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首页> 外文期刊>International Journal of Quantum Chemistry >Vegetation Spots and Stripes:Dissipative Structures in Arid Landscapes
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Vegetation Spots and Stripes:Dissipative Structures in Arid Landscapes

机译:植被斑纹:干旱景观中的耗散结构

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摘要

The large-scale vegetation patterns observed in many arid regions are due to the existence of facilitative and competitive interactions that affect the communal development of plants.For the patterns to form,it is necessary that competitive interactions be of longer range than facilitative interactions.Aridity affects the pattern's symmetry properties.As it increases,one first finds patterns constituted of spots of sparser vegetation,which then transform into an alternation of stripes of sparser and thicker vegetation,and finally into a pattern of vegetation spots separated by bare ground.The model and nonlinear analysis presented below explains the observations.
机译:在许多干旱地区观察到的大规模植被格局是由于存在促进植物共同发展的促进性和竞争性相互作用。要形成这种格局,竞争性相互作用的范围要大于促进性相互作用的范围。影响它的对称性。随着它的增加,首先找到由稀疏植被斑点组成的图案,然后转变为稀疏条纹和较厚植被的交替条纹,最后变成由裸露的地面隔开的植被斑点的图案。下面介绍的非线性分析解释了这些发现。

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