Carbon flux through the soil animal food web: meso- and macrofauna

通过土壤动物食物网的碳通量：中型动物和大型动物

• 批准号: 62052272
• 负责人: Professor Dr. Stefan Scheu
• 金额: --
• 依托单位: Arbeitsgruppe Tierökologie
• 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/62052272?language=en
• 关键词: Carbon; flux; through; soil; animal

The proposed project examines the trophic transfer of carbon into the soil meso- and macrofauna food web of arable systems. In the field trophic links and the flux of carbon from major basal resources to higher trophic levels of the decomposer system are investigated by stable isotope and lipid analyses. Using manipulations in the field the project aims at (1) quantifying the relative importance of above- and belowground plant carbon resources as basis of the decomposer system, and (2) evaluating the role of the presence of living plants as driving factor for the transfer of plant residue carbon into the decomposer food web. Further, in laboratory experiments the project investigates (3) the flux of carbon from major bacterial and fungal taxa into the decomposer food web, thereby opening the structure of microbivore food chains and quatifying food web links between microorganisms and meso- and marcofauna consumers. The complement of field and laboratory manipulations will allow insight into the structure and functioning of soil meso- and macrofauna food webs of model arable systems in unprecedented detail, and provide essential information on pools and fluxes of carbon through the decomposer system for modelling the dynamics and carbon flux through the full soil decomposer food web.

拟议的项目研究了将碳的营养转移到土壤中和大面积的耕种系统中。在田间营养环和碳从主要基础资源到更高营养水平的分解器系统的碳的通量，可以通过稳定的同位素和脂质分析进行研究。该项目在现场使用操作旨在（1）量化地上和地下植物碳资源作为分解机系统的基础的相对重要性，以及（2）评估生物的存在作为将植物残留碳转移到分解剂Food Web中的驱动因子的作用。此外，在实验室实验中，该项目调查了（3）从主要细菌和真菌分类群中碳的通量到分解食品网络，从而开放了微生物食品链的结构，并使微生物和中等生物和Marcofauna消费者之间的食物网络链接变得不合时宜。野外和实验室操作的补充将使您以前所未有的细节了解模型可耕种系统的土壤中和摩克富纳食品网的结构和功能，并通过分解器系统的池和通量提供有关碳和通量的基本信息，以通过全部动态和碳通过全部土壤Demompompompompompomposer Food exomposer exomposer exomposer exomposer exompomposer网络建模。