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Observed trends of different rainfall intensities and the associated spatiotemporal variations during 1958–2016 in Guangxi, China
Qin, Nian Xiu1,2; Wang, Jun Neng1,2; Gao, Liang3; Hong, Yang4; Huang, Jia Li1; Lu, Qin Qin1
2021-01
Source PublicationInternational Journal of Climatology
ISSN0899-8418
Volume41Issue:S1Pages:E2880-E2895
Abstract

In a changing climate, drought and flood hazards become more frequent, posing high risks to human life and property. The Guangxi Zhuang Autonomous Region is selected as the study area. The flood and drought records, and the daily precipitation data at 23 stations from 1958 to 2016 are adopted. The temporal and spatial trends of precipitation intensities, precipitation days and the corresponding proportions relative to the total amounts are examined using the Mann-Kendall trend test. The influence of the rainfall intensity on floods and droughts in Guangxi is also investigated. During the past 59 years in Guangxi, there is a significant decrease in light rain, and an increase in rainstorm in general. The larger the rainfall intensity is, the more stations show increasing trends of the corresponding rain events on different time scales (the monthly, seasonal or annual scale). Significant decreasing trends of the number of days with light precipitation are found over entire Guangxi, while increasing trends of the number of days with rainstorm events are widely distributed in most parts of Guangxi. There is a decrease in the number of stations indicating increases in proportion of light precipitation days, while an increase in the number of stations showing increases in proportion of rainstorm days. A significant increase in flood hazards is detected since the 1990s. The precipitation in Guangxi tends to be intensified in the future. The frequency and intensity of drought and flood events are very likely to increase, posing challenges to future agricultural production, water resources planning and management.

KeywordDrought Flood Precipitation Days Precipitation Intensity Temporal And Spatial Correlation
DOI10.1002/joc.6888
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000582962300001
Scopus ID2-s2.0-85094677020
Fulltext Access
FWCI0.7609558
Citation statistics
Document TypeJournal article
CollectionTHE STATE KEY LABORATORY OF INTERNET OF THINGS FOR SMART CITY (UNIVERSITY OF MACAU)
Corresponding AuthorGao, Liang
Affiliation1.Nanning Normal University, Nanning, China
2.Laboratory of Beibu Gulf Environment Change and Resources Use, Ministry of Education, Nanning Normal University, Nanning, China
3.State Key Laboratory of Internet of Things for Smart City and Department of Civil and Environmental Engineering, University of Macau, Macao
4.School of Civil Engineering and Environmental Science, University of Oklahoma, Norman, United States
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Qin, Nian Xiu,Wang, Jun Neng,Gao, Liang,et al. Observed trends of different rainfall intensities and the associated spatiotemporal variations during 1958–2016 in Guangxi, China[J]. International Journal of Climatology,2021,41(S1):E2880-E2895.
APA Qin, Nian Xiu,Wang, Jun Neng,Gao, Liang,Hong, Yang,Huang, Jia Li,&Lu, Qin Qin.(2021).Observed trends of different rainfall intensities and the associated spatiotemporal variations during 1958–2016 in Guangxi, China.International Journal of Climatology,41(S1),E2880-E2895.
MLA Qin, Nian Xiu,et al."Observed trends of different rainfall intensities and the associated spatiotemporal variations during 1958–2016 in Guangxi, China".International Journal of Climatology 41.S1(2021):E2880-E2895.
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