Resource Extraction
Seedling- greenhouse operations
Energy
gasoline,
diesel
Planting
A1
Forest Management- thinnings, fertilizing
Ancillary
Materials
Lubricants,
fertilizers
(N, P, K)
Logging- felling, transport to landing
Product Manufacturing
Roundwood- logs on trucks
A2
Transportation
Emissions
to air, water,
land
Resources
Finger-jointed
Lumbermanufacturing facility
Laminated Veneer
Lumbermanufacturing facility
A2
Electricity
Routing and shaping of
web and flanges
A3
Resin
System
Assembly of I-joists
Sawing/Curing
Energy:
gasoline,
diesel,
wood fuel,
natural gas,
LPG
System Boundary
Composite I-joist
Packaging
Oriented Strand
Boardmanufacturing facility