Temporal and spatial evolution of the standardized precipitation evapotranspiration index (SPEI) in the Loess Plateau under climate change from 2001 to 2050

doi:10.1016/j.scitotenv.2017.03.226

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	Temporal and spatial evolution of the standardized precipitation evapotranspiration index (SPEI) in the Loess Plateau under climate change from 2001 to 2050
	Gao, Xuerui 2; Zhao, Qi 1; Zhao, Xining 2; Pan, Wenxiang 1; Gao, Xiaodong 2; Sun, Miao 1; Zhao, XN (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Wu, Pute 2
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017
卷号	595 页码:191-200
关键词	Drought Precipitation Potential Evapotranspiration Spei Climate Change Loess Plateau
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2017.03.226
文献子类	Article
英文摘要	Loess Plateau has great uncertainty on drought occurrence due to climate change. This paper analyzes the evolution of precipitation, potential evapotranspiration and standardized precipitation evapotranspiration index (SPEI) based on the Coupled Model Inter-comparison Project Phase 5 (CMIP5) data and regional downscaling model (RegCM4.0). Results indicate that, under RCP2.6 Scenario, the precipitation will increase significantly (5% confidence level) at the rate of 16.40 mm/10 a. However, the potential evapotranspiration is showing nonsignificant decreasing trend at the rate of 2.16mm/10 a. Moreover, the SPEI will decrease in the south and northernmost area and increase in the central northern area of Loess Plateau. Under RCP8.5 Scenario, the precipitation will increase significantly (5% confidence level) at the rate of 19.12 mm/10 a. The potential evapotranspiration will non-significantly decrease at the rate of 2.16 mm/10 a and the SPEI is showing increasing trend almost in the whole Loess Plateau. Generally, Loess Plateau is becoming wetter in the central part under RCP2.6 Scenario and the wet area will be enlarged to almost the whole plateau under RCP8.5 Scenario. Based on the results, the water resources will increase under global warming, which may alleviate the water scarcity issue in the Loess Plateau. (C) 2017 Published by Elsevier B.V.
学科主题	Environmental Sciences & Ecology
URL标识	查看原文
出版地	AMSTERDAM
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000401556800021
资助机构	National Natural Science Foundation of China [51409275, 1409078, 51309246]; Natural Science Basic Research Plan in Shaanxi Province of China [2016JQ5076]; Ph. D Start-up Fund of Northwest AF University [2452016215]; National Key Research and Development Program of China [2016YFC0401301, 2016YFC0400204] ; National Natural Science Foundation of China [51409275, 1409078, 51309246]; Natural Science Basic Research Plan in Shaanxi Province of China [2016JQ5076]; Ph. D Start-up Fund of Northwest AF University [2452016215]; National Key Research and Development Program of China [2016YFC0401301, 2016YFC0400204] ; National Natural Science Foundation of China [51409275, 1409078, 51309246]; Natural Science Basic Research Plan in Shaanxi Province of China [2016JQ5076]; Ph. D Start-up Fund of Northwest AF University [2452016215]; National Key Research and Development Program of China [2016YFC0401301, 2016YFC0400204] ; National Natural Science Foundation of China [51409275, 1409078, 51309246]; Natural Science Basic Research Plan in Shaanxi Province of China [2016JQ5076]; Ph. D Start-up Fund of Northwest AF University [2452016215]; National Key Research and Development Program of China [2016YFC0401301, 2016YFC0400204]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7920]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Zhao, XN (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, Coll Water Resources & Architectural Engn, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gao, Xuerui,Zhao, Qi,Zhao, Xining,et al. Temporal and spatial evolution of the standardized precipitation evapotranspiration index (SPEI) in the Loess Plateau under climate change from 2001 to 2050[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,595:191-200.
APA	Gao, Xuerui.,Zhao, Qi.,Zhao, Xining.,Pan, Wenxiang.,Gao, Xiaodong.,...&Wu, Pute.(2017).Temporal and spatial evolution of the standardized precipitation evapotranspiration index (SPEI) in the Loess Plateau under climate change from 2001 to 2050.SCIENCE OF THE TOTAL ENVIRONMENT,595,191-200.
MLA	Gao, Xuerui,et al."Temporal and spatial evolution of the standardized precipitation evapotranspiration index (SPEI) in the Loess Plateau under climate change from 2001 to 2050".SCIENCE OF THE TOTAL ENVIRONMENT 595(2017):191-200.