干旱区生态环境知识资源中心(Arid): Crop production in the Hexi Corridor challenged by future climate change

Arid

DOI	10.1016/j.jhydrol.2019.124197
	Crop production in the Hexi Corridor challenged by future climate change
	Fu, Jing 1,2; Niu, Jun 1,2; Kang, Shaozhong 1,2; Adeloye, Adebayo J.3; Du, Taisheng 1,2
通讯作者	Niu, Jun
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	579
英文摘要	Drought is one of the costliest natural hazards and the main factor of concern impacting crop growth in the arid Hexi Corridor in Northwest China. However, the inter-relationship between meteorological drought severity and crop yield is seldom studied across this region. In this study, two multi-scalar drought indices: the Standardized Precipitation Index (SPI) and the Standardized Precipitation-Evapotranspiration Index (SPEI) are employed to monitor the evolution of drought condition in the Hexi Corridor. We examined (a) the historical drought evolution of the He'd Corridor since 19705; (b) the possible future drought tendency under different RCP scenarios; and (c) the multi-scale correlation between climatic crop yield and drought indices. The results indicate that the studied area experienced a trend towards warmer and wetter conditions during the last 4 decades and this trend last until the middle 2030s indicated by SPEI. The feasibility of SPEI and SPI for quantifying drought condition and evaluating production loss was tested in the arid and semi-arid regions of northwest of China and SPEI was found more reliable. Correlation analysis between climatic yield and drought indices revealed that the drought condition of the month July detected by 3-month SPEI was the most relevant for the observed changes in climate yield in the Hexi Corridor. By obtaining the critical point of each SPEI-climatic yield curve, we found the different levels of yield vulnerability for the four selected districts, according to which we are able to gain an early prediction of the crop production crisis corresponding to the future drought events.
英文关键词	Drought SPI SPEI Crop yield Climate change
类型	Article
语种	英语
国家	Peoples R China ; Scotland
收录类别	SCI-E
WOS记录号	WOS:000500371200066
WOS关键词	RIVER-BASIN ; DROUGHT ; YIELD ; WHEAT ; CLASSIFICATION ; VARIABILITY ; EVOLUTION ; IMPACTS ; REGIMES ; TRENDS
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
EI主题词	2019-12-01
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311422
作者单位	1.China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China; 2.Minist Agr & Rural Affairs, Wuwei Expt Stn Efficient Water Use Agr, Wuwei 733000, Peoples R China; 3.Heriot Watt Univ, Inst Infrastruct & Environm, Edinburgh EH14 4AS, Midlothian, Scotland
推荐引用方式 GB/T 7714	Fu, Jing,Niu, Jun,Kang, Shaozhong,et al. Crop production in the Hexi Corridor challenged by future climate change[J]. 中国农业大学,2019,579.
APA	Fu, Jing,Niu, Jun,Kang, Shaozhong,Adeloye, Adebayo J.,&Du, Taisheng.(2019).Crop production in the Hexi Corridor challenged by future climate change.JOURNAL OF HYDROLOGY,579.
MLA	Fu, Jing,et al."Crop production in the Hexi Corridor challenged by future climate change".JOURNAL OF HYDROLOGY 579(2019).