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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
24/06/2021 |
Actualizado : |
24/06/2021 |
Autor : |
CASTAÑO-SÁNCHEZ, J.P.; IZAURRALE, R. C.; PRINCE, S. D. |
Afiliación : |
JOSÉ P. CASTAÑO-SÁNCHEZ, Department of Geographical Sciences, University of Maryland, USA // Pasture Systems and Watershed Management Research Unit, USDA-ARS, USA.; Department of Geographical Sciences, University of Maryland, USA.; STEPHEN D. PRINCE, Department of Geographical Sciences, University of Maryland, USA. |
Título : |
Land-use conversions from managed grasslands to croplands in Uruguay increase medium-term carbon emissions to the atmosphere. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Journal of Land Use Science, June 2021, Vol. 16, no. 3, p. 249-259. Doi: https://doi.org/10.1080/1747423X.2021.1933227 |
DOI : |
10.1080/1747423X.2021.1933227 |
Idioma : |
Inglés |
Notas : |
Article history: Received 24 Jul 2020, Accepted 17 May 2021, Published online: 16 Jun 2021. Contact: José P. Castaño-Sánchez jcastano@terpmail.umd.edu |
Contenido : |
Globally, significant land conversions of traditionally managed temperate grasslands to croplands were taking place. Among these is South-Central Uruguay where changes in recent decades have highly likely impacted plant productivity, soil quality, and carbon fluxes at a regional scale. A geospatial version of the biophysical model EPIC was developed and validated (Geospatial-EPIC-UY). An analysis of the potential impact of the land use change on the carbon fluxes was performed, considering the conversion of all the suitable cropping areas over a 15-year period. Modeled net ecosystem exchange (NEE) showed that, on average, grasslands C emissions were close to neutral (0.1 Mg CO2 ha−1 year−1), while croplands contributed almost 7 times this value. Also, the inter-annual variation of grassland NEE was significantly less than that of the cropland. These results highlight the potential C losses under extended land conversions, which could be attenuated or even reverted if best management practices were implemented. |
Palabras claves : |
CARBON DYNAMICS; CARBON FLUXES; CROPLAND ECOSYSTEM; EPIC MODEL; NATURAL GRASSLAND ECOSYSTEM; NEE; NPP; REGIONAL SCALE; SOIL CARBON; URUGUAY. |
Asunto categoría : |
-- |
Marc : |
LEADER 02112naa a2200289 a 4500 001 1062154 005 2021-06-24 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1080/1747423X.2021.1933227$2DOI 100 1 $aCASTAÑO-SÁNCHEZ, J.P. 245 $aLand-use conversions from managed grasslands to croplands in Uruguay increase medium-term carbon emissions to the atmosphere.$h[electronic resource] 260 $c2021 500 $aArticle history: Received 24 Jul 2020, Accepted 17 May 2021, Published online: 16 Jun 2021. Contact: José P. Castaño-Sánchez jcastano@terpmail.umd.edu 520 $aGlobally, significant land conversions of traditionally managed temperate grasslands to croplands were taking place. Among these is South-Central Uruguay where changes in recent decades have highly likely impacted plant productivity, soil quality, and carbon fluxes at a regional scale. A geospatial version of the biophysical model EPIC was developed and validated (Geospatial-EPIC-UY). An analysis of the potential impact of the land use change on the carbon fluxes was performed, considering the conversion of all the suitable cropping areas over a 15-year period. Modeled net ecosystem exchange (NEE) showed that, on average, grasslands C emissions were close to neutral (0.1 Mg CO2 ha−1 year−1), while croplands contributed almost 7 times this value. Also, the inter-annual variation of grassland NEE was significantly less than that of the cropland. These results highlight the potential C losses under extended land conversions, which could be attenuated or even reverted if best management practices were implemented. 653 $aCARBON DYNAMICS 653 $aCARBON FLUXES 653 $aCROPLAND ECOSYSTEM 653 $aEPIC MODEL 653 $aNATURAL GRASSLAND ECOSYSTEM 653 $aNEE 653 $aNPP 653 $aREGIONAL SCALE 653 $aSOIL CARBON 653 $aURUGUAY 700 1 $aIZAURRALE, R. C. 700 1 $aPRINCE, S. D. 773 $tJournal of Land Use Science, June 2021, Vol. 16, no. 3, p. 249-259. Doi: https://doi.org/10.1080/1747423X.2021.1933227
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INIA Treinta y Tres (TT) |
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
25/04/2018 |
Actualizado : |
13/09/2018 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
CUADRO, R.; MOLFINO, J.H.; QUINCKE, A. |
Afiliación : |
WASHINGTON ROBIN CUADRO LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Sistema de soporte para la recomendación de fertilización fosfatada en pasturas. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
Informaciones Agronómicas de Hispanoamérica, no. 29, p. 14-17, 2018. |
ISSN : |
2222-016X |
Idioma : |
Español |
Contenido : |
Los suelos del Uruguay son naturalmente deficientes en su capacidad de suministro de fósforo. Así, el fertilizante fosfatado es un insumo central en pasturas a base de leguminosas. Las recomendaciones vigentes presentan limitantes para implementar un adecuado manejo de la fertilización fosfatada en forma generalizada a nivel de país. Este trabajo describe un sistema de soporte, actualmente en desarrollo, para la recomendación de fertilización fosfatada en pasturas. |
Thesagro : |
PASTURAS. |
Asunto categoría : |
A50 Investigación agraria |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9387/1/IAH-29-Abril-2018.pdf
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Marc : |
LEADER 00980naa a2200169 a 4500 001 1058481 005 2018-09-13 008 2018 bl uuuu u00u1 u #d 022 $a2222-016X 100 1 $aCUADRO, R. 245 $aSistema de soporte para la recomendación de fertilización fosfatada en pasturas.$h[electronic resource] 260 $c2018 520 $aLos suelos del Uruguay son naturalmente deficientes en su capacidad de suministro de fósforo. Así, el fertilizante fosfatado es un insumo central en pasturas a base de leguminosas. Las recomendaciones vigentes presentan limitantes para implementar un adecuado manejo de la fertilización fosfatada en forma generalizada a nivel de país. Este trabajo describe un sistema de soporte, actualmente en desarrollo, para la recomendación de fertilización fosfatada en pasturas. 650 $aPASTURAS 700 1 $aMOLFINO, J.H. 700 1 $aQUINCKE, A. 773 $tInformaciones Agronómicas de Hispanoamérica, no. 29, p. 14-17, 2018.
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