of more than one million. Science’s authorship is global too, and its articles consistently rank among the world's most cited research. Science serves as a forum for discussion of important issues related to the advancement of science by publishing material on which a consensus has been reached as well as including the presentation of minority or conflicting points of view. Accordingly, all articles published in Science—including editorials, news and comment, and book reviews—are signed and reflect the individual views of the authors and not official points of view adopted by AAAS or the institutions with which the authors are affiliated. Science seeks to publish those papers that are most influential in their fields or across fields and that will significantly advance scientific understanding. Selected papers should present novel and broadly important data, syntheses, or concepts. They should merit recognition by the wider scientific community and general public provided by publication in Science, beyond that provided by specialty journals. Science welcomes submissions from all fields of science and from any source. The editors are committed to the prompt evaluation and publication of submitted papers while upholding high standards that support reproducibility of published research. Science is published weekly; selected papers are published online ahead of print.
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