Document ID: chunk:federal_register_of_legislation:F2018C00126:reg:91:p1
Version: federal_register_of_legislation:F2018C00126
Segment Type: reg
Provision Reference: reg 91 (pt 1/3)
Character Range: 118665–121592

91  Calculation of carbon depletion

Application of section
 (1) This section applies in relation to carbon estimation area (A) if there has been a depletion event in that area.

Definitions
 (2) In this determination:
depletion period means the period relating to that carbon estimation area that:
 (a) commences when the depletion event commences in accordance with section 88 or 89; and
 (b) ends immediately before the replenishment of soil carbon stocks commences in accordance with subsection 90(4).
replenishment period means the period of YR,A years that commences immediately after the depletion period ends, where YR,A is calculated in accordance with this section.

Modifications to operation of determination following depletion event
 (3) Despite section 16, the boundaries of the carbon estimation area must not be changed between the start of the depletion period and the end of the replenishment period.
 (4) Despite section 48, the sequestration period for the carbon estimation area for a particular reporting period does not include any portion of the reporting period that overlaps with:
 (a) for the purposes of provisions that deal with the calculation of sequestration—the depletion period or the replenishment period; and
 (b) for the purposes of provisions that deal with the calculation of changes in emissions—the depletion period.
Note: As a result, further sequestration of carbon in soil is not calculated (and therefore not credited) during the depletion and replenishment periods. In contrast, changes in emissions are calculated and taken into account during the replenishment period.
 (5) If, as a result of this section, there is no sequestration period for the carbon estimation area in a particular reporting period, then for that carbon estimation area and for that reporting period:
 (a) no calculations relating to changes in emissions are required; and
 (b) for Equation EALL1 (section 81),  is taken to be zero.
 (6) Despite subsection 85(1), the project proponent must not change the project management activity or management actions in the carbon estimation area during the replenishment period.

Calculation of depletion and working out when replenishment period ends
 (7) If a depletion event has commenced in a carbon estimation area, and the event is not taken to have stopped under subsection 90(2), then the sequestration amount for the project management activity for the carbon estimation area where the depletion event is underway must be calculated using the following formula:
  Equation D1

             Where:
  =  sequestration amount for the project management activity x for carbon estimation area A; t CO2‑e / y.
  =  sequestration value for the project management activity x; t CO2‑e / ha / y (see Equations SC1A and SC1B, section 49).
  =  area of carbon estimation area A; ha.
  = project management activity that was being undertaken in carbon estimation area A