Modelling quantitative carbon flows in soil food webs

模拟土壤食物网中的定量碳流

• 批准号: 62031303
• 负责人: Professor Dr. Ulrich Brose
• 金额: --
• 依托单位: Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/62031303?language=en
• 关键词: Modelling; quantitative; carbon; flows; soil

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.

在研究单元的第一阶段，已经组装了农业土壤田间地点的二元食物网，描述了种群及其营养相互作用。此外，还建立了同化和呼吸率以及消费者资源功能反应的数据库。在研究单位计划的第二阶段，呼吸和同化数据将用于构建一个量化的食物网络模型，其中包含种群之间的明确碳流动。此外，一个统一的碳模型将结合非生物和生物碳流。最后，使用食物网和功能响应数据将允许构建动态的食物网模型，以解决哪些物种对维持种群和食物网稳定以及总碳流最重要。总而言之，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分解的食物网络中的碳流和关键物种。