Soil health encompasses the three aspects of soil fertility; physical, chemical and biological. The decline in soil fertility in northern Australia is a serious land degradation issue. A major factor causing a decline in soil fertility is the decreasing soil organic carbon (SOC) levels in many areas.
Soil health: Soil Carbon
Improving Soil Health
Texture is an estimate of the amounts of sand, silt and clay in a soil. Find out why you need to know the texture of your soils and how to determine the texture of your soil.
Soil Types in the Namoi
A description of a selection of soil types in the Namoi catchment. Identify horizons, geology, qualities and limitions of these soils.
Australia has a great diversity of soils. Most are ancient, strongly weathered and infertile. Others are younger and more fertile. This variety, combined with the natural limitations of many soils, has made it difficult to develop sustainable land management practices.