半干旱地区植被格局的最小机制
Minimal mechanisms for vegetation patterns in semiarid regions
摘要：
在半干旱系统中形成规则植被格局的最低生态要求最近受到质疑。一般认为，结合促进和竞争的相互作用是必要的，最近的理论研究表明，在广泛的条件下，植物之间的非本地竞争可能会导致模式。在本文中，我们沿着这条线，提出了一系列的模型，产生的空间格局时，有限范围的竞争是唯一的驱动力。这种类型的模型从一个更详细的考虑水生物量动态的初步推导也提出。关键词：植被格局，非局部相互作用
英文摘要：
The minimal ecological requirements for formation of regular vegetation patterns in semiarid systems have been recently questioned. Against the general belief that a combination of facilitative and competitive interactions is necessary, recent theoretical studies suggest that, under broad conditions, nonlocal competition among plants alone may induce patterns. In this paper, we review results along this line, presenting a series of models that yield spatial patterns when finite-range competition is the only driving force. A preliminary derivation of this type of model from a more detailed one that considers water-biomass dynamics is also presented. Keywords: Vegetation patterns, nonlocal interactions
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