Document ID: chunk:federal_register_of_legislation:F2015L00320:reg:54
Version: federal_register_of_legislation:F2015L00320
Segment Type: reg
Provision Reference: reg 54
Character Range: 39022–40698

54  Calculating biomass proportion
 (1) This section applies if the project proponent elects to estimate the proportion of biomass killed in accordance with sections 52 to 55 (see subparagraph 50(5)(b)(i)).
 (2) Every living tree and every dead tree in a sample plot must have its stem diameter measured at 1.3m aboveground (DBH) and status (dead or living) recorded:
 (a) no earlier than 6 months after the detection of the natural disturbance; and
 (b) not before it is safe to enter the area affected by the natural disturbance.
 (3) Subsection (1) does not apply in relation to trees belonging to a class that was not included in biomass surveys conducted under the Verified Carbon Standard.
Note For example, if trees in a sample plot with a diameter of less than 20cm were excluded from a biomass survey of the same sample plot conducted under the Verified Carbon Standard, those trees do not have to be counted.
 (4) The basal area of each measured tree must be calculated using the following equation:
  Equation 20A

  Where:
  the basal area of tree  in sample plot in disturbed area  in stratum in reporting period .
  the stem diameter of tree  in sample plot in disturbed area  in stratum in reporting period .

 (5) The proportion of biomass killed within each sample plot must be calculated using the following equation:
  Equation 20B

  Where:
  the proportion of biomass killed in sample plotin disturbed area  in stratum in reporting period .
  the basal area of tree  in sample plot in disturbed area  in stratum in reporting period .

 (6) In this section, class means a group of trees sharing a common characteristic such as species or stem diameter.