Fig. 7

A basic Wood Vault unit partially aboveground, partially underground (Wood Vault Version 1.1: Burial Mound Tumulus). A prototype unit occupies 1 hectare of land (100 by 100 m, or size of two soccer/football fields), 5 m deep, 20 m tall. The unit is divided into cells. Each cell is sealed as soon as it is filled. After closing of the top at final enclosure, the original topsoil is put back, grass and shallow rooted trees can be allowed to grow, then used as park, grazing land, cropland, solar Farm, or combination of these. Reddish brown represents clay or clay-like low permeability soil or liner to ensure anaerobic condition, while dark brown represents backfilled topsoil