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林木结构—功能模型是指能明确表达由林木生理过程和环境因子调控的植物三维结构生长和变化的一类模型,其既考虑了树木结构的发展,又考虑了树木生理生态过程和环境之间的交互影响。文中探讨了林木竞争经验模型的研究应用,认为其存在的不足是缺乏反映树木内部资源获取与分配的生理生态指标以及着枝个数、枝条长度等形态属性指标等;以目前几种主要的结构—功能模型为例,对其在林木竞争研究中的应用以及对竞争表达的改进方面进行了评述,最后指出目前结构—功能模型在林木竞争研究中存在的问题及未来的应用前景。
The tree structure-function model is a kind of model which can clearly express the growth and change of the three-dimensional structure of the plant regulated by the physiological and environmental factors of the tree. It not only considers the development of the tree structure but also takes into consideration the relationship between the tree’s physiological and ecological processes and the environment Interaction. In this paper, the research and application of the experience model of forest competition is discussed, and its deficiency is the lack of physiological and ecological indexes that reflect the acquisition and distribution of resources within the tree, as well as morphological attributes such as number of branches, length of branches, etc. At present, - function model as an example, its application in the research of forest competition and the improvement of competition expression are reviewed. Finally, the problems and the future application prospects of the present structure-function model in the research of forest competition are pointed out.