| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1111/ele.12269 |
| Microbial community dynamics alleviate stoichiometric constraints during litter decay. | |
| Kaiser C; Franklin O; Dieckmann U; Richter A | |
| 发表日期 | 2014 |
| 出处 | Ecology Letters 17 (6): 680-690 |
| 出版年 | 2014 |
| 语种 | 英语 |
| 摘要 | Under the current paradigm, organic matter decomposition and nutrient cycling rates are a function of the imbalance between substrate and microbial biomass stoichiometry. Challenging this view, we demonstrate that in an individual-based model, microbial community dynamics alter relative C and N limitation during litter decomposition, leading to a system behaviour not predictable from stoichiometric theory alone. Rather, the dynamics of interacting functional groups lead to an adaptation at the community level, which accelerates nitrogen recycling in litter with high initial C:N ratios and thus alleviates microbial N limitation. This mechanism allows microbial decomposers to overcome large imbalances between resource and biomass stoichiometry without the need to decrease carbon use efficiency (CUE), which is in contrast to predictions of traditional stoichiometric mass balance equations. We conclude that identifying and implementing microbial community-driven mechanisms in biogeochemical models are necessary for accurately predicting terrestrial C fluxes in response to changing environmental conditions. |
| 主题 | Evolution and Ecology (EEP) ; Ecosystems Services and Management (ESM) |
| 关键词 | Carbon cycling Ecological stoichiometry Functional microbial groups Individual-based modelling Litter decomposition Microbial community composition Micro-scale spatial structure Nitrogen cycling |
| URL | http://pure.iiasa.ac.at/id/eprint/10936/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130054 |
| 推荐引用方式 GB/T 7714 | Kaiser C,Franklin O,Dieckmann U,et al. Microbial community dynamics alleviate stoichiometric constraints during litter decay.. 2014. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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