气候变化领域集成服务门户(CCPortal): Drought frequency characteristics of China; 1981–2019; based on the vegetation health index

CCPortal

DOI	10.3354/CR01616
	Drought frequency characteristics of China; 1981–2019; based on the vegetation health index
	Zeng J.; Zhang R.; Lin Y.; Wu X.; Tang J.; Guo P.; Li J.; Wang Q.
发表日期	2020
ISSN	0936-577X
起始页码	131
结束页码	147
卷号	81
英文摘要	Droughts—major natural disasters with a complex development and evolution process—cause enormous losses for society, especially in the agriculture sector. We analyzed the spatiotemporal evolution of drought frequency in China at grid level during 1981–2019 with the nonparametric Mann-Kendall trend method, using a high temporal resolution vegetation health index dataset at week-scale. Results suggest the that (1) after entering the 21st century, China’s drought-affected area has declined, with Northeast China being the least affected region and Northwest China being the most severely affected; (2) the spatial pattern of drought characteristics in China is polarized, and the frequency of droughts has generally declined, with the most prominent intensity and frequency observed in some urbanized and economically developed regions; and (3) although the changes to the drought characteristics and frequency in China provide a generally optimistic picture, drought intensity and frequency in some developed regions have increased significantly, and the future trend predictions for these areas are less positive. This study, focusing on the spatiotemporal characteristics and evolution of drought patterns, with the aim of raising awareness of drought disasters, can help mitigate and prevent the damage caused by droughts to society, and can provide a scientific basis for drought early-warning systems and risk management in China going forward. © Inter-Research 2020 · www.int-res.com.
英文关键词	Change trend; China; Drought frequency; Drought intensity; Spatiotemporal patterns; Vegetation health index; VHI
语种	英语
scopus关键词	climate prediction; data set; drought; early warning system; frequency analysis; index method; natural disaster; risk assessment; spatiotemporal analysis; vegetation index; China
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146879
作者单位	Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Protection, College of Environment and Resource, Fuzhou University, Fuzhou, 350116, China; Key Lab of Spatial Data Mining & Information Sharing, Ministry of Education of China, Fuzhou, 350116, China; School of Ecology & Environment, Hainan University, Haikou, 570000, China; College of Geography and Tourism, Anhui Normal University, Wuhu, 241000, China; Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland, College Park, MD 20740, United States
推荐引用方式 GB/T 7714	Zeng J.,Zhang R.,Lin Y.,等. Drought frequency characteristics of China; 1981–2019; based on the vegetation health index[J],2020,81.
APA	Zeng J..,Zhang R..,Lin Y..,Wu X..,Tang J..,...&Wang Q..(2020).Drought frequency characteristics of China; 1981–2019; based on the vegetation health index.Climate Research,81.
MLA	Zeng J.,et al."Drought frequency characteristics of China; 1981–2019; based on the vegetation health index".Climate Research 81(2020).