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Earth Science

Ancient Forest Found at Bottom of Huge Sinkhole in China (theguardian.com) 30

An ancient forest has been found at the bottom of a giant sinkhole in China, with trees up to 40 metres (130ft) tall. From a report: Scientists believe it could contain undiscovered plant and animal species. Cave explorers in the Guangxi region of southern China alerted scientists when they found the sinkhole, which had a primitive forest inside. Among 30 sinkholes in Leye County this is the largest, at 306 metres long, 150 metres wide and 192 metres deep. Zhang Yuanhai, a senior engineer at the Institute of Karst Geology of the China Geological Survey, told the state news agency Xinhua that the site had three caves in its walls and a well-preserved primitive forest at the bottom. Scientists trekked for hours to reach the base of the sinkhole to see what it contained. Chen Lixin, who led the expedition team, said that as well as the trees there was dense undergrowth on the floor that came up to his shoulders.
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Ancient Forest Found at Bottom of Huge Sinkhole in China

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  • Uhhhhh (Score:5, Funny)

    by jacks smirking reven ( 909048 ) on Friday May 20, 2022 @01:56PM (#62552854)

    Maybe we should stay out of there, sounds a little too, eldritchy to me.

  • No more details? (Score:5, Informative)

    by TwistedGreen ( 80055 ) on Friday May 20, 2022 @02:03PM (#62552902)
    Interesting story but wow, not much to that article...
  • by cruff ( 171569 ) on Friday May 20, 2022 @02:22PM (#62552950)
    Why would the sinkhole be that different from the surrounding flora above? After all it would be obvious that seeds would arrive from the surrounding forest above the sinkhole, and it seems likely that birds might transport seeds out of the sinkhole.
    • by rgmoore ( 133276 )

      The bottom of the sinkhole is likely to be a very different environment from the land above. The sinkhole is deeper than it is wide, which means it's likely to be in shade for a substantial part of the day. The sinkhole will also serve as a drain for the surrounding area, so it will be much wetter. That might very well be enough to support a completely different ecosystem.

    • Different light and water conditions in the sinkhole may make competition favor different species. Animal access is limited, so their impact may be felt in what vegetation thrives. Existing trees have an advantage over new growth. Etc.

    • by Whateverthisis ( 7004192 ) on Friday May 20, 2022 @03:31PM (#62553166)
      It's hard to find much on this particular sikhole but it's not unheard of for it to be it's own ecosystem. For example, the Grand Canyon in the US actually has 5 ecosystems that you walk through just by hiking from the top to the bottom, with very different animal and plant life. It stands to reason that this sinkhole, which has relatively high walls (about 150 meters) but a relatively large floor that it gets significant light for a very narrow amount of time and otherwise would change temperature and humidity very drastically over the course of a day.

      I suspect they're calling it "ancient" though because in pre-historic eras when the planet was much warmer, there was an abundance of plant life and things grew tall. In this sinkhole they're tlaking about how the plants are very tall, like pre-historic plants. However they're likely tall due to evolution; ie they have to grow tall to maximize the amount of light they get in the narrow window available.

    • Thats the missing info. Would love some year around temperature readings vs outside. I think submerged agriculture could be a big thing due to easy climate controls. Already being used for Nebraska citrus:
      https://nebraskapublicmedia.or... [nebraskapublicmedia.org]

    • The Dawn Redwood [wikipedia.org] was thought to be extinct for 65 million years, until they were found growing in China.

  • by muh_freeze_peach ( 9622152 ) on Friday May 20, 2022 @02:26PM (#62552960)
    The Hollow Earthers will surely appropriate these kinds of stories to harden their wacko arguments.
  • by Ungrounded Lightning ( 62228 ) on Friday May 20, 2022 @02:27PM (#62552962) Journal

    ... a senior engineer at the Institute of Karst Geology of the China Geological Survey, told the state news agency Xinhua that the site had three caves in its walls and a well-preserved [still alive] primitive forest at the bottom.

    I wonder whether there are any well-preserved ancient lines of virus there. Somebody ought to check the bat droppings in those caves.

  • It's probably full of bats. Let's go in there, retrieve a few, study them and modify their diseases. Wear sensible shoes, a hat and a waterproof jacket please. We don't want to take any chances.

  • It's full of stars!

  • The locals have been keeping their sheep there for the last 4000 years.

  • No ancient curse, no subtitles, either; just this rather primitive looking lawnmower-and-tree-shredder built by ancient landscaping professionals, hardly used.

    There's still a horror movie to be made.

    • by Guignol ( 159087 )
      it has been said...
      ...

      ...
      that this time would come...
      ...
      ...

      and then, there would be those who could see the subtitles,...

      and those would be safe...

      cause they would be the chosen ones...
      ...
  • Looks like a contempary, living forest to me. What exactly makes it "ancient" other than it sounds cool for a headline?

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