Soil Erosion

Climate change is expected to impact soils through changes in both soil erosion and rainfall erosivity. Change in erosion can have significant implications for natural assets, agricultural lands and water quality.

The Office of Environment and Heritage has used the projections from NARCliM to provide updated information on the projected impacts of climate change on soil erosion and rainfall erosivity in the near future (2030) and far future (2070).

Research results

Percent change in annual rainfall erosivity for near (left) and far (right) futures

  • NSW is projected to undergo an increase in erosion on both the near and far futures.
  • The areas most affected are those with already high erosion risk, namely the Great Dividing Range, Central Coast, North Coast and Hunter regions.
  • There are areas with significant projected erosion impacts e.g. the Hunter region will lose up to 195 tonnes of soil per hectare per year, highlighting the importance of groundcover maintenance and soil management in this region.


Download information

Biodiversity Technical Report
Biodiversity Technical Report
Biodiversity Technical Report
Rainfall Erosivity Maps

ASHX - 9.6 mb

Biodiversity Technical Report
Rainfall Erosivity Data

ASHX - 55.4 mb

What is soil erosion and rainfall erosivity?

Soil erosion is the actual loss of soil and can have significant impacts on the availability of nutrients and organic matter in soil.

Rainfall erosivity is a measure of the ability of rainfall to cause erosion and is largely a function of the amount of rainfall and the intensity of rainfall.