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| Registros recuperados : 20 | |
| 3. |  | GUIDO, A.; QUIÑONES, A. Eragrostis plana Nees (capín Annoni) en Uruguay. Capítulo 3. In: Brazeiro, A.; Bresciano, D.: Brugnoli, E,: Iturburu, M. (Ed). 2021. Especies exóticas invasoras de Uruguay: distribución, impactos socioambientales y estrategias de gestión. Montevideo (UY): RETEMA-UdelaR, CEEI-Ministerio de Ambiente, Montevideo. p. 63-73.| Biblioteca(s): INIA Treinta y Tres. |
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| 7. | | QUIÑONES, A.; GUIDO, A.; BRESCIANO, D. Dispersión y reclutamiento de capín Annoni en un pastizal. In: Sociedad Uruguaya de Fitopatología Jornada Uruguaya de Fitopatología, 6., Jornada Uruguaya de Protección Vegetal, 4., 21-22 octubre, 2021, Montevideo, Uruguay. Libro de resúmenes. Montevideo (UY): Sociedad Uruguay de Fitopatología (SUFIT), 2021. p. 74 Financiamiento: Instituto Nacional de Investigación Agropecuaria.| Biblioteca(s): INIA Treinta y Tres. |
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| 20. | | SAVIAN, J.V.; QUIÑONES, A.; PRAVIA, V.; CARDOZO, G.; GUIDO, A.; DEVINCENZI, T.; JAURENA, M.; ROVIRA, P.J.; LEONI, C.; CIGANDA, V.; DE BARBIERI, I.; AYALA, W.; CIAPPESONI, G.; LATTANZI, F. Un nuevo experimento de largo plazo en INIA Treinta y Tres con foco en la sostenibilidad del campo natural. Pasturas. Revista INIA Uruguay, Diciembre 2021, no.67, p.29-31. (Revista INIA; 67).| Biblioteca(s): INIA Las Brujas. |
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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
14/11/2022 |
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Actualizado : |
14/11/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
PAÑELLA, P.G.; GUIDO, A.; JAURENA, M.; CARDOZO, G.; LEZAMA, F. |
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Afiliación : |
PEDRO G. PAÑELLA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; ANACLARA GUIDO, Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.; MARTIN ALEJANDRO JAURENA BARRIOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FELIPE LEZAMA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Fertilization and overseeding legumes on native grasslands leads to a hardly reversible degraded state. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Applied Vegetation Science, 2022, https://doi.org/10.1111/avsc.12693 (In press). |
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DOI : |
10.1111/avsc.12693 |
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Idioma : |
Inglés |
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Notas : |
Funding information: INNOVAGRO project 148811, ANII. Comisión Sectorial de Investigación Científica - UdelaR (Grupo I+D 433).
Article history: First Publication, 25 October 2022. |
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Contenido : |
Diverse practices related to livestock intensification often have a deep impact on grassland diversity. Moreover, alternative degraded states that are hardly reversible can be observed, resulting in low-diversity communities, dominated by invasive alien species. Therefore, the need arises to understand aboveground vegetation dynamics in these communities, and the potential of the seed bank to revert this degradation. In this study, we evaluated the impact of overseeding alien legumes coupled with phosphorus fertilization over natural grasslands, in terms of aboveground vegetation composition and soil seed bank. This was performed in a long-term experiment (23 years) in eastern Uruguay with three treatments: (1) native grasslands and native grasslands overseeded with alien legumes and fertilized at a (2) moderate or (3) high phosphorus dosage. Vegetation surveys were done in 2009 and 2019 to evaluate changes, and the seed bank was sampled in 2019. Native grasslands had higher total richness, native species richness and abundance for both years, as well as a higher species turnover in both temporal and spatial dimensions. The dominant species in overseeded treatments was the invasive alien grass Cynodon dactylon. The seed bank was similar between treatments in terms of seed density and richness, but differed in composition, with a higher abundance of alien species in the overseeded grassland. Seed banks showed low similarity with the aboveground vegetation. The overseeded grassland appears to be in a degraded state of low species diversity, with low turnover and invaded by alien species. The seeds in the soil appear to be insufficient to revert this condition and might be a hindrance for restoration due to the high abundance of alien species. Grasslands that have been degraded by long periods of fertilization and overseeding legumes present a great challenge for ecological restoration, since invasive alien species should be controlled before native species are reintroduced. MenosDiverse practices related to livestock intensification often have a deep impact on grassland diversity. Moreover, alternative degraded states that are hardly reversible can be observed, resulting in low-diversity communities, dominated by invasive alien species. Therefore, the need arises to understand aboveground vegetation dynamics in these communities, and the potential of the seed bank to revert this degradation. In this study, we evaluated the impact of overseeding alien legumes coupled with phosphorus fertilization over natural grasslands, in terms of aboveground vegetation composition and soil seed bank. This was performed in a long-term experiment (23 years) in eastern Uruguay with three treatments: (1) native grasslands and native grasslands overseeded with alien legumes and fertilized at a (2) moderate or (3) high phosphorus dosage. Vegetation surveys were done in 2009 and 2019 to evaluate changes, and the seed bank was sampled in 2019. Native grasslands had higher total richness, native species richness and abundance for both years, as well as a higher species turnover in both temporal and spatial dimensions. The dominant species in overseeded treatments was the invasive alien grass Cynodon dactylon. The seed bank was similar between treatments in terms of seed density and richness, but differed in composition, with a higher abundance of alien species in the overseeded grassland. Seed banks showed low similarity with the aboveground vegetation. The overseede... Presentar Todo |
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Palabras claves : |
DIVERSITY; FERTILIZATION; INVASION; OVERSEEDED; RESTORATION. |
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Asunto categoría : |
H01 Protección de plantas - Aspectos generales |
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Marc : |
LEADER 02903naa a2200253 a 4500
001 1063719
005 2022-11-14
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1111/avsc.12693$2DOI
100 1 $aPAÑELLA, P.G.
245 $aFertilization and overseeding legumes on native grasslands leads to a hardly reversible degraded state.
260 $c2022
500 $aFunding information: INNOVAGRO project 148811, ANII. Comisión Sectorial de Investigación Científica - UdelaR (Grupo I+D 433). Article history: First Publication, 25 October 2022.
520 $aDiverse practices related to livestock intensification often have a deep impact on grassland diversity. Moreover, alternative degraded states that are hardly reversible can be observed, resulting in low-diversity communities, dominated by invasive alien species. Therefore, the need arises to understand aboveground vegetation dynamics in these communities, and the potential of the seed bank to revert this degradation. In this study, we evaluated the impact of overseeding alien legumes coupled with phosphorus fertilization over natural grasslands, in terms of aboveground vegetation composition and soil seed bank. This was performed in a long-term experiment (23 years) in eastern Uruguay with three treatments: (1) native grasslands and native grasslands overseeded with alien legumes and fertilized at a (2) moderate or (3) high phosphorus dosage. Vegetation surveys were done in 2009 and 2019 to evaluate changes, and the seed bank was sampled in 2019. Native grasslands had higher total richness, native species richness and abundance for both years, as well as a higher species turnover in both temporal and spatial dimensions. The dominant species in overseeded treatments was the invasive alien grass Cynodon dactylon. The seed bank was similar between treatments in terms of seed density and richness, but differed in composition, with a higher abundance of alien species in the overseeded grassland. Seed banks showed low similarity with the aboveground vegetation. The overseeded grassland appears to be in a degraded state of low species diversity, with low turnover and invaded by alien species. The seeds in the soil appear to be insufficient to revert this condition and might be a hindrance for restoration due to the high abundance of alien species. Grasslands that have been degraded by long periods of fertilization and overseeding legumes present a great challenge for ecological restoration, since invasive alien species should be controlled before native species are reintroduced.
653 $aDIVERSITY
653 $aFERTILIZATION
653 $aINVASION
653 $aOVERSEEDED
653 $aRESTORATION
700 1 $aGUIDO, A.
700 1 $aJAURENA, M.
700 1 $aCARDOZO, G.
700 1 $aLEZAMA, F.
773 $tApplied Vegetation Science, 2022, https://doi.org/10.1111/avsc.12693 (In press).
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