Cambios Estructurales Y Tecnológicos De La Ganadería Del Centro Sur De Corrientes, Argentina, en El Período 2005-2015

Calvi, Mariana; Urcola, Hernán Alejandro; Cabrini, Silvina María; Chavez, M.D.

doi:10.4067/s0719-38902019005000307

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Forage growth is strongly seasonal, with the maximum standing green biomass during summer (December-February) and minimum during winter, between July-September [36]. Cattle graze freely at medium to relatively low stocking rates (~0.5 animal unit ha −1 ) all year round [37].…”

Section: Study Areamentioning

confidence: 99%

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Effects of High Impact Grazing on Species Diversity and Plant Functional Groups in Grasslands of Northern Argentina

et al. 2018

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High impact grazing (HIG) was proposed as a management option to reduce standing dead biomass in Northern Argentinean (Chaco) rangelands. However, the effects of HIG on grassland diversity and shifts in plant functional groups are largely unknown but essential to assess the sustainability of the impact. During a two-year grazing experiment, HIG was applied every month to analyze the seasonal effects on plant species composition and plant functional groups. The results indicate that irrespective of the season in which HIG was applied, the diversity parameters were not negatively affected. Species richness, the Shannon–Wiener diversity index and the Shannon’s equitability index did not differ from the control site within a 12-month period after HIG. While plant functional groups of dicotyledonous and annual species could not benefit from the HIG disturbance, C3-, C4-monocotyledonous and perennials increased their absolute and relative green cover. Our results suggest that HIG, if not applied in shorter frequencies than a year, neither alters diversity nor shifts the plant species composition of the grassland plant community, but instead it promotes previously established rather competitive species. HIG could therefore contribute as an alternative management practice to the sustainable land use intensification of the “Gran Chaco” grassland ecosystem and even counteract the encroachment of “low value” species.

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Section: Study Areamentioning

confidence: 99%

“…The experiment started in July 2012 and ran until June 2013; all 12 subplots of each replicate with HIG were treated in a different month. After the impact the subplot was continuously grazed at 0.5 animal units per ha −1 year −1 , to resemble the average stocking rate of 0.5 animal unit ha −1 in Corrientes Province [37].…”

Section: Experimental Layoutmentioning

confidence: 99%