干旱区生态环境知识资源中心(Arid): A new reaction-diffusion-advection model with long-range inhibition for vegetation-desertification pattern-formation as a unified approach

Arid

DOI	10.1016/j.ecolmodel.2024.110722
	A new reaction-diffusion-advection model with long-range inhibition for vegetation-desertification pattern-formation as a unified approach
	Franco, Rebeca; Morales, Marco A.; Rodriguez-Mora, J. Isrrael; Agustin-Serrano, Ricardo
通讯作者	Agustín-Serrano, R
来源期刊	ECOLOGICAL MODELLING
ISSN	0304-3800
EISSN	1872-7026
出版年	2024
卷号	492
英文摘要	This work proposes a new mathematical model for reproducing desertification and vegetation patterns existing in nature. The model consists of two nonlinear partial differential equations. One of them describes the spatiotemporal dynamic of vegetation in an analogous way to Lefever ' s model, while Hardenberg ' s model describes precipitation dynamics. The model ' s equations are solved using a numerical-functional difference method for the spatio-temporal terms. The numerical results reproduce various bi-dimensional (2D) patterns observed in waterlimited regions, including stripes, spots, hollows, and labyrinths. 2D patterns with these morphologies are characterized by their Fourier spectra and quantified their fractal dimensions. The numerical solutions of the model also predict transitions from bare soil at low precipitation to homogeneous vegetation at high rainfalls. These results reveal an underlying mechanism for the local desertification process and the vegetation selforganization distribution, broad context of matter order-disorder transitions. The proposed model even reproduces the desertification patterns for local instabilities of the hydrodynamic type beyond the instability induced by diffusion, which suggests that it is a reduced mathematical model with a unifying general framework for patterns found in nature.
英文关键词	Desertification Vegetation patterns Turing-instability Ecohydrology Hydroecology
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001235146600001
WOS关键词	SELF-ORGANIZATION ; REGIME SHIFTS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403445
推荐引用方式 GB/T 7714	Franco, Rebeca,Morales, Marco A.,Rodriguez-Mora, J. Isrrael,et al. A new reaction-diffusion-advection model with long-range inhibition for vegetation-desertification pattern-formation as a unified approach[J],2024,492.
APA	Franco, Rebeca,Morales, Marco A.,Rodriguez-Mora, J. Isrrael,&Agustin-Serrano, Ricardo.(2024).A new reaction-diffusion-advection model with long-range inhibition for vegetation-desertification pattern-formation as a unified approach.ECOLOGICAL MODELLING,492.
MLA	Franco, Rebeca,et al."A new reaction-diffusion-advection model with long-range inhibition for vegetation-desertification pattern-formation as a unified approach".ECOLOGICAL MODELLING 492(2024).