气候变化领域集成服务门户(CCPortal): Regime shift of the hydroclimate-vegetation system in the Yellow River Delta of China from 1982 through 2015

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DOI	10.1088/1748-9326/ab6561
	Regime shift of the hydroclimate-vegetation system in the Yellow River Delta of China from 1982 through 2015
	Niu B.; Zhang Z.; Yu X.; Li X.; Wang Z.; Loaíciga H.A.; Peng S.
发表日期	2020
ISSN	17489318
卷号	15 期号:2
英文摘要	The Yellow River Delta (YRD) has been experiencing substantial climatic, hydrological, and anthropogenic stresses, and a sound understanding of the regime shift in its hydroclimate-vegetation system is of fundamental importance for maintaining the health and stability of its regional ecosystems. This study constructs and analyzes a 34-year-dataset (1982-2015) of hydro-climatic variables and satellite-based Normalized Difference Vegetation Index (NDVI) in the YRD. A seasonal-trend decomposition technique based on loess (STL), and a structural change analysis were coupled to detect regime shifts of regional hydroclimate and vegetation in the YRD from 1982 through to 2015. During this period the YRD exhibited a significant warmer-drier-greening trend and experienced four regime shifts of its hydroclimate-vegetation system, with the four shift periods roughly centered in 1989, 1998, 2004, and 2012. Partial correlation analysis revealed that temperature was the dominant factor promoting vegetative growth in spring and autumn (all PNDVI-TEM greater than 0.65), and streamflow impacted the NDVI mainly in summer. Temperature and precipitation were the dominant controls of vegetative growth during the growing season prior to 2002, and thereafter precipitation and streamflow alternately became the main moisture-influencing factors of vegetative growth. Streamflow played an important complementary role on vegetative growth, particularly in near riverine areas when drought exceeds a certain threshold. Additionally, climate shifts determined the changing trend of NDVI across the region, while the effect of land use change is localized and predominant in the northeastern part of the study region. These findings offer an insight into appropriate water regulation of the Yellow River and on climatic adaptation within the YRD. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	hydroclimate-vegetation system; regime shift; structural change; time series decomposition; Yellow River Delta
语种	英语
scopus关键词	Climate change; Correlation methods; Land use; Rivers; Stream flow; Regime shift; structural change; Time series decomposition; Vegetation systems; Yellow River delta; Vegetation; drought; growing season; growth; hydrometeorology; land use change; NDVI; precipitation (climatology); seasonal variation; spatiotemporal analysis; streamflow; temperature effect; China; Shandong; Yellow River Delta
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154107
作者单位	College of Resources and Environment, Shandong Agricultural University, Taian, 271018, China; School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430079, China; Department of Geography, University of California, Santa Barbara, CA 93106, United States; School of Low Carbon Economics, Hubei University of Economics, Wuhan, 430205, China
推荐引用方式 GB/T 7714	Niu B.,Zhang Z.,Yu X.,et al. Regime shift of the hydroclimate-vegetation system in the Yellow River Delta of China from 1982 through 2015[J],2020,15(2).
APA	Niu B..,Zhang Z..,Yu X..,Li X..,Wang Z..,...&Peng S..(2020).Regime shift of the hydroclimate-vegetation system in the Yellow River Delta of China from 1982 through 2015.Environmental Research Letters,15(2).
MLA	Niu B.,et al."Regime shift of the hydroclimate-vegetation system in the Yellow River Delta of China from 1982 through 2015".Environmental Research Letters 15.2(2020).