Reassessing the role of grazing lands in carbon - balance estimations meta - analysis and review
Assuming a steady state between carbon (C) gains and losses, greenhouse gases (GHG) inventories that follow a widely used simplified procedure (IPCC Tier 1) tend to underestimate the capacity of soils in grazing - land to sequester C. In this study we compared the C balance reported by (i) national...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2019viglizzo.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 024 | |a 10.1016/j.scitotenv.2019.01.130 | ||
| 040 | |a AR-BaUFA | ||
| 245 | 1 | 0 | |a Reassessing the role of grazing lands in carbon - balance estimations |b meta - analysis and review |
| 520 | |a Assuming a steady state between carbon (C) gains and losses, greenhouse gases (GHG) inventories that follow a widely used simplified procedure (IPCC Tier 1) tend to underestimate the capacity of soils in grazing - land to sequester C. In this study we compared the C balance reported by (i) national inventories that followed the simplified method (Tier 1) of IPCC (1996/2006), with (ii) an alternative estimation derived from the meta - analysis of science - based, peer-reviewed data. We used the global databases (i) EDGAR 4.2 to get data on GHG emissions due to land conversion and livestock/crop production, and (ii) HYDE 3.1 to obtain historical series on land-use/land cover (LULC). In terms of sequestration, our study was focused on C storage as soil organic carbon (SOC) in rural lands of four countries (Argentina, Brazil, Paraguay and Uruguay) within the so - called MERCOSUR region. Supported by a large body of scientific evidence, we hypothesized that C gains and losses in grazing lands are not in balance and that C gains tend to be higher than C losses at low livestock densities. We applied a two - way procedure to test our hypothesis: i) a theoretical one based on the annual conversion of belowground biomass into SOC; and ii) an empirical one supported by peer-reviewed data on SOC sequestration. Average figures from both methods were combined with LULC data to reassess the net C balance in the study countries. Our results show that grazing lands generate C surpluses that could not only offset rural emissions, but could also partially or totally offset the emissions of non - rural sectors. The potential of grazing lands to sequester and store soil C should be reconsidered in order to improve assessments in future GHG inventory reports. | ||
| 653 | |a CARBON BALANCE | ||
| 653 | |a SOC SEQUESTRATION | ||
| 653 | |a GRAZING LANDS | ||
| 653 | |a GHG INVENTORIES | ||
| 653 | |a EMISSIONS OFFSET | ||
| 700 | 1 | |9 5215 |a Viglizzo, Ernesto F. |u CONICET. Buenos Aires, Argentina. |u Instituto de Ciencias de la Tierra y Ambientales de La Pampa, Santa Rosa, La Pampa, Argentina. |u GPS Grupo de Países Productores del Sur. Ciudad Autónoma de Buenos Aires, Argentina. |u Universidad Austral. Rosario, Santa Fe, Argentina. | |
| 700 | 1 | |9 68340 |a Ricard, María Florencia |u CONICET. Buenos Aires, Argentina. |u Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Santa Rosa, La Pampa, Argentina. |u Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. La Pampa, Argentina. | |
| 700 | 1 | |9 9839 |a Taboada, Miguel Angel |u CONICET. La Pampa, Argentina. |u Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Santa Rosa, La Pampa, Argentina. |u Instituto Nacional de Tecnología Agropecuaria (INTA). Hurlingham, Buenos Aires, Argentina. |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. | |
| 700 | 1 | |9 23107 |a Vázquez Amábile, Gabriel G. |u Asociación Argentina de Consorcios Regionales de Experimentación Agrícola. Buenos Aires, Argentina. |u Universidad de La Plata. Facultad de Ciencias Agrarias y Forestales. La Plata, Argentina. | |
| 773 | |t Science of the Total Environment |g vol.661, no.15 (2019),p.531-542, grafs., tbls., mapas | ||
| 856 | |f 2019viglizzo |i en reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2019viglizzo.pdf |x ARTI201904 | ||
| 856 | |u https://www.elsevier.com |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||