The effect of tree density on pasture yield.

Abstract

AbstractAn experiment was conducted to evaluate the effect of tree density on dry matter yield. Three levels of tree density - high, medium and low - were selected in two different land systems at Manuka and Cultowa in Western Division of New South Wales. At Manuka there were significant differences between tree distance between clumps (P<0.05). No significant difference was found between average tree diameters for medium and high tree density areas, but significant differences were obtained between low, compared with high and medium tree densities (P<0.01). Despite differences in diameter, height and number of trees per transect there were no significant differences between dry matter yield estimated under tree storeys. At Cultowa, there were significant differences (P<0.05) between densities and distance and height between clumps. Significant differences were also observed between average tree diameter and pasture dry matter yield of medium density with others. There were no significant differences between dry matter yield estimates under high and low tree densities.