Comment on Liquid Trees
bennypr0fane@discuss.tchncs.de 11 months ago
I guess the “problem” with trees is obvious: it takes decades for them to produce the desired cooling effect in urban areas. You plant a dozen young trees today, you can begin to reap the cooldown 10 years later at best. Also, they need a lot if water, and many of them just don’t make it - urban surroundings are just much hotter and more stressful (smog, salt…) then standing with other trees in a forest. I fail to see though how these artificial “trees” pesticide any kind of benefit at all.
I think the problem is putting them in those dumb tanks where a tree would be, as if to say “do this instead”. The principle would be fine if they got a bit more creative with it and played to its strengths, e.g. if you make a train platform out of it, or the railings of an overpass, or the external wall panels of buildings etc.
Ofc OOP didn’t actually provide a source so we’ve no idea what the creators were actually thinking…
A cursory search for “liquid trees micro algae” led me here: liquidtrees.org/urban-solutions
The amount of water required is trivial compared to most other water uses. Especially if correct species are selected.
The London plane tree is particularly suitable for urban areas, it’s resistant to air pollution.
True, but unfortunately, this species is way over-planted in many cities. I would not recommend them unless they happen to be uncommon in your local area. Urban forests need to be as diverse as possible to resist the constant barrage of pests and diseases being introduced by global trade.
In California we have a relatively new pest called shot-hole borers which are killing off many of the London planes, so we’re scrambling to plant other species that can resist them.
In Vienna, we actually import Australian species because of their strong resistance to heat. The very commonly used native buckeye trees have been eaten away at by pests for decades now, and I’m surprised they do not actually seem to die off, but they just stand there with brown leaves for most of the year.
Also, resistance to air pollution isn’t as crucial as it once was due to better emissions technologies.
Tell that to the recently defunded EPA…
InFerNo@lemmy.ml 11 months ago
The roots destroy sewer systems etc too. There’s a bike path I take to work where the pavement is all distorted by the roots, making it very unsafe, but I still prefer that the trees are there.
pdqcp@lemmy.dbzer0.com 10 months ago
That’s why you have to properly select the species that will be planted, there are many different species which have roots that won’t cause this type of damage and you can most likely get by with native plants for better adaptability