Document ID: chunk:federal_register_of_legislation:F2021L01696:clause:1_12:p1
Version: federal_register_of_legislation:F2021L01696
Segment Type: clause
Provision Reference: sch 1 cl 12 (pt 1/2)
Character Range: 138139–140678

12  Determining Equivalent Soil Mass (ESM) from the soil masses derived during the baseline sampling round
 (1) The equivalent soil mass (the ESM), in tonnes of oven dry whole soil per hectare, for a CEA must be worked out in accordance with this section and the Supplement based on the samples collected from the CEA during the baseline sampling round.
Note:  The Supplement may include provision for sub-layer analysis (analysing carbon stocks at more discrete intervals than 0-30 cm, 0-x cm) which allows for the mass of each sample to be adjusted by removing sub-layers from carbon stock estimates to keep soil masses between sample rounds comparable. Restrictions on removal of sub-layers will be subject to requirements such as to continue to account for the soil mass to the depth of any disturbance as per paragraph 9(2)(a) of this Schedule and the Supplement.
 (2)  Rank from smallest to largest for the CEA the mass of oven dry whole soil in the 0-30 cm or 0-x cm layer for the sample () collected during the baseline sampling round, worked out in accordance with any requirements in the Supplement, in tonnes of oven dry whole soil per hectare.
 (3) With the ranked samples from subsection (2), assign a sequential rank k from 1 for the smallest through to N for the largest, where N is the total number of samples collected for a CEA in the baseline sampling round.
 (4) A percentile P must be worked out for each sample k using the following equation:
  equation 50

  where:
 is the value of the sequential rank assigned to a sample from the baseline sampling round under subsection (3).
 is the total number of samples collected from the CEA in the baseline sampling round.
 (5) If one of the percentiles worked out by equation 50 for a sample is PSupp —the ESM for the CEA is the mass of the layer given by subsection (3) for the relevant rank of k, , where PSupp is the percentile value to which ESM is set, specified in the Supplement.
 (6) If subsection (5) does not apply—the ESM for a CEA is worked out using the following equation:
  equation 51

  where:
  MLB is the mass of oven dry whole soil associated with the sample having the value of P worked out using equation 50 closest to and lower than PSupp, in tonnes of oven dry whole soil per hectare.
  MUB is the mass of oven dry whole soil associated with the sample, having the value of P worked out using equation 50 closest to and higher than PSupp, in tonnes of oven dry whole soil per hectare.
  PSupp is the percentile P determined in the Supplement.
  PLB