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An Integrated Carbon Budget of Weyerhaeuser's
Woodlands and Manufacturing Operations
Weyerhaeuser
ESSA was engaged by Weyerhaeuser to develop and
implement a carbon budget accounting model for its woodlands and
manufacturing operations in North America. In this project, ESSA
developed an analytical carbon accounting framework consisting of
two separate modelling tools.
The first tool assesses changes in carbon pools
and fluxes in forest ecosystems in North America that are managed
or owned by Weyerhaeuser. The model uses corporate forest inventories
and harvest scheduling information to estimate aboveground, belowground
and dead organic matter (soil, coarse woody debris, and litter)
carbon pools and their changes from 1990 into the future.
The second tool assesses the contribution of
Weyerhaeuser's manufacturing operations to the greenhouse gas budget.
Based on information provided by the company, the integrated database
and modelling system determine carbon fluxes in the forest product
manufacturing sector.
Together, the ecosystem and manufacturing sector
tools assess carbon pools and fluxes following the guidelines of
several alternative reporting protocols, thus allowing for an evaluation
of the methodological differences and their quantitative implications
on reported carbon fluxes.
ESSA's work with Weyerhaeuser is an important
part of our extensive experience in the area of carbon budget modelling.
Since 1990, ESSA has been involved in a wide range of projects in
which we have developed carbon budgets for Canadian forests at national
and provincial scales. Additionally, our Forestry Team has released
numerous publications on the
topic.
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