Modelling quantitative carbon flows in soil food webs

在研究单元的第一阶段，已经组装了农业土壤场地的二元食物网，描述了种群及其营养相互作用。此外，还建立了同化和呼吸速率以及消费者-资源功能反应的数据库。在该研究单元计划的第二阶段，呼吸和同化数据将用于构建一个定量的食物网模型，其中包含种群间明确的碳流。此外，一个统一的碳模型将结合非生物和生物碳流。最后，利用食物网和功能响应数据将允许构建动态食物网模型，以确定哪些物种对维持种群和食物网稳定以及总碳流最重要。总之，这些分析提供了一个独特的机会，可以全面了解农业领域高度解析的食物网中的碳流和关键物种。

In the first phase of the research unit, a binary food web of the agricultural soil field site has been assembled describing the populations and their trophic interactions. Additionally, data bases on assimilation and respiration rates and consumer-resource functional responses have been built. In the planned second phase of the research unit, the respiration and assimilation data will be used for constructing a quantitative food web model with explicit carbon flows among populations. Moreover, a unified carbon model will combine abiotic and biotic carbon flows. Finally, using the food web and the functional response data will allow constructing dynamic food web models to address which species are most important for maintaining population and food-web stability and the total carbon flow. Together, these analyses offer the unique opportunity to obtain a comprehensive understanding of carbon flows and keystone species in a highly-resolved food web of an agricultural field.