A crude measure of soil health. Indicates the extent to which the soil has been developed by biological action. Typically top soil (or upper portion of the soil profile) will differ in appearance from the subsoil (parent material) and often be darker or more textured. The deeper the top soil, the further roots can grow and the more water and nutrients will be available.
What to record
- Depth of the top soil in cm.
- Photos
Equipment
- Spade or soil sampler
- Ruler/tape measure
How to do the test
