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Carbon Credits (Carbon Farming Initiative—Reforestation and Afforestation 2.0) Methodology Determination 2015
95Calculating closing carbon stock for a stratum based on PSP assessment
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95 Calculating closing carbon stock for a stratum based on PSP assessment
(1) This section applies if a PSP assessment for a stratum is conducted in accordance with this determination.
(2) The calculation of the closing carbon stock for a stratum for a reporting period in which a PSP assessment has been conducted within the stratum in accordance with this section must:
(a) be carried out in accordance with Equation 6a; and
(b) incorporate a standard error calculation in accordance with Equation 6b.
(3) The closing carbon stock for a stratum for a reporting period in which a PSP assessment has been conducted within the stratum in accordance with this section is to be calculated using the following formula:
| | Equation 6a |
| = | closing carbon stock for the th stratum for the reporting period, in tonnes of CO2‑e (t CO2‑e). |
|---|---|
| = | lower confidence bound for the weighted mean ratio of change in carbon stock for sample plots in the th stratum for the reporting period, calculated in accordance with Equation 8. |
| = | closing carbon stock for the th stratum for the most recent previous reporting period where a full inventory was undertaken in tonnes of CO2‑e (t CO2‑e). |
| = | land area in hectares (ha) occupied by the th stratum at the end of the reporting period. |
| = | land area in hectares (ha) occupied by the th stratum at the end of the most recent previous reporting period where a full inventory was undertaken. |
(4) When calculating the closing carbon stock for a stratum for a reporting period in which a PSP assessment has been conducted in accordance with this section, the standard error must be calculated using the following formula:
| | Equation 6b |
<table cellspacing="0" cellpadding="0" style="width:428.4pt; border-collapse:collapse"><tbody><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.058.png" width="32" height="21" alt="" style="vertical-align:middle"><span> =</span></p></td><td style="width:332.25pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:3pt; margin-bottom:3pt"><span>standard error for closing carbon stock for the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum for the reporting period, in tonnes of CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>‑</span><span>e (t</span><span> </span><span>CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>‑</span><span>e).</span></p></td><td style="vertical-align:top"></td></tr><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.061.png" width="32" height="21" alt="" style="vertical-align:middle"><span> =</span></p></td><td style="width:332.25pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:3pt; margin-bottom:3pt"><span>standard error for closing carbon stock for the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum for the most recent previous reporting period where a full inventory was undertaken in tonnes of CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>‑</span><span>e (t</span><span> </span><span>CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>‑</span><span>e), calculated in accordance with Equation 5b.</span></p></td><td style="vertical-align:top"></td></tr><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.071.png" width="33" height="21" alt="" style="vertical-align:middle"><span> =</span></p></td><td style="width:332.25pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:3pt; margin-bottom:3pt"><span>standard error for weighted mean ratio of change in PSP carbon stock for permanent sample plots in the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum for the reporting period, calculated in accordance with Equation 9b.</span></p></td><td style="vertical-align:top"></td></tr><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.053.png" width="15" height="21" alt="" style="vertical-align:middle"><span>=</span></p></td><td style="width:332.25pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt"><span>closing carbon stock for the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum for the most recent previous reporting period where a full inventory was undertaken in tonnes of CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>‑</span><span>e (t</span><span> </span><span>CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>‑</span><span>e).</span></p></td><td style="vertical-align:top"></td></tr><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.072.png" width="16" height="22" alt="" style="vertical-align:middle"><span> =</span></p></td><td style="width:332.25pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt"><span>lower confidence bound for weighted mean ratio of change in PSP carbon stock for sample plots in the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum for the reporting period, calculated in accordance with Equation 8.</span></p></td><td style="vertical-align:top"></td></tr><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.064.png" width="14" height="21" alt="" style="vertical-align:middle"><span> =</span></p></td><td colspan="2" style="width:334.2pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt"><span>land area in hectares (ha) occupied by the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum at the end of the current reporting period.</span></p></td></tr><tr><td style="width:72.6pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt; text-align:right"><img src="image.069.png" width="14" height="21" alt="" style="vertical-align:middle"><span> =</span></p></td><td colspan="2" style="width:334.2pt; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top; background-color:#ffffff"><p style="margin-top:3pt; margin-bottom:3pt"><span>land area in hectares (ha) occupied by the </span><img src="image.033.png" width="6" height="19" alt="" style="vertical-align:middle"><span>th stratum at the end of the most recent previous reporting period where a full inventory was undertaken.</span></p></td></tr><tr style="height:0pt"><td style="width:83.4pt"></td><td style="width:343.05pt"></td><td style="width:1.95pt"></td></tr></tbody></table> ```