BASE STRUCTURE FOR GROWING VEGETATION PLANT

PROBLEM TO BE SOLVED: To provide a base structure for growing vegetation plants having the following properties necessary to a planting basis: a soil filling property, growth potential of plants given by making air space, soil stability imparted by utilizing root tangle brought with growth of plant roots, shape stability in transportation, on-site plantability, a root-proofing property capable of reducing damage to a building construction, and draining performance according to rainfall. SOLUTION: The base structure comprises a water permeable root-proofing sheet having a permeability coefficient of 1×10-4-1×10-1cm/s bonded to one surface of the three-dimensional net-like body where a lot of linear random loops each comprising thermoplastic resin are formed and at least part of the contacts of the linear loops is (are) fused. Also a 2-20 cm unbonded part of the root-proofing sheet is provided at least on one end surface of the base structure. COPYRIGHT: (C)2003,JPO