Carbon stocks (0-30cm)

The carbon stocks in the top 30cm of soil is calculated using a recorded bulk density (0-30cm) in g/cm³, and % soil organic carbon (0-30cm). Both of these metrics require a 30cm soil core to be sent to a lab for analysis.

What to record


  • Bulk density g/cm³ (0-30cm)
  • Soil organic carbon % (0-30cm)

Equipment


  • N/A – send soil samples for lab analysis

How to do the test

Soil organic carbon % testing

1. Collect a 30cm soil core at your sample location.

2. Repeat the collection of a 30cm depth soil core at up to 20 sample sites to take into account the variability of your soils – you can do this along a transect from your sample site.

3. Send your soil samples for analysis, letting the lab know that the cores were taken at a 30cm depth.

Bulk density testing

1. Collect a soil core up to 30cm at your sample location. N.B. Once the corer is inserted to 30cm, the core you collect may have condensed to be less than 30cm, but do not try and go deeper. The condensed soil is part of the bulk density reading.

2. Send your soil samples for analysis, letting the lab know that the cores were taken at a 30cm depth.

Where to send your soil

We are in the process of updating this based on feedback from our customers on different labs.