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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
16/03/2020 |
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Actualizado : |
16/03/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GALLEGO, F.; PARUELO, J.; BAEZA, S.; ALTESOR, A. |
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Afiliación : |
FEDERICO GALLEGO, Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Ciencias, Universidad de la República, Mdeo, Uruguay; Depto. Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía and IFEVA, UBA and CONICET, Bs.As., Argentina; SANTIAGO BAEZA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; ALICE ALTESOR, Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Distinct ecosystem types respond differentially to grazing exclosure. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Austral Ecology, 2020. Doi: https://doi.org/10.1111/aec.12870 |
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ISSN : |
1442-9985 |
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DOI : |
10.1111/aec.12870 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted for publication January 2020 / First published: 28 February 2020.
Corresponding author: Gallego, F., email:fgallego@fcien.edu.uy |
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Contenido : |
ABSTRACT.
Here, we evaluate the ecosystem functioning and the ecosystems services supply of different vegetation types (grasslands, shrublands and woodlands) under contrasting management regimes by comparing a protected area with the surrounding landscape, which has been subjected to human disturbance in the Eastern Hills of Uruguay. We propose, based on functional attributes and vegetation physiognomy, a State and Transition Model for the dynamics of the grassland?woodland mosaic. We used remote sensing techniques to: (i) develop a land-cover map of the study area based on supervised Landsat imagery classification, and (ii) compare attributes of the ecosystem functioning (productivity and seasonality) and service supply derived from the Normalized Difference Vegetation Index (NDVI) images provided by the moderate resolution imaging spectroradiometer (MODIS) sensor. The land-cover map showed that grasslands and shrublands were the most extensive land covers in the study area. These vegetation types presented higher productivity, seasonality and ecosystem service supply, outside the protected area than inside it. On the other hand, woodlands showed higher productivity, ecosystem service supply and lower seasonality inside the protected area than outside of it. Two axes represented the grassland?woodland mosaic dynamic: (i) the mean annual and (ii) the intra-annual coefficient of variation of the NDVI. Our results highlight that conservation of grasslands, shrublands and woodlands require different management strategies based on particular disturbance regimes like moderate grazing and controlled burns. Moderate disturbances may help to preserve ecosystem services provisioning in grasslands and shrublands. On the contrary, woodland conservation requires a more rigorous regime of protection against disturbances. © 2020 Ecological Society of Australia MenosABSTRACT.
Here, we evaluate the ecosystem functioning and the ecosystems services supply of different vegetation types (grasslands, shrublands and woodlands) under contrasting management regimes by comparing a protected area with the surrounding landscape, which has been subjected to human disturbance in the Eastern Hills of Uruguay. We propose, based on functional attributes and vegetation physiognomy, a State and Transition Model for the dynamics of the grassland?woodland mosaic. We used remote sensing techniques to: (i) develop a land-cover map of the study area based on supervised Landsat imagery classification, and (ii) compare attributes of the ecosystem functioning (productivity and seasonality) and service supply derived from the Normalized Difference Vegetation Index (NDVI) images provided by the moderate resolution imaging spectroradiometer (MODIS) sensor. The land-cover map showed that grasslands and shrublands were the most extensive land covers in the study area. These vegetation types presented higher productivity, seasonality and ecosystem service supply, outside the protected area than inside it. On the other hand, woodlands showed higher productivity, ecosystem service supply and lower seasonality inside the protected area than outside of it. Two axes represented the grassland?woodland mosaic dynamic: (i) the mean annual and (ii) the intra-annual coefficient of variation of the NDVI. Our results highlight that conservation of grasslands, shrublands and woodl... Presentar Todo |
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Palabras claves : |
Ecosystem services; Grassland; Normalized Difference Vegetation Index; Remote sensing; State and transition model; Woodland mosaic ecosystem. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02805naa a2200265 a 4500
001 1060920
005 2020-03-16
008 2020 bl uuuu u00u1 u #d
022 $a1442-9985
024 7 $a10.1111/aec.12870$2DOI
100 1 $aGALLEGO, F.
245 $aDistinct ecosystem types respond differentially to grazing exclosure.$h[electronic resource]
260 $c2020
500 $aArticle history: Accepted for publication January 2020 / First published: 28 February 2020. Corresponding author: Gallego, F., email:fgallego@fcien.edu.uy
520 $aABSTRACT. Here, we evaluate the ecosystem functioning and the ecosystems services supply of different vegetation types (grasslands, shrublands and woodlands) under contrasting management regimes by comparing a protected area with the surrounding landscape, which has been subjected to human disturbance in the Eastern Hills of Uruguay. We propose, based on functional attributes and vegetation physiognomy, a State and Transition Model for the dynamics of the grassland?woodland mosaic. We used remote sensing techniques to: (i) develop a land-cover map of the study area based on supervised Landsat imagery classification, and (ii) compare attributes of the ecosystem functioning (productivity and seasonality) and service supply derived from the Normalized Difference Vegetation Index (NDVI) images provided by the moderate resolution imaging spectroradiometer (MODIS) sensor. The land-cover map showed that grasslands and shrublands were the most extensive land covers in the study area. These vegetation types presented higher productivity, seasonality and ecosystem service supply, outside the protected area than inside it. On the other hand, woodlands showed higher productivity, ecosystem service supply and lower seasonality inside the protected area than outside of it. Two axes represented the grassland?woodland mosaic dynamic: (i) the mean annual and (ii) the intra-annual coefficient of variation of the NDVI. Our results highlight that conservation of grasslands, shrublands and woodlands require different management strategies based on particular disturbance regimes like moderate grazing and controlled burns. Moderate disturbances may help to preserve ecosystem services provisioning in grasslands and shrublands. On the contrary, woodland conservation requires a more rigorous regime of protection against disturbances. © 2020 Ecological Society of Australia
653 $aEcosystem services
653 $aGrassland
653 $aNormalized Difference Vegetation Index
653 $aRemote sensing
653 $aState and transition model
653 $aWoodland mosaic ecosystem
700 1 $aPARUELO, J.
700 1 $aBAEZA, S.
700 1 $aALTESOR, A.
773 $tAustral Ecology, 2020. Doi: https://doi.org/10.1111/aec.12870
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Registro original : |
INIA Las Brujas (LB) |
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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. |
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Fecha actual : |
12/09/2014 |
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Actualizado : |
23/02/2015 |
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Autor : |
OLMOS, F.; SOCA, P.; SOSA, M.; DO CARMO, M.; CAL, V.; BENTANCUR, D.; GENRO, C.; GARCÍA, E. |
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Afiliación : |
FERNANDO ELCEAR OLMOS LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARTIN DO CARMO CORUJO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Respuesta al manejo de factores ecológicos en Coelorachis selloana (HACK) en la región Noreste de Uruguay |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Revista de la Facultad de Agronomía UNLPam, 2013, v. 22, Serie supl.2, p. 123-128 |
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Volumen : |
22 |
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Páginas : |
123-128 |
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Idioma : |
Español |
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Contenido : |
Se presentan los resultados de 5 experimentos con Coelorachis selloana, una especie
nativa de la región noreste de Uruguay; se estudiaron factores ecológicos en condiciones
de campo y en el invernáculo. La especie se encontró principalmente en los suelos arcillosos
y respondió linealmente a la aplicación de nitrógeno hasta 100 unidades; el estrés
hídrico afectó significativa y negativamente su producción total de materia seca comparado
con un testigo con riego, la alta frecuencia e intensidad de corte (corte a 2 cm. y 2 semanas)
redujeron significativamente su productividad comparado con una situación de alivio
(corte cada 8 semanas); en condiciones de campo, una mayor oferta de forraje incrementó
significativamente su presencia durante la estación de crecimiento comparado con una
menor oferta de forraje. |
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Thesagro : |
COELORACHIS; ESTRES HIDRICO; NITROGENO; URUGUAY. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 01581naa a2200277 a 4500
001 1050188
005 2015-02-23
008 2013 bl uuuu u00u1 u #d
100 1 $aOLMOS, F.
245 $aRespuesta al manejo de factores ecológicos en Coelorachis selloana (HACK) en la región Noreste de Uruguay
260 $c2013
300 $a123-128 22
490 $v22
520 $aSe presentan los resultados de 5 experimentos con Coelorachis selloana, una especie nativa de la región noreste de Uruguay; se estudiaron factores ecológicos en condiciones de campo y en el invernáculo. La especie se encontró principalmente en los suelos arcillosos y respondió linealmente a la aplicación de nitrógeno hasta 100 unidades; el estrés hídrico afectó significativa y negativamente su producción total de materia seca comparado con un testigo con riego, la alta frecuencia e intensidad de corte (corte a 2 cm. y 2 semanas) redujeron significativamente su productividad comparado con una situación de alivio (corte cada 8 semanas); en condiciones de campo, una mayor oferta de forraje incrementó significativamente su presencia durante la estación de crecimiento comparado con una menor oferta de forraje.
650 $aCOELORACHIS
650 $aESTRES HIDRICO
650 $aNITROGENO
650 $aURUGUAY
700 1 $aSOCA, P.
700 1 $aSOSA, M.
700 1 $aDO CARMO, M.
700 1 $aCAL, V.
700 1 $aBENTANCUR, D.
700 1 $aGENRO, C.
700 1 $aGARCÍA, E.
773 $tRevista de la Facultad de Agronomía UNLPam, 2013$gv. 22, Serie supl.2, p. 123-128
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