DOI: 10.1002/2013GL058797
论文题名: Vegetation pattern formation in semiarid systems without facilitative mechanisms
作者: Martínez-García R. ; Calabrese J.M. ; Hernández-García E. ; Lõpez C.
刊名: Geophysical Research Letters
ISSN: 0094-8336
EISSN: 1944-8067
出版年: 2013
卷: 40, 期: 23 起始页码: 6143
结束页码: 6147
语种: 英语
英文关键词: nonlinear partial differential equations
; pattern formation
; vegetation models
Scopus关键词: Kernel function
; Nonlinear partial differential equations
; Pattern formation
; Semi-arid ecosystems
; Spatial structure
; Vegetation model
; Vegetation pattern
; Vegetation pattern formations
; Earth sciences
; Geophysics
; Vegetation
; ecological modeling
; facilitation
; interspecific competition
; semiarid region
; spatial analysis
; vegetation structure
英文摘要: Regular vegetation patterns in semiarid ecosystems are believed to arise from the interplay between long-range competition and facilitation processes acting at smaller distances. We show that, under rather general conditions, long-range competition alone may be enough to shape these patterns. To this end we propose a simple, general model for the dynamics of vegetation, which includes only long-range competition between plants. Competition is introduced through a nonlocal term, where the kernel function quantifies the intensity of the interaction. We recover the full spectrum of spatial structures typical of vegetation models that also account for facilitation in addition to competition. Key Points Spatial vegetation model only considering long-range competition for water. The model does not consider short-range facilitation. Patterns in the system are determined by the kernel competition function. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891623209&doi=10.1002%2f2013GL058797&partnerID=40&md5=edd9be93200d0a079988f1ca6d757edc
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5600
Appears in Collections: 气候减缓与适应
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作者单位: Instituto de Física Interdisciplinar y Sistemas Complejos (CSIC-UIB), Campus Universitat Illes Balears, Crta. Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
Recommended Citation:
Martínez-García R.,Calabrese J.M.,Hernández-García E.,et al. Vegetation pattern formation in semiarid systems without facilitative mechanisms[J]. Geophysical Research Letters,2013-01-01,40(23).