Cloverdale Farm Natural Capital.

Soil Asset Account.

Environmental Account ID: AU00049
Environmental Assets: Soil
Asset Account ID: AU00049S1
Registration date: 14 September 2022
Certification date: 22 January 2025
Certification level: AfN Verified
Purpose: To measure current condition and track change over time to better inform land management options for improving biodiversity and soil health.
Current land use:
Conservation and Grazing
Area:
13.87 ha (76% of Property Account)
Method: AfN-METHOD-S-02

Asset Account snapshot.

Asset summary - baseline.

Asset statement.

  • 14 September 2022 - Registration date

  • 22 January 2025- Certification date

Significant outcomes

Econd® scores for soil condition are moderately high considering the high degree of landscape alteration that is represented by open pastures with introduced species and low diversity.  Soil pH and Electrical Conductivity (EC) are not likely to be substantially changed with the changed land use.  The main impacts from changed land use include lower soil carbon, elevated phosphorus and low groundcover.

 The land use history as a grazing property is reflected in the elevated result for phosphorus.  The high phosphorus score brought the Pcond down as the tested value was well above range.  However, the long-term aspiration of the landholder is to regenerate the land to more closely resemble past native landscapes with a combination of vegetated areas, and open woodland / grassy plains. 

 Where native vegetation is encouraged or planted on previous pasture soils, the rapid growth characteristic of early successional vegetation will quickly draw down on soil P reserves.  Future fertilising with phosphorus is not compatible with this intention and is unlikely to happen.  However, the relatively high P level will take some time to come down under an extensive grazing regime.  This restricts the likelihood of rapid changes in Econd® or Pcond scores and this is reflected in a modest target over the coming five years.

 Planned changes will reduce pressure on groundcover and will assist in sequestration of soil carbon over time.  On this basis, a target of 10% increase in both Econd® and Pcond, if achieved over the next five years, will reflect substantial improvement in soil condition across this property.

Disclousres & limitations

The principal limitation of this account is the level of confidence in the expert assessment of reference condition for soils of the Strzelecki association.  The inherent fertility and depth of these soils resulted in their priority clearing and development from about 1875.  No empirical data is available from earlier than the 1960’s when formal soil surveys commenced.  By that time, almost 100 years of change had occurred.  There is a small number of relatively undisturbed sites in the local area.  Such sites include the Pioneer Reserve in Kongwak.  Future soil sampling in this reserve may provide useful reference data for future refinement of existing Econd® values.

Other Environmental Assets.

Learn more about other Environmental Assets in this Environmental Account.