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resumen

Resumen
Fertile islands are an important determinant of ecosystem functioning in drylands. These resourcerich patches are maintained by complex interactions among biotic and abiotic factors. Soil microorganisms are responsible for essential ecosystem processes and could affect the ability of fertile islands to capture and cycle nutrients, both directly and indirectly enhancing the fertile island effect. In this context, we aimed to evaluate the attributes of soil [ver mas...]
dc.contributor.authorToledo, Santiago
dc.contributor.authorPeri, Pablo Luis
dc.contributor.authorCorrea, Olga S.
dc.contributor.authorMontecchia, Marcela Susana
dc.contributor.authorGargaglione, Veronica Beatriz
dc.contributor.authorLadd, Brenton
dc.date.accessioned2022-04-19T11:42:51Z
dc.date.available2022-04-19T11:42:51Z
dc.date.issued2022-04-15
dc.identifier.citationToledo S.; Peri P.L.; Correa O.S.; Montecchia M.S.; Gargaglione V.; Ladd B. (2022) Structure and function of soil microbial communities in fertile islands in austral drylands. Austral Ecology 47: 663–673.es_AR
dc.identifier.otherhttps://doi.org/10.1111/aec.13151
dc.identifier.urihttp://hdl.handle.net/20.500.12123/11673
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1111/aec.13151
dc.description.abstractFertile islands are an important determinant of ecosystem functioning in drylands. These resourcerich patches are maintained by complex interactions among biotic and abiotic factors. Soil microorganisms are responsible for essential ecosystem processes and could affect the ability of fertile islands to capture and cycle nutrients, both directly and indirectly enhancing the fertile island effect. In this context, we aimed to evaluate the attributes of soil microbial communities (abundance and activity), elucidate key drivers of the fertile island effect and analyze relationships with a range of soil parameters (physicochemical). The soils under shrub canopies had higher values of microbial biomass carbon (MBC) and soil basal respiration (SBR) rates than soils from intercanopy spaces. However, no differences were observed in Soil Organic Carbon (SOC) or in fungal and bacterial abundances between the microhabitats. Soil nutrient stocks (NPK) and pH values had a positive correlation with MBC and SBR. Also, a positive correlation was observed for fungi abundance and the K content of the soil. We also observed a positive correlation between the bacterial abundance and soil N content. This study suggests that M. tridens can be considered a keystone species that generates fertility islands, critical for biodiversity and ecosystem functioning. The keystone role that M. tridens plays in this system underscores the importance of improving our understanding of these interactions (plant–soil-microorganisms), especially important as drylands expand and aridity increases due to climate change in the second half of this century.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherWileyes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceAustral Ecology 47 (3) : 663–673. (May 2022)es_AR
dc.subjectArid Zoneseng
dc.subjectZonas Aridases_AR
dc.subjectDryland Ecosystemseng
dc.subjectEcosistemas de Tierras Secases_AR
dc.subjectBacteriaeng
dc.subjectFungieng
dc.subjectHongoses_AR
dc.subjectSoil Respirationeng
dc.subjectRespiración de Sueloes_AR
dc.subjectCarboneng
dc.subjectCarbonoes_AR
dc.subjectCanopyeng
dc.subjectCubierta de Copases_AR
dc.subject.otherMicrobial Communitieseng
dc.subject.otherComunidad Microbianaes_AR
dc.subject.otherSpatial Heterogeneityeng
dc.subject.otherHeterogeneidad Espaciales_AR
dc.titleStructure and function of soil microbial communities in fertile islands in austral drylandses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Santa Cruzes_AR
dc.description.filFil: Toledo, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. CIT Santa Cruz; Argentina.es_AR
dc.description.filFil: Toledo, Santiago: Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.es_AR
dc.description.filFil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.es_AR
dc.description.filFil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.es_AR
dc.description.filFil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.es_AR
dc.description.filFil: Correa, Olga S. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos; Argentina.es_AR
dc.description.filFil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos; Argentina.es_AR
dc.description.filFil: Gargaglione Verónica Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.es_AR
dc.description.filFil: Gargaglione Verónica Beatriz. Universidad Nacional de la Patagonia Austral; Argentina.es_AR
dc.description.filFil: Gargaglione Verónica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.es_AR
dc.description.filFil: Ladd, Brenton. Universidad Científica del Sur. Escuela de Agroforestería; Perú.es_AR
dc.subtypecientifico


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