Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]

Drought water stress is a crucial constraint for Mediterranean agriculture, affecting microbial dynamics and soil carbon fluxes. This study evaluated the influence of tillage (traditional -TT- vs. reduced -RT-) and fertilization (mineral -MF- vs. organic biosolid compost -BC-) in a drying-rewetting...

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Detalles Bibliográficos
Autores: Mediano-Guisado, José A., Lozano de Sosa, Laura, Domínguez, María Teresa, Madejón, Paula, Madejón, Engracia
Tipo de recurso: conjunto de datos
Fecha de publicación:2026
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::26655d846268d1d464052addd0c47ac9
Acceso en línea:http://hdl.handle.net/10261/427111
https://doi.org/10.20350/digitalCSIC/18243
Access Level:acceso abierto
Palabra clave:Birch effect
Labile carbon
Soil respiration
Mediterranean agriculture
Soil moisture
Agricultural management practices
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spelling Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]Mediano-Guisado, José A.Lozano de Sosa, LauraDomínguez, María TeresaMadejón, PaulaMadejón, EngraciaBirch effectLabile carbonSoil respirationMediterranean agricultureSoil moistureAgricultural management practicesDrought water stress is a crucial constraint for Mediterranean agriculture, affecting microbial dynamics and soil carbon fluxes. This study evaluated the influence of tillage (traditional -TT- vs. reduced -RT-) and fertilization (mineral -MF- vs. organic biosolid compost -BC-) in a drying-rewetting incubation experiment to quantify the Birch Effect (the pulse of carbon and nitrogen mineralization following the rewetting of a dry soil). Soil samples were subjected to drought and rewetting cycles from 5% to 60% of field capacity (FC). Over these cycles soil respiration, chemical properties related to carbon and nitrogen cycles, and the composition of bacterial and fungal communities were analyzed. RT exhibited higher soil respiration (41% greater during drying) and a maximum CO2 pulse following rewetting (the so-called Birch Effect), linked to a higher concentration of Water-Soluble Carbon (WSC). RT soils also showed faster CO2 stabilization post-rewetting in comparison to TT. The BC amendment significantly improved N-NO3- and increased microbial biomass carbon (MBC). Water stress was the most determinant factor for microbial taxonomic structure, overriding the effect of management. Extreme drought (5% FC) maximized bacterial richness and evenness, acting as a filter that favored xerotolerant taxa like Proteobacteria and Acidobacteriota. Rewetting triggered the rapid proliferation of resistant taxa like Firmicutes. Our results highlight that soil moisture is the primary driver of microbial assembly, while management practices modulate carbon mineralization dynamics under Mediterranean drought conditions.NoCSIC - Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS)Mediano-Guisado, José A. [0000-0001-6079-0049]Lozano de Sosa, Laura [0000-0002-4156-1897]Domínguez, María Teresa [0000-0002-7348-9543]Madejón, Paula [0000-0002-8641-8293]Madejón, Engracia [0000-0002-6282-7041]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262026info:eu-repo/semantics/datasethttp://purl.org/coar/resource_type/c_ddb1http://hdl.handle.net/10261/427111https://doi.org/10.20350/digitalCSIC/18243reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::26655d846268d1d464052addd0c47ac92026-05-22T06:33:51Z
dc.title.none.fl_str_mv Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
title Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
spellingShingle Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
Mediano-Guisado, José A.
Birch effect
Labile carbon
Soil respiration
Mediterranean agriculture
Soil moisture
Agricultural management practices
title_short Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
title_full Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
title_fullStr Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
title_full_unstemmed Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
title_sort Soil carbon fluxes and microbial community responses to drought–rewetting under contrasting tillage and fertilization systems[Dataset]
dc.creator.none.fl_str_mv Mediano-Guisado, José A.
Lozano de Sosa, Laura
Domínguez, María Teresa
Madejón, Paula
Madejón, Engracia
author Mediano-Guisado, José A.
author_facet Mediano-Guisado, José A.
Lozano de Sosa, Laura
Domínguez, María Teresa
Madejón, Paula
Madejón, Engracia
author_role author
author2 Lozano de Sosa, Laura
Domínguez, María Teresa
Madejón, Paula
Madejón, Engracia
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Mediano-Guisado, José A. [0000-0001-6079-0049]
Lozano de Sosa, Laura [0000-0002-4156-1897]
Domínguez, María Teresa [0000-0002-7348-9543]
Madejón, Paula [0000-0002-8641-8293]
Madejón, Engracia [0000-0002-6282-7041]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Birch effect
Labile carbon
Soil respiration
Mediterranean agriculture
Soil moisture
Agricultural management practices
topic Birch effect
Labile carbon
Soil respiration
Mediterranean agriculture
Soil moisture
Agricultural management practices
description Drought water stress is a crucial constraint for Mediterranean agriculture, affecting microbial dynamics and soil carbon fluxes. This study evaluated the influence of tillage (traditional -TT- vs. reduced -RT-) and fertilization (mineral -MF- vs. organic biosolid compost -BC-) in a drying-rewetting incubation experiment to quantify the Birch Effect (the pulse of carbon and nitrogen mineralization following the rewetting of a dry soil). Soil samples were subjected to drought and rewetting cycles from 5% to 60% of field capacity (FC). Over these cycles soil respiration, chemical properties related to carbon and nitrogen cycles, and the composition of bacterial and fungal communities were analyzed. RT exhibited higher soil respiration (41% greater during drying) and a maximum CO2 pulse following rewetting (the so-called Birch Effect), linked to a higher concentration of Water-Soluble Carbon (WSC). RT soils also showed faster CO2 stabilization post-rewetting in comparison to TT. The BC amendment significantly improved N-NO3- and increased microbial biomass carbon (MBC). Water stress was the most determinant factor for microbial taxonomic structure, overriding the effect of management. Extreme drought (5% FC) maximized bacterial richness and evenness, acting as a filter that favored xerotolerant taxa like Proteobacteria and Acidobacteriota. Rewetting triggered the rapid proliferation of resistant taxa like Firmicutes. Our results highlight that soil moisture is the primary driver of microbial assembly, while management practices modulate carbon mineralization dynamics under Mediterranean drought conditions.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/dataset
http://purl.org/coar/resource_type/c_ddb1
format dataset
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/427111
https://doi.org/10.20350/digitalCSIC/18243
url http://hdl.handle.net/10261/427111
https://doi.org/10.20350/digitalCSIC/18243
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv CSIC - Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS)
publisher.none.fl_str_mv CSIC - Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812455

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