| 摘要 |
PURPOSE: To provide a method for simply and freely planting trees on the roof of a building an on the green belt of an expressway. CONSTITUTION: In planting trees on the roof of a building or on the sides of a road, a water screening tank having a short side wall is set on a face to be planted with trees. The water screening tank is spread with porous culture soil in 30cm or thinner thickness and a water supply pipe 7 and a drain pipe 8 are laid in the porous culture soil layer to constitute a planting bed. A granular porous material is put in a flat basket having a water-permeable bottom and plants are planted in the baskets to give a planting basket set. A necessary number of the planting basket sets are placed on the planting bed l. A water tank 15 installed outside the water screening tank is connected to the water screening tank so as to send water. The water level in the water screening tank is controlled in a fixed range to provide the objective method for planting trees on the roof of a building, etc. |
