info:ar-repo/semantics/artículo
Rangeland grazing management in Argentine Patagonia
Fecha
2020-08-31Autor
Bjerring, Anna Trier
Peri, Pablo Luis
Christiansen, Rodolfo
Vargas-Bello-Pérez, Einar
Hansen, Hanne Helene
Resumen
Stocking rate adjustment in grazing management is recommended as a management tool to sustain productivity and improve soil health of permanent grassland ecosystems. The aim of this project was to assess the effect of stocking rates under continuous grazing or simple levels of rotational grazing systems on the local environment, when using a moderate or high grazing intensity in the Argentine Patagonia. The parameters investigated were: 1) soil water infiltration and water retention
capacity, 2) soil organic matter, N, erosion, and respiration and 3) Plant composition profiles, aboveground net primary production (ANPP), biomass above- and below- ground, physical plant characteristics, and species diversity. In the humid Magellanic grass steppe static rotational grazing was found to increase soil water infiltration rates, N, proportions of forbs and shrubs, root/aerial plant ratio, number of plant species, and proportion of dead plant. Continuous grazing had a greater ANPP,
proportion of bare soil, and grasses and graminoids. Under silvopastoral Andean vegetation conditions, rotational grazing
resulted in increased root biomass, root/aerial plant ratio, and proportion of forbs compared to continuous grazing, which was found to increase soil organic matter, N, plant length, root depth, aerial plant biomass, soil respiration, proportion of bare soil and dead plants compared to rotational grazing. Intensive grazing negatively influenced soil water, soil and vegetation
parameters. The results indicated that adjustment of stocking rate or rotational grazing has a potential to store more biomass than continuous grazing.
Materias
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Nitrogen soil budgets in contrasting dairy grazing systems of southern chile, a short-term study
NUNEZ-RAMOS, PEDRO; ALFARO-YORQUI, CARLOS; DEMANET-FILIPPI, ROLANDO; MORA-GIL, MARIA -
Nitrogen soil budgets in contrasting dairy grazing systems of southern chile, a short-term study
Nunez, R. P.; Demanet, R.; Alfaro, M.; Mora, M. L. -
Evaluación de la presión de pastoreo en tanner (urochloa arrecta) y la suplementación estratégica en mautas mestizas en bosque húmedo tropical y suelos ácidos
Perozo Bravo, Ali; González, Baldomero; Ortega Alcalá, Jorge; Fuenmayor, Abdénago; Pirela, Manuel F.