| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely suck stored water W in a water storage recessed part 20 of the water storage and water discharge base material A up into vegetation soil G, in a greening structure C on an artificial base D using the water storage and water discharge material A. <P>SOLUTION: As the water storage and water discharge material A, an article in which first support columns 31, the upper surface thereof having a height equal to or greater than the height of the upper surface of a peripheral wall and second support columns 32, the upper surface thereof having a height lower than the height of the upper surface of the peripheral wall are raised in the water storage recessed portion 20 divided by the peripheral walls 10 (11, 12) functioning as water barriers is used. The vegetation soil G disposed on a water-absorbent sheet B enters the stored water W in the water storage recessed portion 20 in the vicinity of the second support columns 32, and the water W is sucked up into the vegetation soil G by capillary action. Since an air layer is formed between the stored water W and the water-absorbent sheet B near the peripheral walls 10, respiration action of hairy roots is not inhibited. <P>COPYRIGHT: (C)2013,JPO&INPIT |
