Carbon stocks and fuxes in rangelands of the Río de la Plata Basin
Grasslands are one of the most modified biomes on Earth. Land use changes had a large impact on carbon [C] stocks of grasslands. Understanding the impact of land use-land cover changes on C stocks and fluxes is critical to evaluate the potential of rangeland ecosystem as C sinks. In this article we...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2010parueloOK.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Carbon stocks and fuxes in rangelands of the Río de la Plata Basin |
| 520 | |a Grasslands are one of the most modified biomes on Earth. Land use changes had a large impact on carbon [C] stocks of grasslands. Understanding the impact of land use-land cover changes on C stocks and fluxes is critical to evaluate the potential of rangeland ecosystem as C sinks. In this article we analyze C stocks and fluxes across the environmental gradients of one of the most extensive temperate rangeland areas: the Río de la Plata Grasslands [RPG] in SouthAmerica. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production [ANPP] ranged from240to 316 gC.m-² . yr-¹. Estimates of belowgroundNPP [BNPP]weremore variable thanANPP and ranged from264 to 568 g C.m-² .yr-¹. Total Carbon ranged from 5 004 to 15 008 g C.m-². Plant biomass contribution to Total Carbon averaged 3 per cent andvaried from9.5 per cent 27 per cent among sites. The largestplant Cstock corresponded tobelow ground biomass. Abovegroundgreen biomass represented less than 7 per cent of the plant C. Soil organic carbon [SOC] was concentrated in the slowandpassive compartments of the organic matter. Active soil pool represented only 6.7 per cent of the SOC. The understanding of C dynamics and stocks in the RPG grasslands is still partial and incomplete. Field estimates of ANPP and BNPP are scarce, and they are not based on a common measurement protocol. Remotely sensed techniques have the potential to generate a coherent and spatially explicit databaseonANPP. However,morework is needed toimprove estimates of the spatialandtemporal variabilityof radiation use efficiency. The absence of a flux tower network restricts the ability to track seasonal changes in C uptake and to understand fine-scale controls of C dynamics. | ||
| 653 | 0 | |a ABOVEGROUND NET PRIMARY PRODUCTION | |
| 653 | 0 | |a BELOWGROUND NET PRIMARY PRODUCTION | |
| 653 | 0 | |a CENTURY MODEL | |
| 653 | 0 | |a LAND USE - LAND COVER CHANGES | |
| 653 | 0 | |a REMOTE SENSING | |
| 700 | 1 | |9 788 |a Paruelo, José María | |
| 700 | 1 | |9 22554 |a Piñeiro, Gervasio | |
| 700 | 1 | |9 26877 |a Baldi, Germán | |
| 700 | 1 | |a Baeza, Santiago |9 68219 | |
| 700 | 1 | |a Lezama, Felipe |9 46056 | |
| 700 | 1 | |a Altesor, Alice |9 67488 | |
| 700 | 1 | |9 8019 |a Oesterheld, Martín | |
| 773 | |t Rangeland Ecology and Management |g Vol.63, no.1 (2010), p.94-108, grafs., tbls., mapas | ||
| 856 | |u http://ri.agro.uba.ar/files/intranet/articulo/2010parueloOK.pdf |i En reservorio |q application/pdf |f 2010parueloOK |x MIGRADOS2018 | ||
| 856 | |u http://www.sciencedirect.com |x MIGRADOS2018 |z LINK AL EDITOR | ||
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| 900 | |a ARTICULO | ||
| 900 | |a EN LINEA | ||
| 900 | |a 10.2111/08-055.1 | ||
| 900 | |a ^tCarbon stocks and fuxes in rangelands of the Río de la Plata Basin | ||
| 900 | |a ^aParuelo^bJ. M. | ||
| 900 | |a ^aPiñeiro^bG. | ||
| 900 | |a ^aBaldi^bG. | ||
| 900 | |a ^aBaeza^bS. | ||
| 900 | |a ^aLezama^bF. | ||
| 900 | |a ^aAltesor^bA. | ||
| 900 | |a ^aOesterheld^bM. | ||
| 900 | |a ^aParuelo^bJosé María | ||
| 900 | |a ^aPiñeiro^bGervasio | ||
| 900 | |a ^aBaldi^bGermán | ||
| 900 | |a ^aBaeza^bSantiago | ||
| 900 | |a ^aLezama^bFelipe | ||
| 900 | |a ^aAltesor^bAlice | ||
| 900 | |a ^aOesterheld^bMartín | ||
| 900 | |a ^aParuelo^bJosé María^tLaboratorio de Análisis Regional y Teledetección, Departamento de Métodos Cuantitativos y Sistemas de Información, IFEVA, Facultad de Agronomía, y CONICET, Universidad de Buenos Aires, Av San Martín 4453, [1417] Ciudad de Buenos Aires, Argentina.- Email: paruelo@agro.uba.ar | ||
| 900 | |a ^aPiñeiro^bGervasio^tLaboratorio de Análisis Regional y Teledetección, Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura, y Facultad de Agronomía, Universidad de Buenos Aires, y Consejo Nacional de Investigaciones Científicas y Técnicas [CONICET], Buenos Aires, Argentina | ||
| 900 | |a ^aBaldi^bGermán^tGrupo de Estudios Ambientales, Instituto de Matemática Aplicada San Luis, Universidad Nacional de San Luis-CONICET, San Luis, Argentina | ||
| 900 | |a ^aBaeza^bSantiago^tSección Ecología Terrestre, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay | ||
| 900 | |a ^aLezama^bFelipe^tInstituto Nacional de Investigaciones Agropecuarias, Treinta y Tres, Uruguay | ||
| 900 | |a ^aAltesor^bAlice^tSección Ecología Terrestre, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay | ||
| 900 | |a ^aOesterheld^bMartín^tLaboratorio de Análisis Regional y Teledetección, Instituto de Investigaciones Fisiológicas y Ecológicas vinculadas a la Agricultura, y Facultad de Agronomía, Universidad de Buenos Aires, y Consejo Nacional de Investigaciones Científicas y Técnicas [CONICET], Buenos Aires, Argentina | ||
| 900 | |a ^tRangeland Ecology and Management | ||
| 900 | |a en | ||
| 900 | |a p.94 | ||
| 900 | |a ^egrafs., tbls., mapas | ||
| 900 | |a Vol.63, no.1 (2010) | ||
| 900 | |a 108 | ||
| 900 | |a ABOVEGROUND NET PRIMARY PRODUCTION | ||
| 900 | |a BELOWGROUND NET PRIMARY PRODUCTION | ||
| 900 | |a CENTURY MODEL | ||
| 900 | |a LAND USE - LAND COVER CHANGES | ||
| 900 | |a REMOTE SENSING | ||
| 900 | |a Grasslands are one of the most modified biomes on Earth. Land use changes had a large impact on carbon [C] stocks of grasslands. | ||
| 900 | |a Understanding the impact of land use-land cover changes on C stocks and fluxes is critical to evaluate the potential of rangeland ecosystem as C sinks. | ||
| 900 | |a In this article we analyze C stocks and fluxes across the environmental gradients of one of the most extensive temperate rangeland areas: the Río de la Plata Grasslands [RPG] in SouthAmerica. | ||
| 900 | |a The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. | ||
| 900 | |a Average estimates of aboveground net primary production [ANPP] ranged from240to 316 gC.m-² . yr-¹. | ||
| 900 | |a Estimates of belowgroundNPP [BNPP]weremore variable thanANPP and ranged from264 to 568 g C.m-² .yr-¹. | ||
| 900 | |a Total Carbon ranged from 5 004 to 15 008 g C.m-². | ||
| 900 | |a Plant biomass contribution to Total Carbon averaged 3 per cent andvaried from9.5 per cent 27 per cent among sites. | ||
| 900 | |a The largestplant Cstock corresponded tobelow ground biomass. | ||
| 900 | |a Abovegroundgreen biomass represented less than 7 per cent of the plant C. Soil organic carbon [SOC] was concentrated in the slowandpassive compartments of the organic matter. | ||
| 900 | |a Active soil pool represented only 6.7 per cent of the SOC. | ||
| 900 | |a The understanding of C dynamics and stocks in the RPG grasslands is still partial and incomplete. Field estimates of ANPP and BNPP are scarce, and they are not based on a common measurement protocol. | ||
| 900 | |a Remotely sensed techniques have the potential to generate a coherent and spatially explicit databaseonANPP. | ||
| 900 | |a However,morework is needed toimprove estimates of the spatialandtemporal variabilityof radiation use efficiency. | ||
| 900 | |a The absence of a flux tower network restricts the ability to track seasonal changes in C uptake and to understand fine-scale controls of C dynamics. | ||
| 900 | |a 2010 | ||
| 900 | |a AAG | ||
| 900 | |a 2010parueloOK | ||
| 900 | |a http://ri.agro.uba.ar/files/intranet/articulo/2010parueloOK.pdf | ||
| 900 | |a http://www.sciencedirect.com | ||
| 900 | |a GM | ||
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| 942 | 0 | 0 | |c ENLINEA |2 udc |