Abstract This study presents an example of the parameterization and validation of the CAMPUS-S model for the dwarf shrubs of the genus Vaccinium, and the results of computational experiments showing the applicability of the model. A quantitative analysis of the population dynamics of dwarf shrubs, their productivity and contribution to the carbon and nitrogen cycling in forest ecosystems was carried out. The CAMPUS-S model takes the morphology, ontogenesis (developmental stages) and physiological features of modeled species into account, both in undisturbed environmental conditions and under external natural and anthropogenic impacts, including climate change. The validation of the model was based on the independent field data and showed a high reliability of the results. Our simulation experiments showed that species-specific properties of dwarf shrubs, such as their structural and functional organization, flexibility of ontogenesis, and tolerance to a range of environmental factors, determine the resistance of populations to different kinds of disturbances, the speed of occupation of the territory and the ability to hold it. We demonstrated that dwarf shrubs have an important contribution to the carbon and nitrogen cycles of boreal forest ecosystems via above- and belowground litter production.

中文翻译：

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CAMPUS-S – 森林生态系统中地层植被种群模型及其对碳和氮动态的贡献。二、参数化、验证和模拟实验

摘要 本研究提供了一个用于牛痘属矮灌木的 CAMPUS-S 模型参数化和验证的示例，以及显示该模型适用性的计算实验结果。对矮灌木的种群动态、它们的生产力和对森林生态系统中碳和氮循环的贡献进行了定量分析。CAMPUS-S 模型考虑了模型物种在未受干扰的环境条件下以及在外部自然和人为影响（包括气候变化）下的形态学、个体发育（发育阶段）和生理特征。模型的验证是基于独立的现场数据，显示了结果的高可靠性。我们的模拟实验表明，矮灌木的物种特异性特性，例如它们的结构和功能组织、个体发育的灵活性以及对一系列环境因素的耐受性，决定了种群对不同类型干扰的抵抗力、占领的速度。领土和拥有它的能力。我们证明矮灌木通过地上和地下凋落物的生产对北方森林生态系统的碳和氮循环有重要贡献。