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19th Mar

The Big Scrub

The enormous subtropical rainforests of the north coast of New South Wales grew almost exclusively on the red brown krasnozem soils that were derived from the basaltic lavas that flowed from the Mt Warning volcanic centre and surrounding vents. These soils have deep profiles and the chemistry of the basaltic rocks is reflected in their high nutrient contents and moisture-retaining clay minerals that are an essential ingredient to sustain rainforest trees through dry periods. Read More »