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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
12/09/2014 |
Actualizado : |
11/02/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
PARUELO, J.M.; PIÑEIRO, G.; BALDI, G.; BAEZA, S.; LEZAMA, F.; ALTESOR, A.; OESTERHELD, M. |
Afiliación : |
FELIPE LEZAMA HUERTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Carbon stocks and fluxes in rangelands of the Río de la plata basin. |
Fecha de publicación : |
2010 |
Fuente / Imprenta : |
Rangeland Ecology & Management, 2010, v. 63, no. 1 p. 94-108. |
Volumen : |
63 |
ISSN : |
1551-5028 |
DOI : |
10.2111/08-055.1 |
Idioma : |
Inglés |
Notas : |
Article history: Manuscript received 17 March 2008; manuscript accepted 3 April 2009. |
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 |
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. |
Thesagro : |
CARBONO; MEDICIONES; MODELOS MATEMATICOS; PASTIZALES; TELEDETECCION. |
Asunto categoría : |
F40 Ecología vegetal |
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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INIA Treinta y Tres (TT) |
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
21/07/2021 |
Tipo de producción científica : |
Documentos |
Autor : |
DÍAZ DE ACKERMANN, M. |
Afiliación : |
MARTHA DÍAZ DE ACKERMANN, CIAAB (Centro de Investigaciones Agrícolas "Alberto Boerger"). |
Título : |
Sanidad: desarrollo de las enfermedades en relación a las condiciones climáticas. |
Fecha de publicación : |
1985 |
Fuente / Imprenta : |
ln: Jornada Cultivos de Invierno, 1985 may : La Estanzuela [Memorias]. Montevideo (Uruguay): CIAAB, 1985. |
Páginas : |
p.1-4 (sic). |
Idioma : |
Español |
Thesagro : |
ENFERMEDADES DE LAS PLANTAS; EVALUACION; FACTORES CLIMATICOS; FUNGICIDAS; FUSARIUM; SEPTORIA; TEMPERATURA; TRITICUM AESTIVUM. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15875/1/CIAAB.-Jornada-Cultivos-de-Invierno.1985.pdf;invierno#page=30
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Marc : |
LEADER 00679naa a2200217 a 4500 001 1045950 005 2021-07-21 008 1985 bl uuuu u00u1 u #d 100 1 $aDÍAZ DE ACKERMANN, M. 245 $aSanidad$bdesarrollo de las enfermedades en relación a las condiciones climáticas. 260 $c1985 300 $ap.1-4 (sic). 650 $aENFERMEDADES DE LAS PLANTAS 650 $aEVALUACION 650 $aFACTORES CLIMATICOS 650 $aFUNGICIDAS 650 $aFUSARIUM 650 $aSEPTORIA 650 $aTEMPERATURA 650 $aTRITICUM AESTIVUM 773 $tln: Jornada Cultivos de Invierno, 1985 may : La Estanzuela [Memorias]. Montevideo (Uruguay): CIAAB, 1985.
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