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Official Journal of the Japan Wood Research Society

Table 3 Assessment result for annual life cycle GHG emissions for the woodchip-paved walkway (+: emission, −: reduction)

From: Life cycle greenhouse gas emissions of woodchip-paved walkways using tsunami salt-damaged wood: examination in Otsuchi, Iwate Prefecture

Life cycle process/stage

GHG emissions (kg-CO2-eq/year)

Per 110 m2

Per 1 m2

Raw material procurement

Salt-damaged wood harvesting

0.88

0.01

Salt-damaged wood transportation

0.02

2.E-04

Raw material production for adhesive

254.49

2.31

Production

Chip production

3.08

0.03

Adhesive production

17.55

0.16

Transportation

Chip transportation

1.76

2.E-02

Construction

Roadbed excavation and ground preparation

5.88

0.05

Chip and adhesive mixing

1.22

0.01

Paving

3.77

0.03

Disposal

Energy use of disposed chips

−266.35

−2.42

Total

Raw material procurement to construction

288.64

2.62

Raw material procurement to disposal

22.29

0.20