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Localized vegetation patches: a self-organized response to resource scarcity
O Lejeune1, M Tlidi, P Couteron
1Faculté des Sciences, Code Postal 231, Université Libre de Bruxelles, B-1050 Bruxelles, Belgium.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|September 21, 2002
Abstract:
We show that spatial self-organization allows vegetation to survive greater resource limitation. Isolated vegetation patches observed in nutrient-poor territories of South America and West Africa are interpreted as localized structures arising from the bistability between the bare state and the patchy vegetation state.