1 Scope
This document provides a methodology for calculating the carbon balance of (a) forest
management unit(s) (FMU). This quantification methodology is intended to demonstrate
to what extent carbon pools in the FMU represent a net greenhouse gas sink or a net
greenhouse gas source. This document provides information that can be used on organizational
or aggregated product levels.
This calculation methodology considers:
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— the geographical scale of the FMU;
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— forest management practices;
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—
land ownership arrangements;
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— time periods;
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— the use of forest inventory data and other data sources for determining the forest carbon balance; and
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— allocation of forest carbon balance to wood that has been sourced in FMU(s).
Greenhouse gas emissions from fossil fuels or industrial processes related to forestry
operations (e.g. production and distribution of fertilizers, fuels for machinery)
are not included in this document.
NOTE 1 Greenhouse gas emissions related to forestry operations are covered in ISO 13391‑1.
The quantity of wood entering the harvested wood products carbon pool is not included
in this document.
NOTE 2 Material entering the harvested wood products carbon pool is calculated in ISO 13391‑1.
This document is intended to be used by organizations seeking to understand, commit
to or contribute to climate change mitigation. These organizations can be either private
or public, regardless of type or size, and located in any jurisdiction or any position
within a specific value chain.