PROBLEM TO BE SOLVED: To provide a step structure which achieve at least one subject selected from 3 points of shortening a construction period and setting at a low cost, contributing to safe passage of people, and demonstrating high greening effect just after setting. SOLUTION: This step structure is composed of a bottom plate to be laid along a contact surface, and at least one multi-plane greening body arranged in a step-like condition on the top of the bottom plate. The multi-plane greening body is composed of a box body with a punched structure, a vegetation foundation held in the box body and plants previously vegetated on a plurality of the surfaces of the box body. COPYRIGHT: (C)2007,JPO&INPIT
