Document ID: chunk:federal_register_of_legislation:F2021L01696:clause:1_9:p2
Version: federal_register_of_legislation:F2021L01696
Segment Type: clause
Provision Reference: sch 1 cl 9 (pt 2/3)
Character Range: 134624–137215

(0-x cm layer). Crediting can be based on only the 0-30 cm layer if permitted by this section. This is intended to allow results of the 30-x cm layer to only contribute to crediting once changes are observed in the layer. Reporting of 0-30 cm results is required, even if it does not impact crediting, to inform the national inventory.

        (3)  For the purposes of subparagraph (2)(b)(iii), the change in soil organic carbon stock in the 30-x cm layer of a sample from a CEA for a reporting period is taken to be negative if the change in that layer  calculated in accordance with the following equation has a value less than 0:
  equation 49

       where:

        is the change in soil organic carbon stock for the CEA for the reporting period between the baseline sampling round t0 in the CEA and the last subsequent sampling round tx in the reporting period, for the 0-x cm layer, worked out using equation 64.

        is the standard error of the mean difference (the ) between total soil organic carbon stock for the CEA between the baseline sampling round t0 in the CEA and the last subsequent sampling round tx in the CEA in the reporting period, in tonnes of soil organic carbon, for the 0-x cm layer, worked out using equation 65.

        is the value of the quantile function (inverse distribution function) for the t-distribution with the value for alpha () set out in the Supplement and the value for the degrees of freedom,  for the 0-x cm layer worked out using equation 66.
Note: The value of  should be negative.

        is the change in soil organic carbon stock for the CEA for the reporting period between the baseline sampling round t0 in the CEA and the subsequent sampling round tx in the reporting period, for the 0-30 cm layer, worked out using equation 64.

        is the standard error of the mean difference (the ) between total soil organic carbon stock for the CEA between the baseline sampling round t0 in the CEA and the last subsequent sampling round tx in the CEA in the reporting period, in tonnes of soil organic carbon, for the 0-30 cm layer, worked out using equation 65.
 is the value of the quantile function (inverse distribution function) for the t-distribution with the value for alpha () set out in the Supplement  and the value for the degrees of freedom,  for the 0-30 cm layer worked out using equation 66.
Note: The value of should be negative.

        (4) The change in soil organic carbon stock with a specified probability of exceedance for a reporting period for a CEA which has not undergone a subsequent sampling round in the