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Self organisation of microbial soil organic matter turnover

Microbial turnover of soil organic matter (SOM) is key for the terrestrial carbon (C) cycle. Its underlying mechanisms, however, are not fully understood. The role of soil microbes for organic matter turnover has so far been studi... ver más

30/04/2025

UNIVIE

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

UNIVERSITAT WIEN No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 2 Participantes

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2018-12-18

ERC-2018-COG: ERC Consolidator Grant

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2 Participantes

UNIVIE

1.90M€ | Lider

FKR QUIMICA

99.00K€ | Participante

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Duración del proyecto: 76 meses Fecha Inicio: 2018-12-18
Fecha Fin: 2025-04-30

Líder del proyecto

UNIVERSITAT WIEN No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Descripción del proyecto Microbial turnover of soil organic matter (SOM) is key for the terrestrial carbon (C) cycle. Its underlying mechanisms, however, are not fully understood. The role of soil microbes for organic matter turnover has so far been studied mainly from the point of view of microbial physiology, stoichiometry or community composition. I propose to shed new light on it from the perspective of complex systems science. Microbial decomposition of organic matter requires the concerted action of functionally different microbes interacting with each other in a spatially structured environment. From complex systems theory, it is known that interactions among individuals at the microscale can lead to an ‘emergent’ system behavior, or ‘self-organisation’, at the macroscale, which adds a new quality to the system that cannot be derived from the traits of the interacting agents. Importantly, if microbial decomposer systems are self-organised, they may behave in a different way as currently assumed, especially under changing environmental conditions. The aim of this project is thus to investigate i) if microbial decomposition of organic matter is driven by emergent behaviour, and ii) what consequences this has for soil C and nitrogen cycling. Combining state-of-the-art methods from soil biogeochemistry, microbial ecology, and complex systems science I will • Investigate mechanisms of spatial self-organization of microbial decomposer communities by linking microscale observations from experimental microcosms to mathematical, individual-based modelling, • Elucidate microbial interaction networks across the soil’s microarchitecture by linking microbial community composition, process rates and chemical composition of spatially explicit soil micro-units at an unprecedented small and pertinent scale. • Explore fundamental patterns of self-organisation by applying the framework of complex systems science to high-resolution spatial and temporal data of soil microstructure and process rates.

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