Carbon Credits (Carbon Farming Initiative—Reforestation and Afforestation 2.0) Methodology Determination 2015
98Calculating the mean ratio of change in PSP carbon stock
Start here
Get a plain-English read of 98
Turn the raw legal text into a practical explanation grounded in Carbon Credits (Carbon Farming Initiative—Reforestation and Afforestation 2.0) Methodology Determination 2015.
98 Calculating the mean ratio of change in PSP carbon stock
(1) The calculation of the weighted mean for the values of PSP carbon stock change ratios must:
(a) be carried out in accordance with Equation 9a; and
(b) incorporate a standard error calculation in accordance with Equation 9b.
(2) For this section, if, for a particular sample plot Image unavailable in extracted text, Image unavailable in extracted text is zero, treat the plot as if:
(a) it was not a PSP in the Image unavailable in extracted textth stratum; and
(b) it was not assessed during the reporting period.
(3) The weighted average for the values of PSP carbon stock change ratios is to be calculated using the following formula:
| | Equation 9a |
| = | weighted mean ratio of change in PSP carbon stock for sample plots occurring in the th stratum for the reporting period. |
|---|---|
| = | ratio of change in PSP carbon stock, for the th sample plot in the th stratum for the reporting period, calculated in accordance with Equation 10. |
| = | carbon stock in carbon pools assessed for the th sample plot in the th stratum for the most recent previous reporting period where a full inventory was undertaken in tonnes per hectare of CO2‑e (t.ha‑1 CO2‑e), calculated in accordance with Equation 12. |
| = | number of sample plots assessed in the th stratum during the reporting period. |
(4) When calculating the mean ratio of change in PSP carbon stock, the standard error is to be calculated using the following formula:
| | Equation 9b |
| = | standard error for weighted mean ratio of change in PSP carbon stock for permanent sample plots in the th stratum for the reporting period. |
|---|---|
| = | standard deviation of the ratios of change in PSP carbon stock for permanent sample plots in the th stratum for the reporting period, , calculated in accordance with Equation 10. |
| = | number of sample plots assessed in the th stratum during the reporting period. |