Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1103/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
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ISSN | 2470-0045 |
EISSN | 2470-0053 |
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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