Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina)
Crop production is traversing expansion and intensification processes all over the planet and in consequence the large scale cattle production is being displaced to marginal lands with lower stocking capacity. The objective of this work was to assess the seasonality of vegetation in La Pampa provinc...
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Facultad de Ciencias Agrarias-UNCuyo
2019
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2345 |
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I11-R107article-23452019-12-18T16:15:10Z Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) Di Bella, Carlos Marcelo Beget, María Eugenia Campos, Alfredo Nicolás Viglizzo, Ernesto Jobbágy, Esteban García, Alfredo Gabriel Sycz, Alejandra Cotroneo, Santiago MODIS EVI índices espectrales proporción de arbustos MODIS EVI vegetation indices shrub proportion Crop production is traversing expansion and intensification processes all over the planet and in consequence the large scale cattle production is being displaced to marginal lands with lower stocking capacity. The objective of this work was to assess the seasonality of vegetation in La Pampa province located in a semiarid region in Argentina and to explore if the variations in seasonality are related to the stocking rate. The hypothesis is the changes in stocking rate of rangelands and its grazing pressure alter the proportion of different vegetation functional groups and so the vegetation seasonality. It is predicted that overgrazing of seasonal grasses will alter the proportion of woody species having consequences over spectral indices. It was analyzed satellite data, particularly the MODIS Enhanced Vegetation Index (EVI) and related it to stocking rate records from SENASA. This work evidences the relationship between the stocking rate and the spectral index EVI, indicator of the primary productivity of vegetation, at departmental scale in the natural areas of Monte and Espinal of La Pampa. Results indicate that in western region (Monte) there was an increment in the stocking rate at department level and a decrease in vegetation seasonality. It is posed that the higher grazing pressure led to the overgrazing of the most palatable herbaceous species, increasing the shrub proportion in landscape. Crop production is traversing expansion and intensification processes all over the planet and in consequence the large scale cattle production is being displaced to marginal lands with lower stocking capacity. The objective of this work was to assess the seasonality of vegetation in La Pampa province located in a semiarid region in Argentina and to explore if the variations in seasonality are related to the stocking rate. The hypothesis is the changes in stocking rate of rangelands and its grazing pressure alter the proportion of different vegetation functional groups and so the vegetation seasonality. It is predicted that overgrazing of seasonal grasses will alter the proportion of woody species having consequences over spectral indices. It was analyzed satellite data, particularly the MODIS Enhanced Vegetation Index (EVI) and related it to stocking rate records from SENASA. This work evidences the relationship between the stocking rate and the spectral index EVI, indicator of the primary productivity of vegetation, at departmental scale in the natural areas of Monte and Espinal of La Pampa. Results indicate that in western region (Monte) there was an increment in the stocking rate at department level and a decrease in vegetation seasonality. It is posed that the higher grazing pressure led to the overgrazing of the most palatable herbaceous species, increasing the shrub proportion in landscape. Facultad de Ciencias Agrarias-UNCuyo 2019-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2345 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 51 No. 1 (2019): January-June; 79-92 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 51 Núm. 1 (2019): Enero-Junio; 79-92 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2345/1715 https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2345/1716 |
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Universidad Nacional de Cuyo |
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Revistas en línea |
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Revista de la Facultad de Ciencias Agrarias |
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Revista de la Facultad de Ciencias Agrarias |
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| language |
eng |
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Online |
| author |
Di Bella, Carlos Marcelo Beget, María Eugenia Campos, Alfredo Nicolás Viglizzo, Ernesto Jobbágy, Esteban García, Alfredo Gabriel Sycz, Alejandra Cotroneo, Santiago |
| spellingShingle |
Di Bella, Carlos Marcelo Beget, María Eugenia Campos, Alfredo Nicolás Viglizzo, Ernesto Jobbágy, Esteban García, Alfredo Gabriel Sycz, Alejandra Cotroneo, Santiago Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) MODIS EVI índices espectrales proporción de arbustos MODIS EVI vegetation indices shrub proportion |
| author_facet |
Di Bella, Carlos Marcelo Beget, María Eugenia Campos, Alfredo Nicolás Viglizzo, Ernesto Jobbágy, Esteban García, Alfredo Gabriel Sycz, Alejandra Cotroneo, Santiago |
| author_sort |
Di Bella, Carlos Marcelo |
| title |
Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) |
| title_short |
Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) |
| title_full |
Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) |
| title_fullStr |
Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) |
| title_full_unstemmed |
Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) |
| title_sort |
changes in vegetation seasonality and livestock stocking rate in la pampa province (argentina) |
| description |
Crop production is traversing expansion and intensification processes all over the planet and in consequence the large scale cattle production is being displaced to marginal lands with lower stocking capacity. The objective of this work was to assess the seasonality of vegetation in La Pampa province located in a semiarid region in Argentina and to explore if the variations in seasonality are related to the stocking rate. The hypothesis is the changes in stocking rate of rangelands and its grazing pressure alter the proportion of different vegetation functional groups and so the vegetation seasonality. It is predicted that overgrazing of seasonal grasses will alter the proportion of woody species having consequences over spectral indices. It was analyzed satellite data, particularly the MODIS Enhanced Vegetation Index (EVI) and related it to stocking rate records from SENASA. This work evidences the relationship between the stocking rate and the spectral index EVI, indicator of the primary productivity of vegetation, at departmental scale in the natural areas of Monte and Espinal of La Pampa. Results indicate that in western region (Monte) there was an increment in the stocking rate at department level and a decrease in vegetation seasonality. It is posed that the higher grazing pressure led to the overgrazing of the most palatable herbaceous species, increasing the shrub proportion in landscape. |
| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2019 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2345 |
| topic |
MODIS EVI índices espectrales proporción de arbustos MODIS EVI vegetation indices shrub proportion |
| topic_facet |
MODIS EVI índices espectrales proporción de arbustos MODIS EVI vegetation indices shrub proportion |
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