VEGETATION PATTERNS ON AN UNUSUAL GILGAI SOIL IN NEW SOUTH WALES.

The article focuses on a study which examined the vegetation patterns on an unusual Gilgai soil in Riverina, New South Wales. The analytical methods used in the study include, particle size analysis, 15-atmosphere moisture percentage by pressure membrane apparatus and organic carbon by dry combustion. Results revealed that small patches of a richer mesophytic sward occurring among a sparse dryland vegetation lie in gilgai depression. It noted that the difference in the level of depressions and the surrounding ground is only about 2 centimeters (cm). Results of the study suggested that vegetational pattern is due chiefly to differences in soil moisture, that arise through the run-off of rain water from mounds to depressions.