森林群落的自相似性与尺度
Self-Similarity and Scaling in Forest Communities
摘要：
生态群落表现出普遍的模式和大小，丰度和资源的可用性之间的相互关系。我们使用缩放的想法来开发一个统一的，独立于模型的框架，以了解树木的大小分布，它们的能源使用和空间分布在热带森林。我们证明了树冠在个体水平上的缩放在资源被充分利用时驱动森林结构。我们的预测完全符合一个完全可解的自相似森林模型的标度行为，并与经验数据吻合良好。观察到纯幂律行为的范围取决于可用的资源量。尺度框架可用于评估自然和人为干扰对生态系统结构和功能的影响。
英文摘要：
Ecological communities exhibit pervasive patterns and inter-relationships between size, abundance, and the availability of resources. We use scaling ideas to develop a unified, model-independent framework for understanding the distribution of tree sizes, their energy use and spatial distribution in tropical forests. We demonstrate that the scaling of the tree crown at the individual level drives the forest structure when resources are fully used. Our predictions match perfectly with the scaling behaviour of an exactly solvable self-similar model of a forest and are in good accord with empirical data. The range, over which pure power law behaviour is observed, depends on the available amount of resources. The scaling framework can be used for assessing the effects of natural and anthropogenic disturbances on ecosystem structure and functionality.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
