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Changes of compound hot and dry extremes on different land surface conditions in China during 1957-2018

文献类型：期刊论文

作者Feng, Yao2; Liu, Wenbin2; Sun, Fubao1,2,3,4,5; Wang, Hong2
刊名INTERNATIONAL JOURNAL OF CLIMATOLOGY
出版日期2020-08-17
页码15
关键词arid and humid regions CHDE China land covers
ISSN号0899-8418
DOI10.1002/joc.6755
通讯作者Liu, Wenbin(liuwb@igsnrr.ac.cn) ; Wang, Hong(wanghong@igsnrr.ac.cn)
英文摘要The co-occurrence of hot and dry extremes (compound hot and dry extreme, CHDE) has attracted much attention due to the amplified impact on wildfire occurrence, agriculture production and human health. Most existing studies have reported the spatiotemporal variations of CHDE, changes in CHDE on different land surface conditions are barely discussed. The study investigated the spatial and temporal differences of CHDE over different regions and land covers in China during 1957-2018. On average over China, both day- and night-time CHDEs have increased with a more rapid (2.6 times faster) and significant (p < .05) increasing trend in night-time ones. Increasing trends are mainly distributed in north China with decreasing trends in central China. Moreover, increasing trends in night-time mildly dry (0.07 per decade) and moderately hot (0.06 per decade) CHDEs are the largest among all dry and hot CHDEs. Regionally, the frequency of CHDE is the highest over the humid and sub-humid regions for night- and day-time CHDEs, but the lowest for both over the arid region. Meanwhile, CHDE has increased over the humid and sub-humid regions in the recent decade but decreased over the arid region since 1957. For different land covers, the frequency of CHDE is the highest over forest but the lowest over grassland. Day-time CHDEs of different hot magnitudes indicate the largest increasing trends over grassland caused by the largest increasing trends of day-time heatwave. Significant (p < 0.05) increasing trends of day- and night-time CHDEs over forest may increase the risks of tree mortality or forest fires after 2010 and larger increasing trends in night-time CHDEs over urban may negatively impact human health.
WOS关键词NORTHWEST CHINA ; DROUGHT ; PRECIPITATION ; EVENTS ; HEALTH
资助项目National Research and Development Program of China[2019YFA0606903] ; National Research and Development Program of China[2016YFA0602402] ; National Research and Development Program of China[2016YFC0401401] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-ZS-2019-3] ; Key Research Program of the Chinese Academy of Sciences[ZDRWZS-2017-3-1] ; Top-Notch Young Talents Program of China
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000560915700001
出版者WILEY
资助机构National Research and Development Program of China ; Key Research Program of the Chinese Academy of Sciences ; Top-Notch Young Talents Program of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/158038]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Wenbin; Wang, Hong
作者单位1.Chinese Acad Sci, Ctr Water Resources Res, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China
4.Akesu Natl Stn Observat & Res Oasis Agroecosyst, Akesu, Peoples R China
5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Yao,Liu, Wenbin,Sun, Fubao,et al. Changes of compound hot and dry extremes on different land surface conditions in China during 1957-2018[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2020:15.
APA Feng, Yao,Liu, Wenbin,Sun, Fubao,&Wang, Hong.(2020).Changes of compound hot and dry extremes on different land surface conditions in China during 1957-2018.INTERNATIONAL JOURNAL OF CLIMATOLOGY,15.
MLA Feng, Yao,et al."Changes of compound hot and dry extremes on different land surface conditions in China during 1957-2018".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2020):15.

入库方式： OAI收割

来源：地理科学与资源研究所

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