Soil profile development in some alluvial deposits of eastern New South Wales

摘要: Soil profile data from river terrace sequences on the New South Wales coast and southern highlands have been summarized. In all profiles a progressive increase in soil development low alluvial benches to flood plains terraces. The general similarity of soils among these other eastern is basis descriptive generalization terms five stages: stratic stage benches; cumulic plains; low-contrast solum terraces; high-contrast high extended subsolum highest Sufficient lack correlation occurs between suggest that stages are groupings within continuous spectrum variation, whole representing one pedogenetic pathway. Pedogenesis landscapes considered progress through development, first biotic which reaches maximum 1000 years, then degraded with onset mineral weathering B horizon form 30 000 years. rates change components sufficiently slow only broad limits confidence can be applied stratigraphic correlations based field morphology alone.