Material for zonal thermal insulation of cultivated areas

摘要

For zonal thermal insulation of cultivated soil and esp. mulch mattings, /- 2 fibre layers are used. One layer is a strengthening base layer (2) bonded to a heat-absorbent covering layer (1). The base layer (2) is of natural fibres and esp. flax. The covering layer (1) is of synthetic fibres, and esp. cellulose or viscose fibres. The fibre layers are bio-degradable.