Table 2 Wood availability per unit area for large-scale storage facility depending on the method of wood sourcing, based on US forestry data (see Appendix)
Method | Potential wood availability (tCO2 ha−1 y−1) | Size of wood collection area for large storage facility | Assumptions in the estimated potential |
|---|---|---|---|
Urban-suburban wood residuals | 0.4 | 2500 km2 | Utilize 30–50% of unexploited urban wood residuals |
Rural (Managed forest) | 4 | 2500 km2 | Utilize most of wood residuals and forestry residue, or sustainably managed forest |
Combination | 0.4–4 | 2500–25,000 km2 | Collection over a larger area or high rate |