Systematic Analysis of Periodic Vegetation Patterns.
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- Okayasu Tomoo
- Graduate School of Science and Engineering, Waseda University, Tokyo 169-8555 Japan
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- Aizawa Yoji
- School of Science and Engineering, Waseda University, Tokyo 169-8555, Japan
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Description
Spatially periodic vegetation patterns are observed in many semiarid regions. They are classified according to their symmetry as vegetation stripes on hillsides or spotted patterns on flat ground. We propose a simple model based on the interactions among water, soil and vegetation, which gives a systematic description of the variety of vegetation patterns. First, it describes most characteristics of vegetation stripes investigated in field observations and agrees with the hypothesized origin of vegetation stripes deduced from field observations, the spatially heterogeneous infiltration rate of surface water into soil. Moreover, it indicates that spotted patterns emerge from the same dynamics. Second, the pattern selection derived from the model is consistent with that found in real phenomena, i.e. predominantly bare ground with spotted vegetation in the most severe environments, banded patterns in intermediate environments and nearly continuous vegetation with spotted bare ground in the most favorable environments.
Journal
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- Progress of Theoretical Physics
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Progress of Theoretical Physics 106 (4), 705-720, 2001
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679135417728
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- NII Article ID
- 110001200973
- 210000110817
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- NII Book ID
- AA00791455
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- BIBCODE
- 2001PThPh.106..705O
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- ISSN
- 13474081
- 0033068X
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- NDL BIB ID
- 5963465
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed