SciELO - Scientific Electronic Library Online

vol.26 número3Araneofauna (Arachnida: Araneae) de suelo en bosques nativos, exóticos y pajonales del Parque General San Martín, Entre Ríos ArgentinaRelationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




  • No hay articulos citadosCitado por SciELO

Links relacionados


Ecología austral

versión On-line ISSN 1667-782X


BILLONI, Sabrina L; PERI, Pablo L  y  BAHAMONDE, Héctor A. Respuesta de la vegetación al manejo por corte en fajas en un arbustal de Mulguraea tridens en Patagonia sur. Ecol. austral [online]. 2016, vol.26, n.3, pp.293-304. ISSN 1667-782X.

In Santa Cruz province, nearly 2.83 million hectares are occupied by a shrub steppe dominated by Mulguraea tridens (locally called matorral de mata negra), where the main activity is extensive sheep farming. This paper focuses on the effects of management practices such as removal in strips of the above ground shrub layer. The treatments were the control and the cutting of 4 and 8 m wide strips. Meteorological variables (humidity, rainfall, temperature and wind), the effect of treatments on soil variables, shrub regrowth capacity and aspects related to soil seed bank (SSB), potential germination and seedling recruitment in the field were monitored for a term of three years. The vegetation cover and grassland productivity was assessed after one, three and five years of treatments application. Shrub litter from cutting strip treatments varied between 5700 and 8000 kg/ha of dry matter, resulting in a decrease in soil range temperature (2-5 °C) and an increase in soil moisture (2.5-7.5%) during spring-summer months. Short grasses and herb productivity in the control was 11.6 kg/ha of dry matter and under strips management was up to 88.2 kg/ha of dry matter in the fifth year possibly due to better soil water use rather than seedling establishment. No significant effect of treatments on the SSB was observed. Shrubs showed ability to resprout, which provide flexibility in long term management allowing a rotational scheme of strips.

Palabras clave : Soil; Vegetation; Regrowth; Shrub; Seed bank; Germination.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons