15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site
In Argentinean Patagonia, there is an extensive area from 36º 30´ to 56º 00´SL where Nothofagus antarctica (ñire) native forests are distributed in a narrow strip being the main use as silvopastoral system. In these systems, understory vegetation (composed mainly by grasses) is grazed mainly for cat...
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| Formato: | info:ar-repo/semantics/documento de conferencia |
| Lenguaje: | Inglés |
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University of Copenhagen
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/9679 http://www.ipnc2017.org/the-proceedings-book |
| _version_ | 1855036255643893760 |
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| author | Gargaglione, Veronica Beatriz Peri, Pablo Luis Bahamonde, Héctor Alejandro |
| author_browse | Bahamonde, Héctor Alejandro Gargaglione, Veronica Beatriz Peri, Pablo Luis |
| author_facet | Gargaglione, Veronica Beatriz Peri, Pablo Luis Bahamonde, Héctor Alejandro |
| author_sort | Gargaglione, Veronica Beatriz |
| collection | INTA Digital |
| description | In Argentinean Patagonia, there is an extensive area from 36º 30´ to 56º 00´SL where Nothofagus antarctica (ñire) native forests are distributed in a narrow strip being the main use as silvopastoral system. In these systems, understory vegetation (composed mainly by grasses) is grazed mainly for cattle and sheep (Peri & Ormaechea 2013). Next to the N. antarctica forest, in the ecotone zone, there are grasslands also used for extensive sheep or cattle production with many grass species in common with understory forest species. Likewise, as nitrogen is usually a limiting nutrient in most of the ecosystems, we aimed to know how grasses utilize and distribute available N when they are growing in open areas or close to trees. It is known that trees may compete for resources, but they
may also increase soil fertility, microbialactivity orimprove water availabilityby reducing water loss from evapotranspiration inshade (i.e.Mordeletand Le Roux 2006; Simmons et al. 2008). The aim of this work was to study 15N uptake and distribution in grasses growing in undertory N. antarctica trees compared with grasses growing in an open grassland. We hipotethized that in these austral
ecosystems, when water may be limiting owing to strong summer winds, grasses under trees could better absorb and assimilate the available N than grasses growing in open landscapes. |
| format | info:ar-repo/semantics/documento de conferencia |
| id | INTA9679 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | University of Copenhagen |
| publisherStr | University of Copenhagen |
| record_format | dspace |
| spelling | INTA96792021-06-29T11:18:25Z 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site Gargaglione, Veronica Beatriz Peri, Pablo Luis Bahamonde, Héctor Alejandro Nothofagus Sistemas Silvopascícolas Pastizales Nitrógeno Isotopos Recursos Silvopastoral Systems Pastures Nitrogen Isotopes Resources Understorey Competition for Resources Sotobosque Competencia por Recursos In Argentinean Patagonia, there is an extensive area from 36º 30´ to 56º 00´SL where Nothofagus antarctica (ñire) native forests are distributed in a narrow strip being the main use as silvopastoral system. In these systems, understory vegetation (composed mainly by grasses) is grazed mainly for cattle and sheep (Peri & Ormaechea 2013). Next to the N. antarctica forest, in the ecotone zone, there are grasslands also used for extensive sheep or cattle production with many grass species in common with understory forest species. Likewise, as nitrogen is usually a limiting nutrient in most of the ecosystems, we aimed to know how grasses utilize and distribute available N when they are growing in open areas or close to trees. It is known that trees may compete for resources, but they may also increase soil fertility, microbialactivity orimprove water availabilityby reducing water loss from evapotranspiration inshade (i.e.Mordeletand Le Roux 2006; Simmons et al. 2008). The aim of this work was to study 15N uptake and distribution in grasses growing in undertory N. antarctica trees compared with grasses growing in an open grassland. We hipotethized that in these austral ecosystems, when water may be limiting owing to strong summer winds, grasses under trees could better absorb and assimilate the available N than grasses growing in open landscapes. EEA Santa Cruz Fil: Gargaglione, Verónica Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz. Santa Cruz; Argentina. Fil: Gargaglione, Verónica Beatriz. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Gargaglione, Verónica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Bahamonde, Héctor Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Bahamonde, Héctor Alejandro. Universidad Nacional de la Patagonia Austral; Argentina. 2021-06-29T11:11:22Z 2021-06-29T11:11:22Z 2017-08-21 info:ar-repo/semantics/documento de conferencia info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/9679 http://www.ipnc2017.org/the-proceedings-book GARGAGLIONE V.; PERI P.L.; BAHAMONDE H. (2017) 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site. Proceedings XVIII International Plant Nutrition Colloquium - IPNC 2017, pp. 2-4. University of Copenhagen, Copenhagen, Denmark, 21-24 August 2017. 978-87-996274-0-0 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf University of Copenhagen Proceedings XVIII International Plant Nutrition Colloquium - IPNC 2017, University of Copenhagen, Copenhagen, Denmark, 21-24 August 2017. p. 2-4. |
| spellingShingle | Nothofagus Sistemas Silvopascícolas Pastizales Nitrógeno Isotopos Recursos Silvopastoral Systems Pastures Nitrogen Isotopes Resources Understorey Competition for Resources Sotobosque Competencia por Recursos Gargaglione, Veronica Beatriz Peri, Pablo Luis Bahamonde, Héctor Alejandro 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site |
| title | 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site |
| title_full | 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site |
| title_fullStr | 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site |
| title_full_unstemmed | 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site |
| title_short | 15N uptake and distribution in grasses growing under Nothofagus antarctica vs. grasses in an open site |
| title_sort | 15n uptake and distribution in grasses growing under nothofagus antarctica vs grasses in an open site |
| topic | Nothofagus Sistemas Silvopascícolas Pastizales Nitrógeno Isotopos Recursos Silvopastoral Systems Pastures Nitrogen Isotopes Resources Understorey Competition for Resources Sotobosque Competencia por Recursos |
| url | http://hdl.handle.net/20.500.12123/9679 http://www.ipnc2017.org/the-proceedings-book |
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