Q-2, r. 35.3.1 - Regulation respecting afforestation and reforestation projects eligible for the issuance of offset credits on privately-owned land

Section 52 Disposition versions

2022-12-29

52. The carbon stock contained in timber forest products is calculated by the calculation tool using equation 6:

Equation 6

C(t+1) = e-k × C(t) +	1 – e-k	× I(t)
	k

Where:

C(t+1) = Carbon stock, in metric tonnes, sequestered in a type of timber forest product;

t = Year after processing;

e = Napier’s constant = 2.71828;

k = Constant annual rate at which the quantity of timber forest products degrades and completes its lifecycle. k = ln(2)/t1/2 where t1/2 is the half-life of a timber product for a specific final use;

The value of parameters k and e-k for predicting the annual change in the quantity of a product category over time is determined in Division II of Schedule F.

The promoter may determine a value for parameters k and e-k and for half-life that are different from the values in Division II of Schedule F. A change in the value of parameters k and e-k and half-life must be entered in the calculation tool and supported by a supporting document. The supporting document must set out the reasons that justify the change and, where applicable, the methods used to define the value of parameters k and e-k and half-life. It must include a notice signed by a member of the Ordre des ingénieurs forestiers du Québec concerning the valid and robust nature of the value of parameters k and e-k and half-life used for the forest products resulting from the processing of the volumes of timber harvested on the lot or part of a lot for the project.

A promoter that is unable to justify the change in the value of parameters k and e-k and half-life in connection with the forest products resulting from the processing of the volumes of timber harvested on the lot or part of a lot for the project must use the most conservative value for the parameters k and e-k and half-life set out in Division II of Schedule F, based on the similarity between the characteristics of the timber forest products resulting from the processing of the volumes of timber harvested on the lot or part of a lot for the project and those of the timber forest products presented in Division II of Schedule F.

C(t) = Quantity, in metric tonnes, of carbon harvested and processed into timber forest products at the start of year t. The product of C(t) and e-k describes the carbon retained in timber products from year t to year t+1;

I(t) = Accumulation of timber products (in mass of carbon) at time t from new harvesting or recycled timber products. The product of the equation corresponds to the carbon contained in I(t) maintained as a timber product at the end of year t after decomposition. The value is determined using the provincial matrix of distribution rates by product in Division I of Schedule F, except where the promoter uses a different matrix as provided for in the second paragraph of section 51.

M.O. 2022-11-17, s. 52.

Not in force

In force: 2022-12-29

52. The carbon stock contained in timber forest products is calculated by the calculation tool using equation 6:

Equation 6

C(t+1) = e-k × C(t) +	1 – e-k	× I(t)
	k

Where:

C(t+1) = Carbon stock, in metric tonnes, sequestered in a type of timber forest product;

t = Year after processing;

e = Napier’s constant = 2.71828;

k = Constant annual rate at which the quantity of timber forest products degrades and completes its lifecycle. k = ln(2)/t1/2 where t1/2 is the half-life of a timber product for a specific final use;

The value of parameters k and e-k for predicting the annual change in the quantity of a product category over time is determined in Division II of Schedule F.

The promoter may determine a value for parameters k and e-k and for half-life that are different from the values in Division II of Schedule F. A change in the value of parameters k and e-k and half-life must be entered in the calculation tool and supported by a supporting document. The supporting document must set out the reasons that justify the change and, where applicable, the methods used to define the value of parameters k and e-k and half-life. It must include a notice signed by a member of the Ordre des ingénieurs forestiers du Québec concerning the valid and robust nature of the value of parameters k and e-k and half-life used for the forest products resulting from the processing of the volumes of timber harvested on the lot or part of a lot for the project.

A promoter that is unable to justify the change in the value of parameters k and e-k and half-life in connection with the forest products resulting from the processing of the volumes of timber harvested on the lot or part of a lot for the project must use the most conservative value for the parameters k and e-k and half-life set out in Division II of Schedule F, based on the similarity between the characteristics of the timber forest products resulting from the processing of the volumes of timber harvested on the lot or part of a lot for the project and those of the timber forest products presented in Division II of Schedule F.

C(t) = Quantity, in metric tonnes, of carbon harvested and processed into timber forest products at the start of year t. The product of C(t) and e-k describes the carbon retained in timber products from year t to year t+1;

I(t) = Accumulation of timber products (in mass of carbon) at time t from new harvesting or recycled timber products. The product of the equation corresponds to the carbon contained in I(t) maintained as a timber product at the end of year t after decomposition. The value is determined using the provincial matrix of distribution rates by product in Division I of Schedule F, except where the promoter uses a different matrix as provided for in the second paragraph of section 51.

M.O. 2022-11-17, s. 52.