Document ID: chunk:federal_register_of_legislation:F2021L01696:clause:2_14:p1
Version: federal_register_of_legislation:F2021L01696
Segment Type: clause
Provision Reference: sch 2 cl 14 (pt 1/2)
Character Range: 186088–188799

14  Approaches for estimating mean soil organic carbon stock and its sampling variance and degrees of freedom in a CEA
 (1) The mean soil organic carbon stock for a CEA (), in tonnes of soil organic carbon per hectare, and its sampling variance, in (tonnes of soil organic carbon per hectare)2, and degrees of freedom ( must be worked out for the estimation event in accordance with the following subsections.
 (2) If more than one of the following subsections could apply to the CEA for a reporting period, the subsection that results in the lowest value of  for the CEA for the reporting period is taken to apply.
 (3) If sampling has occurred in accordance with the Supplement for an estimation event, then Subdivision 2 of this Division must be applied to any samples collected for the estimation event, and, for the CEA for the reporting period:
 (a) is worked out using equation 78; and
 (b)  is worked out using equation 80; and
 (c)  is worked out using equation 81 or 82, as applicable.
Note: This applies a measurement-based approach to soil organic carbon stock estimation. It applies to samples collected for a measurement-based approach, or for the purposes of calibration and validation of a model. Subsections (3) and (4) will also need to be applied if validated model carbon stock estimates or modelled carbon stock estimates are available, with the resulting estimates being compared under subsection (2).
 (4) If validated model carbon stock estimates are available for an estimation event for a reporting period for the CEA, and model-validation sampling has not occurred in accordance with the Supplement for the estimation event, then Subdivision 3 of this Division must be applied, and, for the CEA for the reporting period:
 (a) is the for the CEA, worked out using equation 86; and
 (b)  is the for the CEA, worked out using equation 87; and
 (c)   is worked out using section 25 of this Schedule.
Note: This applies a model-only approach to soil organic carbon stock estimation. The validation approach and model requirements are set out in the Supplement. Subsections (2) and (3) will also apply if model calibration samples were collected from the CEA, with the resulting estimates being compared under subsection (2).
 (5) If model carbon stock estimates or validated model carbon stock estimates are available for an estimation event for a reporting period for the CEA and model-validation sampling has occurred in accordance with the Supplement for the estimation event, then Subdivision 4 of this Division must be applied to the model-validation samples, and, for the CEA for the reporting period:
 (a) is the Reg for the CEA, worked out using equation 104;
 (b)  is the  for the