干旱区生态环境知识资源中心(Arid): Joint multiscale dynamics in soil-vegetation-atmosphere systems: Multifractal cross-correlation analysis of arid and semiarid rangelands

Arid

DOI	10.1002/vzj2.20374
	Joint multiscale dynamics in soil-vegetation-atmosphere systems: Multifractal cross-correlation analysis of arid and semiarid rangelands
	Sanz, Ernesto; Almeida-Naulay, Andres F.; Diaz-Ambrona, Carlos G. H.; Minguez, Sergio Zubelzu; Tarquis, Ana M.
通讯作者	Sanz, E
来源期刊	VADOSE ZONE JOURNAL
EISSN	1539-1663
出版年	2024
英文摘要	Understanding the dynamics of the soil-vegetation-atmosphere (SVA) system, particularly in arid and semiarid regions, remains challenging due to its intricate and interdependent nature. This system creates problems for rangeland administration, such as insurance and risk management. This paper focuses on the complex interactions within the SVA system, particularly on rangeland ecosystems in Spain's semiarid and arid regions. By employing multifractal detrended cross-correlation analysis (MFCCA), we explore the joint behavior of key variables, including precipitation (PCP), evapotranspiration (ETP), aridity index (Arid. I.), soil water availability (SWA), biomass (Bio), and normalized difference vegetation index (NDVI). Analyzing a 20-year data series from Madrid and Almeria provinces, we reveal distinct patterns in the studied variables' persistence, multifractality, and asymmetry. Notably, the differences in the generalized Hurst exponents (hxy${{{\mathrm{h}}}_{xy}}$(q)) between Madrid and Almeria for SWA with NDVI, SWA with Bio, and NDVI with Bio underscore distinct interactions in these regions. Moreover, multifractal analyses unveil differences in the complexity of joint variables' behaviors in the two regions. Almeria exhibits higher multifractality across variables, indicating more complex and variable environmental interactions, likely due to its more arid conditions. These findings suggest that Almeria has more sensitivity to changes, requiring adaptive management strategies, while in Madrid, water availability and related variables play a more dominant role in driving vegetation dynamics. These findings shed light through MFCCA on the nuanced dynamics of rangeland ecosystems in semiarid and arid regions, emphasizing the importance of considering complexity-based approaches to understand the intricate interplay among key variables in the SVA system. We show multifractal detrended cross-correlation analysis as a tool to describe joint and complex dynamics. Differences are found in the ecological interaction between arid and semiarid rangelands. Cross-correlated and average univariate analyses provide differences in multifractal parameters. Almeria shows higher multifractality, indicating more complex and variable environmental interactions. Soil water availability patterns influence normalized difference vegetation index and biomass dynamics more in Madrid than in Almeria. Ecosystems are highly interacting systems, where some changes can produce surprising outcomes (complex systems). This study explores the relationships among various ecological components of rangelands in Madrid and Almeria (Spain) to aid rangeland managers. Using multifractal analysis, which studies the behavior of time series, we compare the behavior and the influence of different environmental factors like precipitation or biomass. Our findings show that Almeria, with its more arid conditions, has more complex and variable environmental interactions and is more sensitive to small changes. While in Madrid, soil water availability has a stronger influence on vegetation growth. These insights suggest that rangeland management strategies should be tailored to the specific conditions of each region to improve sustainability and productivity. Almeria should prioritize enhancing soil water retention and in Madrid, managers should focus on monitoring larger scale climatic events.
类型	Review ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001303651600001
WOS关键词	DETRENDED FLUCTUATION ANALYSIS ; PATTERNS ; PULSES ; CARBON ; CHINA
WOS类目	Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405833
推荐引用方式 GB/T 7714	Sanz, Ernesto,Almeida-Naulay, Andres F.,Diaz-Ambrona, Carlos G. H.,et al. Joint multiscale dynamics in soil-vegetation-atmosphere systems: Multifractal cross-correlation analysis of arid and semiarid rangelands[J],2024.
APA	Sanz, Ernesto,Almeida-Naulay, Andres F.,Diaz-Ambrona, Carlos G. H.,Minguez, Sergio Zubelzu,&Tarquis, Ana M..(2024).Joint multiscale dynamics in soil-vegetation-atmosphere systems: Multifractal cross-correlation analysis of arid and semiarid rangelands.VADOSE ZONE JOURNAL.
MLA	Sanz, Ernesto,et al."Joint multiscale dynamics in soil-vegetation-atmosphere systems: Multifractal cross-correlation analysis of arid and semiarid rangelands".VADOSE ZONE JOURNAL (2024).