Silvopastoral systems of the Chaco forests: effects of trees on grass growth
The area devoted to Silvopastoral systems is increasing worldwide due to its complementary production of beef and wood. Understanding the competition between trees and grasses is critical to identify potential trade-offs in plant production. This article had three objectives: (1) to estimate the s...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/2877 https://www.sciencedirect.com/science/article/pii/S014019631830288X?via%3Dihub https://doi.org/10.1016/j.jaridenv.2018.05.008 |
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| author | Baldassini, Pablo Desposito, Cristian Daniel Piñeiro, Gervasio Paruelo, José María |
| author_browse | Baldassini, Pablo Desposito, Cristian Daniel Paruelo, José María Piñeiro, Gervasio |
| author_facet | Baldassini, Pablo Desposito, Cristian Daniel Piñeiro, Gervasio Paruelo, José María |
| author_sort | Baldassini, Pablo |
| collection | INTA Digital |
| description | The area devoted to Silvopastoral systems is increasing worldwide due to its complementary production of beef
and wood. Understanding the competition between trees and grasses is critical to identify potential trade-offs in
plant production. This article had three objectives: (1) to estimate the seasonal variation of gatton panic
(Megathyrsus maximus) productivity and quality in two sites with different annual rainfall, (2) to analyse the
effects of tree shadow (“guayacán”, Caesalpinia paraguariensis) on gatton panic above ground primary production
(ANPP), and 3) to determine the relative importance of changes in radiation use efficiency (RUE) and
incoming radiation (PARi), in defining grass ANPP under trees or exposed to full sunlight. Tree presence reduced
gatton panic ANPP by nearly 50%, mainly throughout a reduction in APAR. APAR decrease was not compensated
by the RUE increase observed in the wet site and it was exacerbated by a decrease in RUE in the dry site.
The decrease in APAR under trees was better explained rather by a decrease in PARi than by the fraction of
intercepted PAR. A small increase in shoot grass digestibility was observed under the tree canopy. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2877 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA28772018-07-25T17:15:56Z Silvopastoral systems of the Chaco forests: effects of trees on grass growth Baldassini, Pablo Desposito, Cristian Daniel Piñeiro, Gervasio Paruelo, José María Sistemas Silvopascícolas Bosques Producción Primaria Radiación Factores Climáticos Cubierta de Copas Canopy Climatic Factors Radiation Primary Production Forests Silvopastoral Systems Megathyrsus Maximus Caesalpinia Paraguariensis Chaco Semiárido The area devoted to Silvopastoral systems is increasing worldwide due to its complementary production of beef and wood. Understanding the competition between trees and grasses is critical to identify potential trade-offs in plant production. This article had three objectives: (1) to estimate the seasonal variation of gatton panic (Megathyrsus maximus) productivity and quality in two sites with different annual rainfall, (2) to analyse the effects of tree shadow (“guayacán”, Caesalpinia paraguariensis) on gatton panic above ground primary production (ANPP), and 3) to determine the relative importance of changes in radiation use efficiency (RUE) and incoming radiation (PARi), in defining grass ANPP under trees or exposed to full sunlight. Tree presence reduced gatton panic ANPP by nearly 50%, mainly throughout a reduction in APAR. APAR decrease was not compensated by the RUE increase observed in the wet site and it was exacerbated by a decrease in RUE in the dry site. The decrease in APAR under trees was better explained rather by a decrease in PARi than by the fraction of intercepted PAR. A small increase in shoot grass digestibility was observed under the tree canopy. EEA Salta Fil: Baldassini, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Desposito, Cristian Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Piñeiro, Gervasio. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Ecología. Laboratorio de Análisis Regional y Teledetección; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Paruelo, José María. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina 2018-07-25T17:05:31Z 2018-07-25T17:05:31Z 2018 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2877 https://www.sciencedirect.com/science/article/pii/S014019631830288X?via%3Dihub 0140-1963 https://doi.org/10.1016/j.jaridenv.2018.05.008 eng info:eu-repo/semantics/restrictedAccess application/pdf Chaco (province) Elsevier Journal of arid environments 156 : 87–95. (2018) |
| spellingShingle | Sistemas Silvopascícolas Bosques Producción Primaria Radiación Factores Climáticos Cubierta de Copas Canopy Climatic Factors Radiation Primary Production Forests Silvopastoral Systems Megathyrsus Maximus Caesalpinia Paraguariensis Chaco Semiárido Baldassini, Pablo Desposito, Cristian Daniel Piñeiro, Gervasio Paruelo, José María Silvopastoral systems of the Chaco forests: effects of trees on grass growth |
| title | Silvopastoral systems of the Chaco forests: effects of trees on grass growth |
| title_full | Silvopastoral systems of the Chaco forests: effects of trees on grass growth |
| title_fullStr | Silvopastoral systems of the Chaco forests: effects of trees on grass growth |
| title_full_unstemmed | Silvopastoral systems of the Chaco forests: effects of trees on grass growth |
| title_short | Silvopastoral systems of the Chaco forests: effects of trees on grass growth |
| title_sort | silvopastoral systems of the chaco forests effects of trees on grass growth |
| topic | Sistemas Silvopascícolas Bosques Producción Primaria Radiación Factores Climáticos Cubierta de Copas Canopy Climatic Factors Radiation Primary Production Forests Silvopastoral Systems Megathyrsus Maximus Caesalpinia Paraguariensis Chaco Semiárido |
| url | http://hdl.handle.net/20.500.12123/2877 https://www.sciencedirect.com/science/article/pii/S014019631830288X?via%3Dihub https://doi.org/10.1016/j.jaridenv.2018.05.008 |
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