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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
21/02/2014 |
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Actualizado : |
07/03/2017 |
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Autor : |
CHESCHEIR, G.; SKAGGS, R.; AMATYA, D. |
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Título : |
Hydrologic impacts of converting grassland to managed forestland in Uruguay = Impactos hidrológicos por efecto de la conversión de pasturas a forestaciones bajo manejo en Uruguay. [Resumen]. |
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Fecha de publicación : |
2008 |
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Fuente / Imprenta : |
ln: Jornadas Forestales de Entre Ríos, 23., 2008 Oct. 30-31 : Concordia, Entre Ríos, Argentina. Actas. Entre Ríos (Argentina): INTA; AIANER, 2008. |
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Páginas : |
IV-8 p. |
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ISSN : |
1668-8279 |
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Idioma : |
Español |
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Notas : |
"Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA). Estación Experimental Concordia ; Asociación de Ingenieros Agrónomos del Nordeste de Entre Ríos (AIANER)" |
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Contenido : |
Over 500,000 hectares of grassland have been converted to managed forestland in Uruguay since 1990. This study was initiated to determine the hydrologic and water quality impacts of changing land use from grassland (pasture) to pine plantation in Uruguay. Two adjacent watersheds located on the El Cerro ranch in the Tacuarembo River basin were selected for a paired watershed study. Outflow rates and water table depths are continuously measured on each watershed. Rainfall and meteorological conditions are also measured continuously on the site. During the initial pretreatment period (July 01, 2000 through June 2003) both watersheds remained in pasture. One watershed (107 ha) was planted with loblolly pine Pinus teada L.) in July 2003, while the other (69 ha) remained in pasture. Data collected during the past 48 month period (July 01, 2003 through June 2007) represent the first four years of the treatment period. Significant changes in water yield were not observed during the first three years of the treatment period, but water yield reductions were observed during the fourth year. Most of the reductions were observed during a wet period that occurred after a prolonged dry period. Reductions in water yield occurred during storm flow events. Changes were not observed in the base flow from the watersheds. Peak flow rates from the forested land were only 25% of those observed before planting and the times to peaks were increased by 26 minutes. Data collection will continue through the growth cycle of the trees. MenosOver 500,000 hectares of grassland have been converted to managed forestland in Uruguay since 1990. This study was initiated to determine the hydrologic and water quality impacts of changing land use from grassland (pasture) to pine plantation in Uruguay. Two adjacent watersheds located on the El Cerro ranch in the Tacuarembo River basin were selected for a paired watershed study. Outflow rates and water table depths are continuously measured on each watershed. Rainfall and meteorological conditions are also measured continuously on the site. During the initial pretreatment period (July 01, 2000 through June 2003) both watersheds remained in pasture. One watershed (107 ha) was planted with loblolly pine Pinus teada L.) in July 2003, while the other (69 ha) remained in pasture. Data collected during the past 48 month period (July 01, 2003 through June 2007) represent the first four years of the treatment period. Significant changes in water yield were not observed during the first three years of the treatment period, but water yield reductions were observed during the fourth year. Most of the reductions were observed during a wet period that occurred after a prolonged dry period. Reductions in water yield occurred during storm flow events. Changes were not observed in the base flow from the watersheds. Peak flow rates from the forested land were only 25% of those observed before planting and the times to peaks were increased by 26 minutes. Data collection will continue throug... Presentar Todo |
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Palabras claves : |
AFFORESTATION; FOREST HYDROLOGY; LOBLOLLY PINE; PAIRED WATERSHEDS; PASTURAS; TACUAREMBO; WATER YIELD. |
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Thesagro : |
CALIDAD DEL AGUA; CAPAS FREATICAS; CUENCAS HIDROGRAFICAS; FORESTACION; HIDROLOGIA; PASTIZALES; PINUS TAEDA; URUGUAY. |
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Asunto categoría : |
K10 Producción forestal |
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Marc : |
LEADER 02837naa a2200361 a 4500
001 1026236
005 2017-03-07
008 2008 bl uuuu u00u1 u #d
022 $a1668-8279
100 1 $aCHESCHEIR, G.
245 $aHydrologic impacts of converting grassland to managed forestland in Uruguay = Impactos hidrológicos por efecto de la conversión de pasturas a forestaciones bajo manejo en Uruguay. [Resumen].
260 $c2008
300 $aIV-8 p.
500 $a"Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA). Estación Experimental Concordia ; Asociación de Ingenieros Agrónomos del Nordeste de Entre Ríos (AIANER)"
520 $aOver 500,000 hectares of grassland have been converted to managed forestland in Uruguay since 1990. This study was initiated to determine the hydrologic and water quality impacts of changing land use from grassland (pasture) to pine plantation in Uruguay. Two adjacent watersheds located on the El Cerro ranch in the Tacuarembo River basin were selected for a paired watershed study. Outflow rates and water table depths are continuously measured on each watershed. Rainfall and meteorological conditions are also measured continuously on the site. During the initial pretreatment period (July 01, 2000 through June 2003) both watersheds remained in pasture. One watershed (107 ha) was planted with loblolly pine Pinus teada L.) in July 2003, while the other (69 ha) remained in pasture. Data collected during the past 48 month period (July 01, 2003 through June 2007) represent the first four years of the treatment period. Significant changes in water yield were not observed during the first three years of the treatment period, but water yield reductions were observed during the fourth year. Most of the reductions were observed during a wet period that occurred after a prolonged dry period. Reductions in water yield occurred during storm flow events. Changes were not observed in the base flow from the watersheds. Peak flow rates from the forested land were only 25% of those observed before planting and the times to peaks were increased by 26 minutes. Data collection will continue through the growth cycle of the trees.
650 $aCALIDAD DEL AGUA
650 $aCAPAS FREATICAS
650 $aCUENCAS HIDROGRAFICAS
650 $aFORESTACION
650 $aHIDROLOGIA
650 $aPASTIZALES
650 $aPINUS TAEDA
650 $aURUGUAY
653 $aAFFORESTATION
653 $aFOREST HYDROLOGY
653 $aLOBLOLLY PINE
653 $aPAIRED WATERSHEDS
653 $aPASTURAS
653 $aTACUAREMBO
653 $aWATER YIELD
700 1 $aSKAGGS, R.
700 1 $aAMATYA, D.
773 $tln: Jornadas Forestales de Entre Ríos, 23., 2008 Oct. 30-31 : Concordia, Entre Ríos, Argentina. Actas. Entre Ríos (Argentina): INTA; AIANER, 2008.
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Registro original : |
INIA Tacuarembó (TBO) |
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