Arid
DOI10.1103/PhysRevE.91.012903
Reversing desertification as a spatial resonance problem
Mau, Yair1,2; Haim, Lev1,3; Meron, Ehud1,4
通讯作者Mau, Yair
来源期刊PHYSICAL REVIEW E
ISSN2470-0045
EISSN2470-0053
出版年2015
卷号91期号:1
英文摘要

An important environmental application of pattern control by periodic spatial forcing is the restoration of vegetation patterns in water-limited ecosystems that went through desertification. Vegetation restoration is often based on periodic landscape modulations that intercept overland water flow and form favorable conditions for vegetation growth. Viewing this method as a spatial resonance problem, we show that plain realizations of this method, assuming a complete vegetation response to the imposed modulation pattern, suffer from poor resilience to rainfall variability. By contrast, less intuitive realizations, based on the inherent spatial modes of vegetation growth and involving partial vegetation implantation, can be highly resilient and equally productive. We derive these results using two complementary models, a realistic vegetation model, and a simple pattern formation model that lends itself to mathematical analysis and highlights the universal aspects of the behaviors found with the vegetation model. We focus on reversing desertification as an outstanding environmental problem, but the main conclusions hold for any spatially forced system near the onset of a finite-wave-number instability that is subjected to noisy conditions.


类型Article
语种英语
国家Israel ; USA
收录类别SCI-E
WOS记录号WOS:000347925400012
WOS关键词COMMENSURATE-INCOMMENSURATE TRANSITION ; CONVECTION ; PATTERNS ; SYSTEMS ; LAYER
WOS类目Physics, Fluids & Plasmas ; Physics, Mathematical
WOS研究方向Physics
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/189581
作者单位1.Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel;
2.Duke Univ, Dept Civil & Environm Engn, Durham, NC 27708 USA;
3.Soroka Univ, Med Ctr, Dept Oncol, IL-84101 Beer Sheva, Israel;
4.Ben Gurion Univ Negev, Blaustein Inst Desert Res, Dept Solar Energy & Environm Phys, IL-84990 Sede Boqer Campus, Israel
推荐引用方式
GB/T 7714
Mau, Yair,Haim, Lev,Meron, Ehud. Reversing desertification as a spatial resonance problem[J]. Ben-Gurion University of the Negev,2015,91(1).
APA Mau, Yair,Haim, Lev,&Meron, Ehud.(2015).Reversing desertification as a spatial resonance problem.PHYSICAL REVIEW E,91(1).
MLA Mau, Yair,et al."Reversing desertification as a spatial resonance problem".PHYSICAL REVIEW E 91.1(2015).
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