Giant Sequoias Struggle with Drought - KQED QUEST

[@erwt0077]

More people need to see this

[@dottiannblakemore9231]

I agree. Would love to see an update on this study.

[@andrewbetrosian2784]

At lest the once that care.

[@tomjerry84]

It hurts me, and I appreciate these researchers. But I also know clearly that human will never stop destroying. The only moment that human can stop destroying is... When they have nothing left to destroy

[@Exderius]

They will only stop once the effects of climate change and deforestation take full effect. Its so painful

[@johnsmiff8328]

Fun fact water doesn't get "sucked up" as if in a straw, the tree isnt generating a vacuum to pull water up, it's actually much more fascinating. In the leaves(needles/scales) there is a very high surface area interface between the water vascular system of the tree and the atmosphere. As water evaporates out of the leaves, the surface tension of the water pulls the water towards the water/air interface. Because water has high cohesion forces between water molecules, the surface tension pulling on the water just behind it pulls all of the water in a continuous column up from the roots. This means that trees exploit surface tension and capillary action physics to get water up to their leaves for free instead of expending a prohibitive amount of energy to suck water up to the top. One consequence of this is that if the column of water in the xylem is ever interrupted by air bubbles the top of the tree will dehydrate and die.

[@blakespower]

yeah that's what she said in the video

[@WilhelmWilder]

Ha, nerd

[@wheelmanstan]

standing in the top of a giant sequoia...so strange, fortunate, awesome, I mean THAT'S a selfie

[@AlvinLee007]

It's a drought. Let's help these big trees by burning the rest. These people have a weird sense of humour. Oh and requesting the wardens to water the plants is considered *"unnatural actions"*? We have most certainly failed the planet as caretakers.

[@peterbobby99]

Yes, it's unnatural. You don't see humans walking throughout the wilderness making sure trees are being watered. Fires are a natural process for forests to undergo, several plant species' have seeds that require fire to germinate. Reducing the amount of competition allows these Giant Sequoia trees to thrive.

[@andrewbetrosian2784]

I want to see these trees so bad, I have 3 species of redwoods in pots, Sequoia's, coast and dawn.

[@johnsmiff8328]

Did you grow from seed?

[@roberttheiss6377]

going to pot one and eventually plant it as center piece in backyard - which do you recommend?

[@andrewbetrosian2784]

@@roberttheiss6377 Dawn redwood

[@andrewbetrosian2784]

@@johnsmiff8328 yes

[@knuckledraggingneanderthal720]

After years of fire suppression the competing trees in the under story use most of the soil moisture and eventually kill some giant sequoias.

[@johanconradie2120]

they have been around for THOUSANDS! of years? !! and you want to help them! (my grandchildren want to help me from ageing !) thank you.

[@roberttheiss6377]

some have lived for 2000+ years and 100 forest fires, I'm sure they'll be OK if you leave them alone.

[@keiseegee]

sooo how can i become one of these tree climbers? looks like so much fun, and such a fulfilling career!

[@426superbee4]

Well time to get the water planes out < > and give them some water !

[@blooky102]

Hmm my potted Sequoia actually likes the hot temperatures we have in the UK its over 30 C there which is unusual for the UK but the tree is thriving, however my Coastal Redwood is struggling with the intense sunlight so I gave it a water spike to give it constant water, I am worried as its new branches are turning brown.

[@Jpwillerd]

so basically the planet is dyeing and we are going down with it.

[@dirtydevel223]

No. The planet us dying and we are causing it. Every time we choose to commute instead of walking

[@penand_paper6661]

No, the planet is changing for the worse (not dying, the changes should last several thousand years at least, but life will live on much longer), and we're gonna have to weather it. We won't die (I doubt the redwoods will die either, as they've faced a megadrought or two in the past 1100 years, and many of them are that age), but we'll have to adapt, or change our ways now.

[@SubliminalSociety]

Their roots must be extremely deep and have access to lots of water

[@blakespower]

can you build water towers in all the sequoia groves? fill them up in winter then use the water in the dry summer months in droughts

[@lia-gym]

thanks! can you tell about blacking of sequoiadendron to form the root system

[@blakespower]

do they really need to climb the trees these days? I drone can do the same thing without any damage

[@derrickcross8676]

Look at this big ASS trees man

[@andrewbetrosian2784]

Why cant they use planes to water them like they do with fires !

[@donniereiter3646]

Crazy

[@DavidHuber63]

Please leave the ❤tree alone and stop playing on it, we don't have many left. TY

[@livingstone6275]

YOUR MISSING THE KEY INGREDIENT FOR SURVIVAL. YOU NEED TO BE SPRAYING EM-1 MICROBIAL PRODUCT ON THE TREE BASE AND SOILS SURROUNDING THE TREES FOR SURVIVAL.

[@KJV7154]

Didn't know nature needed mans help....."rolls eyes"

[@DavidHuber63]

Leave the tree alone please, you stress it out by climbing on it

[@mrlepercon]

is it time to start irrigating these mofos?

[@diana6498]

Ganss lehrnhaftes viedeo

[@christined3953]

I just pinch the cutting and can tell. No need for your fancy tech.

[@АлександрФедосов-щ9б]

👍🏻

[@huhwut6303]

Global warming

[@AdamPNelson]

im the 21st comment