Accounting for soil architecture and microbial dynamics in microscale models: current practices in soil science and the path ahead

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dc.contributor.authorPot, Valérie
dc.contributor.authorPortell, Xavier
dc.contributor.authorOtten, Wilfred
dc.contributor.authorGarnier, Patricia
dc.contributor.authorMonga, Olivier
dc.contributor.authorBaveye, Philippe C.
dc.date.accessioned2021-07-22T14:21:09Z
dc.date.available2021-07-22T14:21:09Z
dc.date.issued2021-07-04
dc.description.abstractMacroscopic models of soil organic matter (SOM) turnover have faced difficulties in reproducing SOM dynamics or in predicting the spatial distribution of carbon stocks. These models are based on a largely inadequate linear response of soil microorganisms to bulk concentrations of nutrients and it is clear that a new approach to SOM modelling is required. Introducing explicit microbial activity and organic matter (OM) reactivity in macroscopic models represents a challenge because of the fine spatial scales at which the processes occur. To get a better grasp on interactions that take place at the microscale, a new generation of SOM models have been developed at the spatial scale of the soil microenvironments where microorganisms evolve. These models are well adapted to challenge traditional hypotheses about the influence of soil architecture on soil microbial activity. Soil architecture provides the stage for a dynamic spatial accessibility of resources to microbes and the emergence of interactions between the actors in SOM decomposition. In this context, we review microscale models of microbial activity that have been designed for soils and soil analogues. To understand how these models account for spatial accessibility, we look in detail at how soil microenvironments are described in the different approaches and how microbial colonies are spatialized in these microenvironments. We present the advantages and disadvantages of the developed strategies and we discuss their limits.en_UK
dc.identifier.citationPot V, Portell X, Otten W, et al., (2022) Accounting for soil architecture and microbial dynamics in microscale models: current practices in soil science and the path ahead. European Journal of Soil Science, Volume 73, Issue 1, January-February 2022, Article number e13142en_UK
dc.identifier.issn1351-0754
dc.identifier.urihttps://doi.org/10.1111/ejss.13142
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16923
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectsoil organic matter decompositionen_UK
dc.subjectsoil microenvironmentsen_UK
dc.subjectsoil architectureen_UK
dc.subjectmicroscale modelsen_UK
dc.subjectmicrobial dynamicsen_UK
dc.subjectfungi modelsen_UK
dc.subjectbacteria modelsen_UK
dc.titleAccounting for soil architecture and microbial dynamics in microscale models: current practices in soil science and the path aheaden_UK
dc.typeArticleen_UK

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