| 摘要 |
<p>Planting Tray AbstractA planting tray for use on roofs or the like, includes a tray or reservoir forretaining water, a mesh root guard in the form of a plate which is supported above the reservoir on a ledge and on walls. The mesh root guard is a perforated planar plastic plate. The root guard defines an array of cruciform holes as well as a number of elongate slits. There are one or more rows of parallel slits spaced across the plate. Theslits define a number of opposed teeth. A long continuous strip of geotextile is placed along each row of slits and a loop of geotextile is pushed down into each slit in turn using a suitable tool. The teeth flex and grip the wicks and depend into the reservoir for wicking water from the reservoir. One or more outlets/exits may be defined at a height above the base which is approximately at or slightly lower than the height of theledge above the base. Fig 13</p> |
