Method and rigour
Probe their soil sampling and monitoring discipline: depth-stratified cores, bulk density correction, SOC versus POXC or Haney tests, infiltration rings, and baseline design for carbon programmes.
Evidence to listen for
- Follows and can justify an established methodology
- Understands contamination, bias, and chain of custody as they apply to the field
- Knows the limits of their techniques and says so
- Documents procedure so results are reproducible and defensible
Five-point scoring guide
Careless method; unaware of contamination, bias, or procedural integrity.
Knows procedures but applies them inconsistently; gaps in documentation.
Sound standard practice; less certain outside familiar techniques.
Rigorous and well documented; understands the limits of each method.
Names specific protocols and lab methods, explains bulk density correction and stratification, and defends baseline design against measurement noise.