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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
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Fecha : |
10/09/2014 |
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Actualizado : |
28/07/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
JAURENA, M.; LEZAMA, F.; CRUZ, P. |
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Afiliación : |
MARTIN ALEJANDRO JAURENA BARRIOS, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; FELIPE LEZAMA HUERTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Perennial grasses traits as functional markers of grazing intensity in basaltic grasslands of Uruguay. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Chilean Journal of Agricultural Research, 2012, v. 72, no.4, p. 541-549. |
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ISSN : |
0718-5839 |
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DOI : |
10.4067/S0718-58392012000400013 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received, 1 March 2012. Accepted, 15 September 2012.
http://dx.doi.org/10.4067/S0718-58392012000400013 |
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Contenido : |
Abstract:
Natural grasslands in the basaltic region of Uruguay are threatened by an increase in stocking rates and changes in land use. To assess the effect of grazing intensification, plant functional types are proposed as simple tools to aid the monitoring and management of vegetation. In the present study we evaluated the effect of stocking rate increase at community level taking into account plant traits of 23 dominant perennial grass species. In order to identify plant functional types, we determined the grazing response in an experiment with two wethers stocking rates (0.78 and 1.56 livestock units ha-1) quantifying species cover and traits values. Leaf dry matter content (LDMC) and specific leaf area (SLA) were the traits that best described the perennial grasses response to the stocking rate increase and therefore are suggested to be used as functional markers. Three functional types were identified. Low stocking rates were related to functional type A (tall, warm season species with low SLA and high LDMC and functional type B (tall, cool-season species, with intermediate levels of leaf traits). On the other hand, high stocking rate encouraged functional type C (prostrate, warm season species, with high SLA and low LDMC). The classification of a highly diverse community into three functional types and the selection of traits as functional markers candidates is an innovative approach to develop simple and general methods to diagnosis the state of basaltic grasslands in Uruguay and to advise on its management. MenosAbstract:
Natural grasslands in the basaltic region of Uruguay are threatened by an increase in stocking rates and changes in land use. To assess the effect of grazing intensification, plant functional types are proposed as simple tools to aid the monitoring and management of vegetation. In the present study we evaluated the effect of stocking rate increase at community level taking into account plant traits of 23 dominant perennial grass species. In order to identify plant functional types, we determined the grazing response in an experiment with two wethers stocking rates (0.78 and 1.56 livestock units ha-1) quantifying species cover and traits values. Leaf dry matter content (LDMC) and specific leaf area (SLA) were the traits that best described the perennial grasses response to the stocking rate increase and therefore are suggested to be used as functional markers. Three functional types were identified. Low stocking rates were related to functional type A (tall, warm season species with low SLA and high LDMC and functional type B (tall, cool-season species, with intermediate levels of leaf traits). On the other hand, high stocking rate encouraged functional type C (prostrate, warm season species, with high SLA and low LDMC). The classification of a highly diverse community into three functional types and the selection of traits as functional markers candidates is an innovative approach to develop simple and general methods to diagnosis the state of basaltic grasslands i... Presentar Todo |
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Palabras claves : |
DIAGNOSIS; MANAGEMENT; NATURAL GRASSLANDS; STOKING RATE. |
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Thesagro : |
CAMBIOS ESTRUCTURALES EN PASTIZALES; GRAMINEAS PERENNES; PASTIZAL NATURAL. |
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Asunto categoría : |
F40 Ecología vegetal |
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Marc : |
LEADER 02464naa a2200265 a 4500
001 1061241
005 2020-07-28
008 2012 bl uuuu u00u1 u #d
022 $a0718-5839
024 7 $a10.4067/S0718-58392012000400013$2DOI
100 1 $aJAURENA, M.
245 $aPerennial grasses traits as functional markers of grazing intensity in basaltic grasslands of Uruguay.$h[electronic resource]
260 $c2012
500 $aArticle history: Received, 1 March 2012. Accepted, 15 September 2012. http://dx.doi.org/10.4067/S0718-58392012000400013
520 $aAbstract: Natural grasslands in the basaltic region of Uruguay are threatened by an increase in stocking rates and changes in land use. To assess the effect of grazing intensification, plant functional types are proposed as simple tools to aid the monitoring and management of vegetation. In the present study we evaluated the effect of stocking rate increase at community level taking into account plant traits of 23 dominant perennial grass species. In order to identify plant functional types, we determined the grazing response in an experiment with two wethers stocking rates (0.78 and 1.56 livestock units ha-1) quantifying species cover and traits values. Leaf dry matter content (LDMC) and specific leaf area (SLA) were the traits that best described the perennial grasses response to the stocking rate increase and therefore are suggested to be used as functional markers. Three functional types were identified. Low stocking rates were related to functional type A (tall, warm season species with low SLA and high LDMC and functional type B (tall, cool-season species, with intermediate levels of leaf traits). On the other hand, high stocking rate encouraged functional type C (prostrate, warm season species, with high SLA and low LDMC). The classification of a highly diverse community into three functional types and the selection of traits as functional markers candidates is an innovative approach to develop simple and general methods to diagnosis the state of basaltic grasslands in Uruguay and to advise on its management.
650 $aCAMBIOS ESTRUCTURALES EN PASTIZALES
650 $aGRAMINEAS PERENNES
650 $aPASTIZAL NATURAL
653 $aDIAGNOSIS
653 $aMANAGEMENT
653 $aNATURAL GRASSLANDS
653 $aSTOKING RATE
700 1 $aLEZAMA, F.
700 1 $aCRUZ, P.
773 $tChilean Journal of Agricultural Research, 2012$gv. 72, no.4, p. 541-549.
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| 2. |  | UETSUKI, Y. Estrategia futura del mejoramiento genético de Eucalyptus en Uruguay. ln: INIA TACUAREMBÓ; JICA (JAPAN INTERNACIONAL COOPERATION AGENCY). Mejoramiento de especies forestales: logros y perspectivas. Seminario, 12 de febrero, Tacuarembó, 1998. Tacuarembó (Uruguay): INIA, 1998. p. 79-85 (INIA Serie Actividades de Difusión ; 157) Proyecto Forestal INIA - JICA.| Biblioteca(s): INIA Tacuarembó. |
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| 9. | | DE MELLO, J.C.; IIZUKA, K.; BENNADJI, Z.; BALMELLI, G.; UETSUKI, Y. Evaluación de características de la madera en Eucalyptus grandis: resumen. ln: INIA TACUAREMBÓ; JICA (JAPAN INTERNACIONAL COOPERATION AGENCY). SEMINARIO DE CLAUSURA, Tacuarembó, Uruguay, 6 de marzo, 2002. Avances en mejoramiento genético de Eucalyptus grandis. Tacuarembó (Uruguay): INIA, JICA, 2002. p. 4 (INIA - JICA Aftercare Forestal 2000-2002) (INIA Serie Actividades de Difusión ; 280)| Biblioteca(s): INIA Tacuarembó. |
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