干旱区生态环境知识资源中心(Arid): Generalized Structure Functions and Multifractal Detrended Fluctuation Analysis Applied to Vegetation Index Time Series: An Arid Rangeland Study

Arid

DOI	10.3390/e23050576
	Generalized Structure Functions and Multifractal Detrended Fluctuation Analysis Applied to Vegetation Index Time Series: An Arid Rangeland Study
	Sanz, Ernesto; Saa-Requejo, Antonio; Diaz-Ambrona, Carlos H.; Ruiz-Ramos, Margarita; Rodriguez, Alfredo; Iglesias, Eva; Esteve, Paloma; Soriano, Barbara; Tarquis, Ana M.
通讯作者	Sanz, E (corresponding author), Univ Politecn Madrid, CEIGRAM, Madrid 28040, Spain. ; Sanz, E (corresponding author), Univ Politecn Madrid, Grp Sistemas Complejos, Madrid 28040, Spain.
来源期刊	ENTROPY
EISSN	1099-4300
出版年	2021
卷号	23 期号:5
英文摘要	Estimates suggest that more than 70% of the world's rangelands are degraded. The Normalized Difference Vegetation Index (NDVI) is commonly used by ecologists and agriculturalists to monitor vegetation and contribute to more sustainable rangeland management. This paper aims to explore the scaling character of NDVI and NDVI anomaly (NDVIa) time series by applying three fractal analyses: generalized structure function (GSF), multifractal detrended fluctuation analysis (MF-DFA), and Hurst index (HI). The study was conducted in four study areas in Southeastern Spain. Results suggest a multifractal character influenced by different land uses and spatial diversity. MF-DFA indicated an antipersistent character in study areas, while GSF and HI results indicated a persistent character. Different behaviors of generalized Hurst and scaling exponents were found between herbaceous and tree dominated areas. MF-DFA and surrogate and shuffle series allow us to study multifractal sources, reflecting the importance of long-range correlations in these areas. Two types of long-range correlation appear to be in place due to short-term memory reflecting seasonality and longer-term memory based on a time scale of a year or longer. The comparison of these series also provides us with a differentiating profile to distinguish among our four study areas that can improve land use and risk management in arid rangelands.
英文关键词	NDVI multiscaling generalized structure function detrended fluctuation analysis grassland
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000653889300001
WOS关键词	SPATIOTEMPORAL DYNAMICS ; MONGOLIAN PLATEAU ; SPATIAL-PATTERNS ; FISHER-SHANNON ; NDVI ; PRODUCTIVITY ; BIODIVERSITY ; DEGRADATION ; DROUGHT ; BIOMASS
WOS类目	Physics, Multidisciplinary
WOS研究方向	Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368813
作者单位	[Sanz, Ernesto; Saa-Requejo, Antonio; Diaz-Ambrona, Carlos H.; Ruiz-Ramos, Margarita; Rodriguez, Alfredo; Iglesias, Eva; Esteve, Paloma; Soriano, Barbara; Tarquis, Ana M.] Univ Politecn Madrid, CEIGRAM, Madrid 28040, Spain; [Sanz, Ernesto; Tarquis, Ana M.] Univ Politecn Madrid, Grp Sistemas Complejos, Madrid 28040, Spain; [Saa-Requejo, Antonio] Univ Politecn Madrid, Evaluac Recursos Nat, ETSI Agron Alimentaria & Biosistemas, Madrid 28040, Spain; [Diaz-Ambrona, Carlos H.; Ruiz-Ramos, Margarita] Univ Politecn Madrid, AgSyst, ETSI Agron Alimentaria & Biosistemas, Madrid 28040, Spain; [Rodriguez, Alfredo] Univ Castilla La Mancha, Dept Anal Econ & Finanzas, Toledo 45071, Spain; [Iglesias, Eva; Esteve, Paloma; Soriano, Barbara] Univ Politecn Madrid, ETSI Agron Alimentaria & Biosistemas, Econ Agr & Gest Recursos Nat, Madrid 28040, Spain
推荐引用方式 GB/T 7714	Sanz, Ernesto,Saa-Requejo, Antonio,Diaz-Ambrona, Carlos H.,et al. Generalized Structure Functions and Multifractal Detrended Fluctuation Analysis Applied to Vegetation Index Time Series: An Arid Rangeland Study[J],2021,23(5).
APA	Sanz, Ernesto.,Saa-Requejo, Antonio.,Diaz-Ambrona, Carlos H..,Ruiz-Ramos, Margarita.,Rodriguez, Alfredo.,...&Tarquis, Ana M..(2021).Generalized Structure Functions and Multifractal Detrended Fluctuation Analysis Applied to Vegetation Index Time Series: An Arid Rangeland Study.ENTROPY,23(5).
MLA	Sanz, Ernesto,et al."Generalized Structure Functions and Multifractal Detrended Fluctuation Analysis Applied to Vegetation Index Time Series: An Arid Rangeland Study".ENTROPY 23.5(2021).