Carbon Modelling Guidance for Timber Supply Review

This technical guide provides detailed information on the methodology, assumptions, and parameters used in forest carbon modelling for Timber Supply Review (TSR). It aims to improve consistency and transparency in the modelling process, which supports Allowable Annual Cut (AAC) determinations made by the Chief Forester. The document outlines the framework and model utilized for carbon analysis, specifically the Carbon Budget Model of the Canadian Forest Sector (CBM-CFS3). It details the main steps involved in the analysis, including preparing input data, data importation, running the model, and reporting outputs and indicators. While forest carbon modelling is not a legislated requirement, it has gained importance due to its role in climate change mitigation and forest carbon offset projects. The guidance is intended for use by analysts within the Ministry of Forests and may also benefit a wider audience engaged in forest carbon modelling activities.