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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
Fecha : |
10/09/2014 |
Actualizado : |
28/07/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
JAURENA, M.; LEZAMA, F.; CRUZ, P. |
Afiliación : |
MARTIN ALEJANDRO JAURENA BARRIOS, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; FELIPE LEZAMA HUERTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Perennial grasses traits as functional markers of grazing intensity in basaltic grasslands of Uruguay. |
Fecha de publicación : |
2012 |
Fuente / Imprenta : |
Chilean Journal of Agricultural Research, 2012, v. 72, no.4, p. 541-549. |
ISSN : |
0718-5839 |
DOI : |
10.4067/S0718-58392012000400013 |
Idioma : |
Inglés |
Notas : |
Article history: Received, 1 March 2012. Accepted, 15 September 2012.
http://dx.doi.org/10.4067/S0718-58392012000400013 |
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 |
Palabras claves : |
DIAGNOSIS; MANAGEMENT; NATURAL GRASSLANDS; STOKING RATE. |
Thesagro : |
CAMBIOS ESTRUCTURALES EN PASTIZALES; GRAMINEAS PERENNES; PASTIZAL NATURAL. |
Asunto categoría : |
F40 Ecología vegetal |
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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Registros recuperados : 3 | |
2. | | JAURENA, M.; GIORELLO, D.; CRUZ, P.; LEMAIRE, G.; NABINGER, C. Medium term effects of water availability and N-P fertilization interactions on the productivity and composition of natural grasslands of Uruguay. In: JOINT MEETING OF THE MOUNTAIN PASTURES, MEDITERRANEAN FORAGE RESOURCES AND MOUNTAIN CHEESE NETWORKS, 2014, Clermont-Ferrand, FR. Forage resources and ecosystem services provided by mountain and mediterranean grasslands and rangelands: proceedings. Zaragoza: CIHEAM/INRA/FAO/VetAgro Sup Clermont-Ferrand/Montpellier SupAgro, 2014. p. 167-171. (Optiones Méditerranéennes, Series A: Mediterranean Seminars, 109)Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA La Estanzuela. |
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3. | | CRUZ, P.; LEZANA, L.; DURANTE, M.; JAURENA, M.; FIGARI, M.; DE OLIVEIRA, L.B.; THEAU, J.-P.; MASSA, E.; VIEGAS, J.; DE QUADROS, F.L.F. A functional classification of 63 common poaceae in the "campos" grasslands of South America. [Una clasificación funcional de 63 Poáceas comunes de los pastizales naturales de Sudamérica]. Ecologia Austral, August 2019, Volume 29, Issue 2, Pages 239-248. OPEN ACCESS. Article history: Recibido: 23 de Marzo de 2018 // Aceptado: 26 de Febrero de 2019.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Tacuarembó. |
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Registros recuperados : 3 | |
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