Agroecosystems' performance in the semi-arid pampas of Argentina and their interactions with the environment

Viglizzo, Ernesto F.; Roberto, Z.E.; Brockington, N.R.

doi:10.1016/0167-8809(91)90033-t

Cited by 11 publications

(6 citation statements)

References 4 publications

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“…The soils are naturally drained in excess, with a low moisture-holding capacity. Together with long seasonal drought periods, this feature makes soils highly prone to wind erosion (Viglizzo, Roberto, & Brockington, 1991). The region is predominantly devoted to cow-calf systems with a low participation of cattle raising and cash crops in those soils with better productive potential (less than 30% of the area), where wheat is the main crop grown in 70,000 hectares (Gargano, Adúriz, & Saldungaray, 1990).…”

Section: Study Areamentioning

confidence: 99%

An innovation path in Argentinean cow–calf operations: Insights from participatory farm system modelling

Rosso

Bilotto

Lauric³

et al. 2020

Syst Res Behav Sci

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The information of how the high climatic variability in the south-west Buenos Aires Province (SWBS) region, Argentina, impacts on existing cow-calf operations is needed. This research uses a combination of quantitative (modelling) and qualitative (workshops) methodologies. The objective was to assess, under interannual climate variability, the productive and economic performance and greenhouse gas emissions and the marginal value of additional feed of four cow-calf systems arranged as a potential farm innovation path in the SWBS, Argentina. Modelling results showed that along this technological path where forage crops are decreased, perennial pastures are increased and anticipated weaning is included, productive and economic outcomes increased and the emission intensity decreased. How extra feeds may be used to cope with seasonal and interannual feeding was also identified. Moreover, barriers to adopt the suggested farm innovation path were identified by farmers, consultants and extensionists and strategies and their implication discussed.

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Section: Study Areamentioning

confidence: 99%

An innovation path in Argentinean cow–calf operations: Insights from participatory farm system modelling

Rosso

Bilotto

Lauric³

et al. 2020

Syst Res Behav Sci

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“…Esta disponibilidad forrajera en la pampa semiárida, tanto natural como implantada, se encuentra fuertemente condicionada por la intensidad y estacionalidad de las precipitaciones y por las fluctuaciones térmicas a lo largo del año. En Viglizzo et al (1991) encontramos que las bases para el desarrollo de las actividades agropecuaria en Argentina ha sido la explotación de ecosistemas naturales altamente expuestos a variaciones tanto climáticas como económicas. En particular, los agroecosistemas de la pampa semiárida han sido especialmente vulnerables a los cambios climáticos y económicos.…”

Section: Condiciones Agroecológicas De La Región Bajo Estudiounclassified

Management control of grass-fed beef in the semiarid pampas

Pordomingo¹,

Paturlanne²,

Márquez³

2019

Perspectivas

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Resumen: Uno de los objetivos de este trabajo es proponer un modelo cuantitativo de análisis de gestión destinado a evaluar la viabilidad de emprendimientos dedicados a la producción de ganado bovino localizados en la pampa semiárida. Para ello, se tienen en consideración estándares y parámetros técnicos, productivos, económicos y contables. Cabe resaltar que el modelo que se desarrollará en este trabajo es aplicable a un planteo productivo particular o ciclo operativo o de gestión relativo a la producción de carne bovina de ciclo completo en la pampa semiárida y en condiciones de secano. Esto es, considerado el proceso productivo en su integridad, desde Control de gestión...-Eduardo Pordomingo-Eugenia Paturlanne-Mauricio Márquez-Págs. 125 a 144

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“…Where environmental change does not exceed the tolerances of any of the component species, the functional classification provides an adequate description of the environmental responses of the component species (Smith, 1997). On the theoretical relationship between ecological stability and complexity, Haydon (2000) suggests that community stability requires high levels of interspecific interaction and that devastation may result from loss of allegedly redundant species (see also Viglizzo, Roberto & Brockington, 1991). Historical events at the level of individual plants can also have important effects on several population processes (Ehrlen, 2000).…”

Section: Potentially Relevant Considerations For Karoo Modellingmentioning

confidence: 99%

An overview of Karoo vegetation modelling Published on the occasion of the Centenary of the ARC-Institute for Soil, Climate and Water

Venter

2004

South African Journal of Plant and Soil

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Karoo vegetation processes have been modelled in recent years at various scales and levels of complexity for a variety of purposes ranging from regional drought assessment to range management at farm level. Some models aim to simulate veld growth responses to rainfall while others focus on changes in species composition and related aspects of range dynamics. Model time steps vary from days to years and outputs from simple indices to time series of vegetative states, interpretable in terms of concepts such as stability, extinction and invasion. Future research should include experimental drought treatments, autecological studies, research into species interactions and the effects of selective plant species removal, and the development of weather generators for the Karoo.

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Agroecosystems' performance in the semi-arid pampas of Argentina and their interactions with the environment

Cited by 11 publications

References 4 publications

An innovation path in Argentinean cow–calf operations: Insights from participatory farm system modelling

An innovation path in Argentinean cow–calf operations: Insights from participatory farm system modelling

Management control of grass-fed beef in the semiarid pampas

An overview of Karoo vegetation modelling Published on the occasion of the Centenary of the ARC-Institute for Soil, Climate and Water

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