Vertical distribution of root biomass and soil carbon stocks in forage cropping systems
Background and aims: Forage cropping systems may differentially affect the vertical distribution of roots and soil organic C stock (C-OM). In annual crops sequences (ACS) and perennial pastures (PP), we assessed the association between root biomass, C-OM, C in mineral-associated organic matter (C-...
| Autores principales: | , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2018
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/2864 https://link.springer.com/article/10.1007%2Fs11104-017-3502-8 https://doi.org/10.1007/s11104-017-3502-8 |
| _version_ | 1855035040804634624 |
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| author | Ojeda, Jonathan Jesus Caviglia, Octavio Agnusdei, Monica Graciela |
| author_browse | Agnusdei, Monica Graciela Caviglia, Octavio Ojeda, Jonathan Jesus |
| author_facet | Ojeda, Jonathan Jesus Caviglia, Octavio Agnusdei, Monica Graciela |
| author_sort | Ojeda, Jonathan Jesus |
| collection | INTA Digital |
| description | Background and aims:
Forage cropping systems may differentially affect the vertical distribution of roots and soil organic C stock (C-OM). In annual crops sequences (ACS) and perennial pastures (PP), we assessed the association between root biomass, C-OM, C in mineral-associated organic matter (C-MAOM), and C in particulate organic matter (C-POM) and its vertical distribution.
Methods:
Root biomass, C-OM, C-MAOM and C-POM were measured in a Petrocalcic Argiudol at five soil depths up to 100 cm during two years in the south-eastern Pampas of Argentina. The field experiment comprised 28 plots including five perennial pastures and two annual crop sequences. Associations between variables were assessed by regression analysis and non-linear models.
Results:
Overall, ACS and PP had similar cumulative root biomass. Both, root biomass and soil C stocks exponentially decreased with soil depth. Soil C stocks associated to root biomass tended to stabilize over a threshold value of root biomass for C-MAOM and C-OM. C-POM tended to stabilize over a threshold value only in treatments that included tall fescue.
Conclusions:
Our results highlights the key role of roots to improve soil C stocks through the design of forage crop rotations that include crops able to increase root inputs to the soil, such as tall fescue. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2864 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA28642018-07-24T14:34:04Z Vertical distribution of root biomass and soil carbon stocks in forage cropping systems Ojeda, Jonathan Jesus Caviglia, Octavio Agnusdei, Monica Graciela Biomasa Carbono Materia Orgánica del Suelo Raíces Plantas Forrajeras Sistemas de Cultivo Cropping Systems Feed Crops Roots Soil Organic Matter Carbon Biomass Región Pampena Background and aims: Forage cropping systems may differentially affect the vertical distribution of roots and soil organic C stock (C-OM). In annual crops sequences (ACS) and perennial pastures (PP), we assessed the association between root biomass, C-OM, C in mineral-associated organic matter (C-MAOM), and C in particulate organic matter (C-POM) and its vertical distribution. Methods: Root biomass, C-OM, C-MAOM and C-POM were measured in a Petrocalcic Argiudol at five soil depths up to 100 cm during two years in the south-eastern Pampas of Argentina. The field experiment comprised 28 plots including five perennial pastures and two annual crop sequences. Associations between variables were assessed by regression analysis and non-linear models. Results: Overall, ACS and PP had similar cumulative root biomass. Both, root biomass and soil C stocks exponentially decreased with soil depth. Soil C stocks associated to root biomass tended to stabilize over a threshold value of root biomass for C-MAOM and C-OM. C-POM tended to stabilize over a threshold value only in treatments that included tall fescue. Conclusions: Our results highlights the key role of roots to improve soil C stocks through the design of forage crop rotations that include crops able to increase root inputs to the soil, such as tall fescue. EEA Paraná Fil: Ojeda, Jonathan Jesus. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Caviglia, Octavio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná. Grupo Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina Fil: Agnusdei, Monica Graciela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina 2018-07-24T14:23:18Z 2018-07-24T14:23:18Z 2018-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2864 https://link.springer.com/article/10.1007%2Fs11104-017-3502-8 0032-079X 1573-5036 (Online) https://doi.org/10.1007/s11104-017-3502-8 eng info:eu-repo/semantics/restrictedAccess application/pdf Pampa (general region) Argentina (nation) Springer Plant and soil 423 (1–2) : 175–191. (February 2018) |
| spellingShingle | Biomasa Carbono Materia Orgánica del Suelo Raíces Plantas Forrajeras Sistemas de Cultivo Cropping Systems Feed Crops Roots Soil Organic Matter Carbon Biomass Región Pampena Ojeda, Jonathan Jesus Caviglia, Octavio Agnusdei, Monica Graciela Vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| title | Vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| title_full | Vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| title_fullStr | Vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| title_full_unstemmed | Vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| title_short | Vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| title_sort | vertical distribution of root biomass and soil carbon stocks in forage cropping systems |
| topic | Biomasa Carbono Materia Orgánica del Suelo Raíces Plantas Forrajeras Sistemas de Cultivo Cropping Systems Feed Crops Roots Soil Organic Matter Carbon Biomass Región Pampena |
| url | http://hdl.handle.net/20.500.12123/2864 https://link.springer.com/article/10.1007%2Fs11104-017-3502-8 https://doi.org/10.1007/s11104-017-3502-8 |
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