"As solar panels heat up beyond 25°C, their efficiency decreases markedly. Green roofs moderate rooftop temperatures. So we wanted to find out: could green roofs help with the problem of heat reducing the output of solar panels?
Our research compared a “biosolar” green roof — one that combines a solar system with a green roof — and a comparable conventional roof with an equivalent solar system. We measured the impacts on biodiversity and solar output, as well as how the plants coped with having panels installed above them.
The green roof supported much more biodiversity, as one might expect. By reducing average maximum temperatures by about 8°C, it increased solar generation by as much as 107% during peak periods. And while some plant species outperformed others, the vegetation flourished.
These results show we don’t have to choose between a green roof or a solar roof: we can combine the two and reap double the rewards...
How did the panels affect the plants?
In the open areas, we observed minimal changes in the vegetation cover over the study period compared to the initial planted community.
Plant growth was fastest and healthiest in the areas immediately around the solar panels. Several species doubled in coverage. We selected fast-growing vegetation for this section to achieve full coverage of the green roof beds as soon as possible.
The vegetation changed the most in the areas directly below and surrounding the solar panels. The Baby Sun Rose, Aptenia cordifolia, emerged as the dominant plant. It occupied most of the space beneath and surrounding the solar panels, despite having been planted in relatively low densities.
This was surprising: it was not expected the plants would prefer the shaded areas under the panels to the open areas. This shows that shading by solar panels will not prevent the growth of full and healthy roof gardens.
What were the biodiversity impacts?
We used environmental DNA (eDNA) surveys to compare biodiversity on the green roof and conventional roof. Water run-off samples were collected from both roofs and processed on site using portable citizen scientist eDNA sampling equipment to detect traces of DNA shed by the species on the roof.
The eDNA surveys detected a diverse range of species. These included some species (such as algae and fungi) that are not easily detected using other survey methods. The results confirmed the presence of bird species recorded by the cameras but also showed other visiting bird species went undetected by the cameras.
Overall, the green roof supported four times as many species of birds, over seven times as many arthropods such as insects, spiders and millipedes, and twice as many snail and slug species as the conventional roof. There was many times the diversity of microorganisms such as algae and fungi.
Encouragingly, the green roof attracted species unexpected in the city. They included blue-banded bees (Amegilla cingulata) and metallic shield bugs (Scutiphora pedicellata).
How did the green roof alter temperatures?
The green roof reduced surface temperatures by up to 9.63°C for the solar panels and 6.93°C for the roof surfaces. An 8°C reduction in average peak temperature on the green roof would result in substantial heating and cooling energy savings inside the building.
This lowering of temperatures increased the maximum output of the solar panels by 21-107%, depending on the month. Performance modelling indicates an extensive green roof in central Sydney can, on average, produce 4.5% more electricity at any given light level.
These results show we don’t have to choose between a green roof or a solar roof. We can combine them to take advantage of the many benefits of biosolar green roofs.
Biosolar roofs can help get cities to net zero
The next step is to design green roofs and their plantings specifically to enhance biodiversity. Green roofs and other green infrastructure may alter urban wildlife’s activities and could eventually attract non-urban species.
Our green roof also decreased stormwater runoff, removed a range of run-off pollutants and insulated the building from extremes of temperature. A relatively inexpensive system provides all of these services with moderate maintenance and, best of all, zero energy inputs.
Clearly, biosolar green roofs could make major contributions to net-zero cities. And all that’s needed is space that currently has no other use."
-via GoodGoodGood, May 12, 2024
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I’m here for your weirdest little guy, the most whacky little goofball you can provide. I haven’t decided if they’re going to become an oc or just some doodle motivation, but I have seen so many people get really pretty creatures so I am hoping to break that streak and get the freakiest freak you got! Dream goal would be if you pulled out something on the same level as a tailess whip scorpion, (if anyone is even slightly arachnophobic I would not look them up, they are like the “worst” parts of spiders cranked up to 11, otherwise definitely look them up they’re cool as hell)
That’s all I got, let’s test my luck!! Big money no Whammies!
String identified:
’ t tt g, t t ac tt ga ca . a’t c t’ gg t c a c t tat, t a a gt a tt cat a g t a tat ta a gt t at a gt! a ga t tg t a a a ta c, ( a gt aacc t t , t a t “t” at ca t , t t t t’ c a )
Tat’ a gt, t’ tt c!! g a!
Closest match: Solanum dulcamara genome assembly, chromosome: 12
Common name: Bittersweet nightshade
(image source)
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how about that uhhhhh Fantasy Julie. she gets her sword <3 no one can take it from her <3
rambles:
SIKE you get an extra, lower quality doodle
SIKE AGAIN here's the rambles
yeah... i caved and gave her a tail... I'm Not Sorry! it's cute! i wanted to stick with her sorta flower motif - it's stronger in her princess look, since I imagine that when she was part of the royals she was very blatantly flower power based. it was her Thing!
but a Julie free of her noble shackles... she deserves her big sword. like yeah, she has flower magic, but who needs it when she has a Giant Blade??? on the royalty vein, and if we're classifying "rainbow monster" as a species, i feel like horn size/curve would be a status symbol of some kind. maybe Julie would have kept her horns filed short. but if she ran away from that life... longer horns! i like to imagine that they'll keep growing until she has a pair of Extra Weapons attached to her head! curved forward like mammoth tusks maybe!
i imagine that like Frank, she goes with minimal armor - range of movement over protection, yk? some scale mail over her front, a thick leather flower over her chest w/ scalloped leather pauldrons, wrist armor and metal knuckles! i'd think that the faux-suspenders include a back sheath for her sword... i wish i'd thought of that Before i finished the little ref! i don't feel like going back and editing!
i imagine that she was forced to cut her hair when it got caught in something (a gelatinous cube, mayhaps). it didn't look good! don't let anime and Mulan fool you! cutting your own hair with a blade will not look nice! but someone - Eddie, probably, he's good with scissors i'd assume - cleaned it up for her. and hey, it didn't look bad! plus, Julie probably liked being able to just tuck up her long strands into her hat when she's feeling a bit more like a Julius than a Julie!
it's been a fun challenge transforming their canon outfits into a similar variation with fantasy flavoring and twists! i want them to suit the setting but still maintain Themselves! Julie's was tough i gotta admit. i was messing around with the princess look and the fighter look side-by-side. it worked better when i sat back and thought "fighter Julie is Julie unrestrained. that version would be more aligned with her canon look"
i wanted her princess form to look Restrained! she has to be a ~delicate flower~, a noble woman, pristine and poised and very much a princess. soft colors, poofy clothing, bright white gloves that are not to be sullied. carefully bundled up hair! jewelry! that dress must be Heavy and hard to move in! her tail must be so cramped under there!
but Julie Unleashed? violent pinks! rose gold accents! short skirt so that she can sprint and Kick! fun boots that she can be active in and delight in watching them get dirty! her hair is free to whip in the wind and get caught in things! fun straps and Deadly Accessories! a sword that she stole from the royal armory on her way out the window! she has forearm wraps both to match Frank and to support her wrists!
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super rare plants that ONLY grow in Appalachian region
Gentiana decora
Castilleja kraliana
Scutellaria montana
Clinopodium talladeganum
Blephilia subnuda
Phacelia fimbriata
Sarracenia jonesii
Euphorbia purpurea
Draba ramossisima
Paronychia argyrocoma
Trillium tennesseense
Marshallia mohrii
Convolvulus sericatus
Corallorhiza bentleyi
...and many more!...
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