> Perhaps they are drip irrigating the entire floor of the artificial forest to minimize evaporative losses? More or less (saw it on german TV a few weeks ago)

> Perhaps they are drip irrigating the entire floor of the artificial forest to minimize evaporative losses? More or less (saw it on german TV a few weeks ago) - here ( https://www.planet-wissen.de/video-aegypten--ein-wald-mitten-in-der-wueste-100.html https://www.planet-wissen.de/video-aegypten--ein-wald-mitten... ), if you jump to 01:55 you'll see the small pipes that distribute the water, but it's a bit more than just "drip irrigation" (at 02:34 it's visible that it's more than just a few drops).