Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa
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 practic...
| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2024
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/16597 https://www.sciencedirect.com/science/article/pii/S0167198723002854 https://doi.org/10.1016/j.still.2023.105918 |
| _version_ | 1855485795888005120 |
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| author | Frasier, Ileana Barbero, Florencia Magali Perez Brandan, Carolina Gómez, María Florencia Fernandez, Romina Quiroga, Alberto Raul Posse Beaulieu, Gabriela Restovich, Silvina Beatriz Meriles, José Manuel Serri, Dannae Lilia Figuerola, Eva Lucia Margarita Noellemeyer, Elke Vargas Gil, Silvina |
| author_browse | Barbero, Florencia Magali Fernandez, Romina Figuerola, Eva Lucia Margarita Frasier, Ileana Gómez, María Florencia Meriles, José Manuel Noellemeyer, Elke Perez Brandan, Carolina Posse Beaulieu, Gabriela Quiroga, Alberto Raul Restovich, Silvina Beatriz Serri, Dannae Lilia Vargas Gil, Silvina |
| author_facet | Frasier, Ileana Barbero, Florencia Magali Perez Brandan, Carolina Gómez, María Florencia Fernandez, Romina Quiroga, Alberto Raul Posse Beaulieu, Gabriela Restovich, Silvina Beatriz Meriles, José Manuel Serri, Dannae Lilia Figuerola, Eva Lucia Margarita Noellemeyer, Elke Vargas Gil, Silvina |
| author_sort | Frasier, Ileana |
| collection | INTA Digital |
| description | 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. |
| format | Artículo |
| id | INTA16597 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA165972024-10-09T10:46:12Z Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa Frasier, Ileana Barbero, Florencia Magali Perez Brandan, Carolina Gómez, María Florencia Fernandez, Romina Quiroga, Alberto Raul Posse Beaulieu, Gabriela Restovich, Silvina Beatriz Meriles, José Manuel Serri, Dannae Lilia Figuerola, Eva Lucia Margarita Noellemeyer, Elke Vargas Gil, Silvina Biomass Carbon Sequestration Soil Management Biomasa Secuestro de Carbono Manejo del Suelo Root C Soil Microbial Biomass Carbon Reserve Raíz C Biomasa Microbiana del Suelo Gestión del Suelo Reserva de Carbono Región Pampeana Semiárida 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. Instituto de Suelos Fil: Frasier, Ileana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Barbero, Florencia Magali. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Ciencia y Tecnología de los Alimentos; Argentina Fil: Perez Brandan, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Gómez, María Florencia. Secretaría de Agricultura Familiar, Campesina e Indígena; Argentina. Fil: Fernández, Romina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina Fil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina Fil: Restovich, Silvina Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Laboratorio Suelos; Argentina 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 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 Fil: Figuerola, Eva Lucia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; Argentina Fil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina 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 2024-02-14T14:09:59Z 2024-02-14T14:09:59Z 2024-01-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16597 https://www.sciencedirect.com/science/article/pii/S0167198723002854 0167-1987 https://doi.org/10.1016/j.still.2023.105918 eng 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 info:eu-repograntAgreement/INTA/2019-PD-E3-I058-001, Emisiones (GEI) en los sistemas agropecuarios y forestales. Medidas de mitigación info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Soil & Tillage Research 235 : 105918. (January 2024) |
| spellingShingle | Biomass Carbon Sequestration Soil Management Biomasa Secuestro de Carbono Manejo del Suelo Root C Soil Microbial Biomass Carbon Reserve Raíz C Biomasa Microbiana del Suelo Gestión del Suelo Reserva de Carbono Región Pampeana Semiárida Frasier, Ileana Barbero, Florencia Magali Perez Brandan, Carolina Gómez, María Florencia Fernandez, Romina Quiroga, Alberto Raul Posse Beaulieu, Gabriela Restovich, Silvina Beatriz Meriles, José Manuel Serri, Dannae Lilia Figuerola, Eva Lucia Margarita Noellemeyer, Elke Vargas Gil, Silvina Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa |
| title | Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa |
| title_full | Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa |
| title_fullStr | Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa |
| title_full_unstemmed | Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa |
| title_short | Roots are the key for soil C restoration: A comparison of land management in the semiarid Argentinean Pampa |
| title_sort | roots are the key for soil c restoration a comparison of land management in the semiarid argentinean pampa |
| topic | Biomass Carbon Sequestration Soil Management Biomasa Secuestro de Carbono Manejo del Suelo Root C Soil Microbial Biomass Carbon Reserve Raíz C Biomasa Microbiana del Suelo Gestión del Suelo Reserva de Carbono Región Pampeana Semiárida |
| url | http://hdl.handle.net/20.500.12123/16597 https://www.sciencedirect.com/science/article/pii/S0167198723002854 https://doi.org/10.1016/j.still.2023.105918 |
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