干旱区生态环境知识资源中心(Arid): Accuracy of agricultural drought indices and analysis of agricultural drought characteristics in China between 2000 and 2019

Arid

DOI	10.1016/j.agwat.2023.108305
	Accuracy of agricultural drought indices and analysis of agricultural drought characteristics in China between 2000 and 2019
	Pan, Ying; Zhu, Yonghua; Lue, Haishen; Yagci, Ali Levent; Fu, Xiaolei; Liu, En; Xu, Haiting; Ding, Zhenzhou; Liu, Ruoyu
通讯作者	Zhu, YH
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2023
卷号	283
英文摘要	Agricultural drought threatens global water security, food security, and natural ecosystems. Accurate identifi-cation of agricultural drought is a crucial task to mitigate its consequences. However, it is challenging to achieve reliable and accurate regional agricultural drought assessment in both wet and dry climates at the same time. Therefore, the objective of this study is to identify a reliable and accurate agricultural drought index that per -forms well in both dry and wet climates. Drought indices such as the Standardized Precipitation Index (SPI), the Vegetation Condition Index (VCI), the Soil Moisture Anomaly index (SMA), and the Drought Severity Index (DSI) were calculated and compared against in situ drought information devised by official sources in China. The results showed that: (1) DSI based on the Global Land Data Assimilation System (GLDAS) products performed the best in identifying agricultural drought in both dry and wet climate regions of China. (2) Agricultural regions such as Northern arid and semiarid regions, Northeast China Plain, Huang-Huai-Hai Plain, and Loess Plateau, experienced moderate and severe agricultural droughts with a frequency of 20%. (3) The frequency of agri-cultural droughts observed in Northern arid and semi-arid regions and Northeast China Plain has slowed significantly over the last two decades with a significance level of 0.01. On the other hand, the number of agricultural droughts has increased in Yunnan-Guizhou Plateau since 2002.
英文关键词	Agricultural drought Soil moisture GLDAS Drought severity index Drought frequency China
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000984075800001
WOS关键词	SOIL-MOISTURE ; IN-SITU ; HYDROLOGICAL DROUGHTS ; DATA ASSIMILATION ; CLIMATE-CHANGE ; IMPACTS ; VARIABILITY ; VALIDATION ; VEGETATION ; FRAMEWORK
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395063
推荐引用方式 GB/T 7714	Pan, Ying,Zhu, Yonghua,Lue, Haishen,et al. Accuracy of agricultural drought indices and analysis of agricultural drought characteristics in China between 2000 and 2019[J],2023,283.
APA	Pan, Ying.,Zhu, Yonghua.,Lue, Haishen.,Yagci, Ali Levent.,Fu, Xiaolei.,...&Liu, Ruoyu.(2023).Accuracy of agricultural drought indices and analysis of agricultural drought characteristics in China between 2000 and 2019.AGRICULTURAL WATER MANAGEMENT,283.
MLA	Pan, Ying,et al."Accuracy of agricultural drought indices and analysis of agricultural drought characteristics in China between 2000 and 2019".AGRICULTURAL WATER MANAGEMENT 283(2023).