| Autor: |
Hou, Li-Feng, Gao, Shu-Peng, Sun, Gui-Quan |
| Zdroj: |
Nonlinear Dynamics; Apr2023, Vol. 111 Issue 8, p7883-7898, 16p |
| Abstrakt: |
The fairy circle patterns observed in arid or semiarid areas are referred as ecological miracle, and the formation mechanisms of these beautiful landscape have triggered a protracted debate across disciplines. Nonetheless, the types of fairy circles and their robustness are not fully understood. In this work, we studied a vegetation–water model and discovered two types of pattern structures, namely transient and persistent fairy circles. We found that the transient fairy circle is more favorable to vegetation growth than the persistent one through theoretical analysis and numerical calculations. Additionally, the transient fairy circle can serve as an early warning signal of environmental degradation. The obtained results systematically distinguish between transient and persistent patterns, and demonstrate how well pattern structures are connected to ecosystem functions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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