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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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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
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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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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| Registros recuperados : 3 | |
| 1. |  | WILLEM, R.; NERVI, E.; BAETHGEN, W. Integrated catchment models for policy development and decision making. [Modelos integrados de cuencas hidrográficas para el desarrollo de políticas y la toma de decisiones.]. [Modelos integrados de baciaspara desenvolvimento e políticas e tomada de decisões.]. Advances in Water in Agroscience. Integrated catchment management. Agrociencia Uruguay, 2023, Vol.27(NE1), e1194. https://doi.org/10.31285/AGRO.27.1194 -- OPEN ACCESS. Article history: Received 15 May 2023; Accepted 14 August 2023; Published 06 February 2024. -- Editor: Ángela Gorgoglione, Universidad de la República, Montevideo, Uruguay. -- Correspondence: Willem Vervoort, willem.vervoort@sydney.edu.au...| Tipo: Artículos en Revistas Indexadas Nacionales | Circulación / Nivel : Nacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 2. | | GELÓS, M.; NEIGHBUR, N.; KOK, P.; BADANO, L.; HASTINGS, F.; NERVI, E.; ALONSO, J.; NAVAS, R.; VERVOORT, W.; BAETHGEN, W. On the prediction of phosphorus fluxes in the santa lucía basin under different land use and management practices using swat model. [abstract] Theme 5 - Impact of phosphorus on environmental quality and on biodiversity. Oral presentation. In: Michelini, D.; Garaycochea, S. (Eds.). 7th Phosphorus in Soils and Plants Symposium (PSP7). "Towards a sustainable phosphorus utilization in agroecosystems." Book of abstracts. PSP7, 3-7 October 2022, Montevideo, Uruguay. p.81. Published By: The organizing committee of the 7th Symposium on Phosphorus in Soils and Plants (PSP7)- National Agricultural Research Institute and School of Agronomy, Universidad de la República, Uruguay.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
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| 3. | | NERVI, E.; SCHINCA, C.; CARBAJALES, A.; DE GUIDA, M.; PIPPOLO, D.; DABEZIES, M.; DEMARÍA, K.; OLIVERA, A.; MARTÍNEZ, M.; BOCCARDI, L.; MIGUEZ, D.; VILLANUEVA, J. P.; PARDO, H.; LAMELA, S.; PECOITS, E.; CABEZAS, A.; MOIZO, P.; CAFARO, N.; CARRASCO-LETELIER, L. Hacia el uso sostenible del agua en la producción. Proyecto Custodia del Agua en la Cuenca del Santa Lucía. Revista INIA Uruguay, 2020, no. 60, p. 75-78. (Revista INIA; 60).| Tipo: Artículos en Revistas Agropecuarias |
| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas. |
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| Registros recuperados : 3 | |
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