中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Changes in aridity and its driving factors in China during 1961-2016

文献类型:期刊论文

作者Liu, Laibao1,2; Wang, Yang3; You, Nanshan1,2; Liang, Ze1,2; Qin, Dahe4; Li, Shuangcheng1,2
刊名INTERNATIONAL JOURNAL OF CLIMATOLOGY
出版日期2019
卷号39期号:1页码:50-60
关键词aridity China climate change contribution Penman-Monteith equation potential evapotranspiration
ISSN号0899-8418
DOI10.1002/joc.5781
通讯作者Li, Shuangcheng(scli@urban.pku.edu.cn)
英文摘要Understanding the changes in aridity is crucial because of the substantial impacts it can have on human society. However, realistic aridity changes and their underlying climatic mechanisms demonstrate large uncertainties in China. Here we adopted the aridity index (AI) to assess the aridity changes in China, and we quantified the relative contributions of various climatic drivers (the precipitation, net radiation, wind speed, relative humidity, and air temperature) to AI changes based on the station data during 1961-2016. Our results showed that the arid/semi-arid northwest China and Tibet Plateau experienced wetting trends, while western sub-humid north and northeast China and western humid south China exhibited drying trends during 1961-2016. The dominant climatic drivers involved in the changing AI trends changed from arid to humid regions. In arid northwest China, increasing precipitation and decreasing wind speeds contributed the most to the wetting trends (0.024 and 0.017 in 56years, respectively). In the semi-arid Tibet Plateau, increasing precipitation dominated the wetting trends (0.045 in 56years). However, in sub-humid/humid north and northeast China and south China, decreasing wind speed and net radiation dominated the annual AI changes (0.061 and 0.092 in 56years, respectively). In addition, AI of northwest China and the Tibet Plateau exhibited a significant abrupt change in 1987 and exhibited wetter states afterwards, which could be caused by the abrupt increase in precipitation in 1987. This study could improve current understanding of the aridity changes in China and help adapt its potential impacts.
收录类别SCI
WOS关键词NORTHWEST CHINA ; PRECIPITATION EXTREMES ; CLIMATE-CHANGE ; REFERENCE EVAPOTRANSPIRATION ; TRENDS ; TEMPERATURE ; VARIABILITY ; EVAPORATION ; RESOURCES ; RAINFALL
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000459638400005
出版者WILEY
URI标识http://www.irgrid.ac.cn/handle/1471x/2555540
专题寒区旱区环境与工程研究所
通讯作者Li, Shuangcheng
作者单位1.Peking Univ, Coll Urban & Environm Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
2.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing, Peoples R China
3.China Meteorol Adm, Natl Climate Ctr, Beijing, Peoples R China
4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China
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GB/T 7714
Liu, Laibao,Wang, Yang,You, Nanshan,et al. Changes in aridity and its driving factors in China during 1961-2016[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(1):50-60.
APA Liu, Laibao,Wang, Yang,You, Nanshan,Liang, Ze,Qin, Dahe,&Li, Shuangcheng.(2019).Changes in aridity and its driving factors in China during 1961-2016.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(1),50-60.
MLA Liu, Laibao,et al."Changes in aridity and its driving factors in China during 1961-2016".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.1(2019):50-60.

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来源:寒区旱区环境与工程研究所

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