SciELO - Scientific Electronic Library Online

 
vol.62 número4COMPARACIÓN DE LA PRODUCCIÓN LÁCTEA DE TRES GRUPOS RACIALES DE OVEJAS EN LA ZONA CENTRO-SUR DE CHILEEFECTO DE TRES SISTEMAS DE LABRANZA SOBRE EL NIVEL DE HUMEDAD EN EL PERFIL DEL SUELO índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Agricultura Técnica

versión impresa ISSN 0365-2807

Resumen

A. BONILLA, Carlos; BONOMELLI, Claudia  y  URRUTIA, Gonzalo. Spatial and temporal distribution of precipitation and soil water content at three forest sites of the VIII Region of Chile. Agric. Téc. [online]. 2002, vol.62, n.4, pp.541-554. ISSN 0365-2807.  http://dx.doi.org/10.4067/S0365-28072002000400006.

In Chile there are around two million hectares with forest plantations, the VIII Region being noteworthy, for its favorable climatic conditions. Considering the importance that the hydric regime has on these species, the objective of this study was to characterize the precipitation and soil water content in three sites representative of the Coastal Dry Land, Central Valley and Andean Foothills of the region. The selected sites are located between 37°00 and 37°45’ S. lat. and 72°00 and 73°10’ W. long.. The temperature, rainfall and soil water content were recorded from September 1993 to August 1996. The results indicate that the monthly rainfall in the Andean Foothill site was not statistically different from that registered in the Central Valley and the Coastal Dry Land. The same situation was observed with the mean temperatures. Nevertheless, although temperatures and rainfall were the same in all sites, significant differences were found when comparing the soil water contents. The soil water content in the Andean Foothill site was on average 420 and 440% greater than those observed in the Central Valley and the Coastal Dry Land, respectively. The higher organic matter level in the Andean Foothill site would be the main cause of this phenomenon. This higher water availability was translated into higher rates of growth in the forestry plantation. The results obtained demonstrate the utility of characterizing forest sites through available soil water instead of rainfall.

Palabras clave : Eucalyptus spp.; forest hydrology; hydric balance; soil water availability.

        · resumen en Español     · texto en Español

 

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