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Resumen
The objective of the study was to elucidate the relationship between soil management and carbon (C) stocks, and to identify the factors that intervene in the processes that favor C sequestration. The study was carried out on a farm in the Argentinean semiarid pampas with four land management practices (2019–2021): natural grassland (NG), crop-pasture rotation (RO), soybean monoculture (S-S) and with cover crop (S-CC). Aerial and root biomass were
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dc.contributor.author | Frasier, Ileana | |
dc.contributor.author | Barbero, Florencia Magalí | |
dc.contributor.author | Perez Brandan, Carolina | |
dc.contributor.author | Gómez, María Florencia | |
dc.contributor.author | Fernandez, Romina | |
dc.contributor.author | Quiroga, Alberto Raul | |
dc.contributor.author | Posse Beaulieu, Gabriela | |
dc.contributor.author | Restovich, Silvina Beatriz | |
dc.contributor.author | Meriles, José Manuel | |
dc.contributor.author | Serri, Dannae Lilia | |
dc.contributor.author | Figuerola, Eva Lucia Margarita | |
dc.contributor.author | Noellemeyer, Elke | |
dc.contributor.author | Vargas Gil, Silvina | |
dc.date.accessioned | 2024-02-14T14:09:59Z | |
dc.date.available | 2024-02-14T14:09:59Z | |
dc.date.issued | 2024-01-01 | |
dc.identifier.issn | 0167-1987 | |
dc.identifier.other | https://doi.org/10.1016/j.still.2023.105918 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/16597 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0167198723002854 | |
dc.description.abstract | The objective of the study was to elucidate the relationship between soil management and carbon (C) stocks, and to identify the factors that intervene in the processes that favor C sequestration. The study was carried out on a farm in the Argentinean semiarid pampas with four land management practices (2019–2021): natural grassland (NG), crop-pasture rotation (RO), soybean monoculture (S-S) and with cover crop (S-CC). Aerial and root biomass were quantified at cover crop termination and soybean flowering. In addition, residues on soil surface were determined two times a year. In all cases, C and N contents were quantified. On composite soil samples, soil organic C (SOC), particulate C (POC), microbial biomass C and N (MBC, MBN), and soluble C and N were determined at 0–0.1 m depth. Results showed that NG had the highest and the most stable aboveground (3807.1 kg residue-C ha-1) and belowground inputs between years (4965.8 kg root-C ha-1). Similar results were observed in RO treatment during the first year (4221.0 kg root-C ha-1) diminishing by 67% after plowing for the annual crop in the second year reaching similar root-C values than S-CC and S-S (721.7 kg ha-1). S-S presented the lowest aboveground (49%) and belowground inputs (77%) compared to NG. Cover crops (S-CC) contributed with 31% and 14% of extra residue-C and root-C, respectively, compared to S-S. MBC showed a non-linear response with increases in root-C, reaching maximum carrying capacity of 110.6 ± 4.3 kg MBC ha-1 with root-C inputs ≥ 2200 kg ha-1. Our results showed significant relationships between root-C and POC and SOC, while no relationships were found for aboveground residues. Increases in soluble N explained 86% of SOC variability. Both RO and S-CC reached the “4 per Mille” goal with an average annual SOC storage rate (ΔC) of 0.24 and 0.16 Mg ha-1 y-1, respectively, while S-S had SOC losses of 0.04 Mg ha-1yr-1. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Elsevier | es_AR |
dc.relation | info:eu-repograntAgreement/INTA/2019-PD-E3-I062-001, Estrategias de producción que incrementen el secuestro de C en suelo para la mitigación del Cambio Climático | |
dc.relation | info:eu-repograntAgreement/INTA/2019-PD-E3-I058-001, Emisiones (GEI) en los sistemas agropecuarios y forestales. Medidas de mitigación | |
dc.rights | info:eu-repo/semantics/restrictedAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | es_AR |
dc.source | Soil & Tillage Research 235 : 105918. (January 2024) | es_AR |
dc.subject | Biomass | eng |
dc.subject | Biomasa | es_AR |
dc.subject | Secuestro de Carbono | es_AR |
dc.subject | Carbon Sequestration | eng |
dc.subject | Manejo del Suelo | |
dc.subject | Soil Management | eng |
dc.subject.other | Root C | eng |
dc.subject.other | Raíz C | es_AR |
dc.subject.other | Soil Microbial Biomass | eng |
dc.subject.other | Biomasa Microbiana del Suelo | es_AR |
dc.subject.other | Gestión del Suelo | es_AR |
dc.subject.other | Reserva de Carbono | es_AR |
dc.subject.other | Carbon Reserve | eng |
dc.subject.other | Región Pampeana Semiárida | |
dc.title | Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | es_AR |
dc.description.origen | Instituto de Suelos | |
dc.description.fil | Fil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina | es_AR |
dc.description.fil | Fil: Barbero, Florencia Magali. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de los Alimentos; Argentina | es_AR |
dc.description.fil | Fil: Perez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina | es_AR |
dc.description.fil | Fil: Gómez, María Florencia. Secretaría de Agricultura Familiar, Campesina e Indígena; Argentina. | es_AR |
dc.description.fil | Fil: Fernández, Romina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina | es_AR |
dc.description.fil | Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina | es_AR |
dc.description.fil | Fil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina | es_AR |
dc.description.fil | Fil: Restovich, Silvina Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Laboratorio Suelos; Argentina | es_AR |
dc.description.fil | Fil: Meriles, José M. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de Los Alimentos; Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: Serri, Dannae Lilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina | es_AR |
dc.description.fil | Fil: Figuerola, Eva Lucia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; Argentina | es_AR |
dc.description.fil | Fil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina | es_AR |
dc.description.fil | Fil: Vargas Gil, Silvina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina | es_AR |
dc.subtype | cientifico |
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