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Impacts of climate change on aridity index and its spatiotemporal variation in the Loess Plateau of China, from 1961 to 2014
Wen, Ming1; Cheng, Dandong2,3; Song, Jinxi1,2; Zhang, Guotao3,4; Lai, Wenli5; Jiang, Weiwei5
2018-02-01
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume77Issue:4Pages:137
SubtypeArticle
Contribution Rank4
AbstractThe Loess Plateau, the transitional zone between humid and arid regions of China, is an important region to examine the regional hydrological cycle and variation in humid and arid regions under global climate change. Aridity index (AI), the ratio of precipitation (P) to potential evapotranspiration (ET0), is an important indicator of regional climate conditions and is also used to classify drylands. In this study, data from 51 national meteorological stations during the period of 1961-2014 were collected to estimate the AI in the Loess Plateau. Results show that a downward trend in annual AI was detected and the boundary of the drylands region based on the AI was expanded across the Loess Plateau over the period of 1961-2014. The spatiotemporal variability of P was the main cause in the AI variations. Furthermore, data analysis suggested the occurrences of the extreme minimum AI values were mostly affected by fluctuations of the two factors (ET0 and P) rather than its corresponding trend during the period. Thus, this study indicated the major driving factor of AI and the relationship between extreme AI values and the global climate anomalies in the Loess Plateau region, and meanwhile, provided an understanding of the impacts of climate change on hydrological cycle in the Loess Plateau of China.
KeywordAridity index Potential evapotranspiration Drylands Climate change The Loess Plateau
DOI10.1007/s12665-018-7304-y
Indexed BySCI
WOS KeywordYELLOW-RIVER BASIN ; REFERENCE EVAPOTRANSPIRATION ; SENSITIVITY ; TRENDS ; EVAPORATION ; VARIABLES ; REGION ; TESTS
Language英语
Funding ProjectProgram for Key Science and Technology Innovation Team in Shaanxi Province[2014KCT-27] ; National Natural Science Foundation of China[51679200] ; National Natural Science Foundation of China[51379175] ; Hundred Talents Project of the Chinese Academy of Sciences[A315021406]
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000426755300020
Funding OrganizationProgram for Key Science and Technology Innovation Team in Shaanxi Province ; National Natural Science Foundation of China ; Hundred Talents Project of the Chinese Academy of Sciences
PublisherSPRINGER
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/22863
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorSong, Jinxi
Affiliation1.Northwest Univ Xian, Shaanxi Key Lab Earth Surface Syst & Environm Car, Coll Urban & Environm Sci, Xian 710127, Shaanxi, Peoples R China;
2.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China;
5.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Wen, Ming,Cheng, Dandong,Song, Jinxi,et al. Impacts of climate change on aridity index and its spatiotemporal variation in the Loess Plateau of China, from 1961 to 2014[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(4):137.
APA Wen, Ming,Cheng, Dandong,Song, Jinxi,Zhang, Guotao,Lai, Wenli,&Jiang, Weiwei.(2018).Impacts of climate change on aridity index and its spatiotemporal variation in the Loess Plateau of China, from 1961 to 2014.ENVIRONMENTAL EARTH SCIENCES,77(4),137.
MLA Wen, Ming,et al."Impacts of climate change on aridity index and its spatiotemporal variation in the Loess Plateau of China, from 1961 to 2014".ENVIRONMENTAL EARTH SCIENCES 77.4(2018):137.
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