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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
12/09/2014 |
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Actualizado : |
11/02/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
PARUELO, J.M.; PIÑEIRO, G.; BALDI, G.; BAEZA, S.; LEZAMA, F.; ALTESOR, A.; OESTERHELD, M. |
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Afiliación : |
FELIPE LEZAMA HUERTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Carbon stocks and fluxes in rangelands of the Río de la plata basin. |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
Rangeland Ecology & Management, 2010, v. 63, no. 1 p. 94-108. |
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Volumen : |
63 |
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ISSN : |
1551-5028 |
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DOI : |
10.2111/08-055.1 |
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Idioma : |
Inglés |
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Notas : |
Article history: Manuscript received 17 March 2008; manuscript accepted 3 April 2009. |
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Contenido : |
ABSTRACT:
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 Rio de la Plata Grasslands (RPG) in South America. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production ( ANPP) ranged from 240 to 316 gC · m~2 · yr"1. Estimates of belowgro und NPP(BNPP) were more variable than ANPP and ranged from 264 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 13 % and varied from 9.5% to 27% among sites. The largest plant C stock corresponded to belowground biomass. Aboveground green biomass represented less than 7% of the plant C. Soil organic carbon (SOC) was concentrated in the slow and passive compartments of the organic matter. Active soil pool represented only 6.7% 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 database on ANPP. However, more work is needed to improve estimates of the spatial and temporal variability of 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. MenosABSTRACT:
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 Rio de la Plata Grasslands (RPG) in South America. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production ( ANPP) ranged from 240 to 316 gC · m~2 · yr"1. Estimates of belowgro und NPP(BNPP) were more variable than ANPP and ranged from 264 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 13 % and varied from 9.5% to 27% among sites. The largest plant C stock corresponded to belowground biomass. Aboveground green biomass represented less than 7% of the plant C. Soil organic carbon (SOC) was concentrated in the slow and passive compartments of the organic matter. Active soil pool represented only 6.7% 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 gener... Presentar Todo |
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Palabras claves : |
ABOVEGROUND NET PRIMARY PRODUCTION; BELOWGROUND NET PRIMARY PRODUCTION; CENTURY MODEL; CUENCA DEL RIO DE LA PLATA; LAND USE - LAND COVER CHANGES; REMOTE SENSING. |
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Thesagro : |
CARBONO; MEDICIONES; MODELOS MATEMATICOS; PASTIZALES; TELEDETECCION. |
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Asunto categoría : |
F40 Ecología vegetal |
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Marc : |
LEADER 02971naa a2200385 a 4500
001 1050201
005 2019-02-11
008 2010 bl uuuu u00u1 u #d
022 $a1551-5028
024 7 $a10.2111/08-055.1$2DOI
100 1 $aPARUELO, J.M.
245 $aCarbon stocks and fluxes in rangelands of the Río de la plata basin.$h[electronic resource]
260 $c2010
300 $a63
490 $v63
500 $aArticle history: Manuscript received 17 March 2008; manuscript accepted 3 April 2009.
520 $aABSTRACT: 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 Rio de la Plata Grasslands (RPG) in South America. The analysis summarizes information provided by field studies, remote sensing estimates, and modeling exercises. Average estimates of aboveground net primary production ( ANPP) ranged from 240 to 316 gC · m~2 · yr"1. Estimates of belowgro und NPP(BNPP) were more variable than ANPP and ranged from 264 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 13 % and varied from 9.5% to 27% among sites. The largest plant C stock corresponded to belowground biomass. Aboveground green biomass represented less than 7% of the plant C. Soil organic carbon (SOC) was concentrated in the slow and passive compartments of the organic matter. Active soil pool represented only 6.7% 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 database on ANPP. However, more work is needed to improve estimates of the spatial and temporal variability of 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.
650 $aCARBONO
650 $aMEDICIONES
650 $aMODELOS MATEMATICOS
650 $aPASTIZALES
650 $aTELEDETECCION
653 $aABOVEGROUND NET PRIMARY PRODUCTION
653 $aBELOWGROUND NET PRIMARY PRODUCTION
653 $aCENTURY MODEL
653 $aCUENCA DEL RIO DE LA PLATA
653 $aLAND USE - LAND COVER CHANGES
653 $aREMOTE SENSING
700 1 $aPIÑEIRO, G.
700 1 $aBALDI, G.
700 1 $aBAEZA, S.
700 1 $aLEZAMA, F.
700 1 $aALTESOR, A.
700 1 $aOESTERHELD, M.
773 $tRangeland Ecology & Management, 2010$gv. 63, no. 1 p. 94-108.
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