Google Cloud Speech-to-Text API (Chirp) + Gemini 2.5 Flash Non-Thinking. Treat it as a searchable index of what was broadcast, not a quotation record.
00:00:34The original meaning of the character "Xian" is a type of small
00:00:38aquatic sound creature. Interestingly, it is also the name of
00:00:42a tree, Xianmu.
00:00:44。
00:00:48Xianmu is not common. In China, it is mainly distributed in the
00:00:52western part of Guangxi, the southeastern part of Yunnan, at an altitude of 700 to 900 meters
00:00:56in the limestone mountains and rainforests.
00:01:11But it is very hard. It is difficult to cut with a knife, and water cannot penetrate it, so it is known as "ironwood".
00:01:14。
00:01:18In the Nonggang National Nature Reserve in Guangxi, there is a tree that is approximately 2300 years old.
00:01:22It is currently the oldest individual tree
00:01:25with the largest volume in China. It is an indigenous
00:01:29species.
00:01:39In 2024, a
00:01:43sudden typhoon swept through this wild Xianmu community in the Guangxi Hong Kong National Nature Reserve.
00:01:47There are four precious Xianmu trees here, all of which are
00:01:50over a thousand years old. In the strong wind,
00:01:53one of the branches of the tree
00:01:57was broken. According to the regulations, we can bring it back to our management center to understand the growth of the entire tree during a certain year.
00:02:12The texture of the wood is extremely fine and strong, and its hardness is generally
00:02:17incomparable.
00:02:20The annual rings are even more special.
00:02:27There are also
00:03:00how many years it takes for it to grow so large?
00:03:04Through our conversion, the age is estimated to be approximately
00:03:072300 years old.
00:03:09。
00:03:13The place where the Xianmu King grows is located in Longzhou County, southwestern Guangxi,
00:03:16which is a karst landform area in the Zuojiang River basin.
00:03:19Here, the wind is like a sword, and the stone mountains
00:03:23are like a huge ink painting.
00:03:26However, the background of this painting
00:03:30is harsh.
00:03:33Surface water is scarce, and the soil is as thin as paper.
00:03:37For most plants, it is not very friendly.
00:03:41But Xianmu has a special preference for such a harsh environment.
00:03:44It generally grows
00:03:48on the slopes of our karst mountains.
00:03:52Below the cliff, at the position above the ground,
00:03:56it forms an inclined angle, just like our
00:04:00skirts worn by girls.
00:04:01,
00:04:05Growing on the slopes at the edge of the cliff is not an easy task.
00:04:08But Xianmu likes to cover
00:04:12the rich calcium in the rocks, constantly nourishing the tree body, creating
00:04:16the rare characteristics of Xianmu. The older the tree, the harder
00:04:20the wood becomes. Because one side
00:04:23is a cliff, it grows and grows until it is complete.
00:04:27Interestingly, the mystery of Xianmu
00:04:31is also hidden within it. This tree,
00:04:34so when it grows, its growth rate towards the cliff
00:04:38will be slower. Its growth rate outwards
00:04:42will be faster. This is why the main difference between Xianmu and other trees
00:04:46is its cross-section. Most trees are
00:04:50concentric circles. This tree is different.
00:04:52So its cross-section is annual rings.
00:04:56。
00:05:13The triangular buttress roots, like giant snakes, pierce into the rock crevices,
00:05:17pushing open the rock wall. In the hard limestone,
00:05:20they absorb calcium and thin nutrients.
00:05:23This steel frame
00:05:27allows it to firmly anchor itself to the mountain, withstand flash floods,
00:05:30and even resist landslides and collapses.
00:05:33。
00:05:38In front of this tree, a clear
00:05:41sign can be seen.
00:06:19It broke. The stable and strong buttress roots, and the iron-hard tree canopy.
00:06:23。
00:06:27It's not just that. In the morning,
00:06:30you will observe
00:06:31that
00:06:34the leaves are very shiny and reflective, as if the entire tree is glowing. But around noon, you won't see
00:06:38that shiny surface anymore.
00:06:42The leaves of Xianmu are also particularly special.
00:06:45They hold another secret to its survival.
00:06:48In hot and dry limestone mountain
00:06:52areas, preventing water loss and sun exposure is an essential survival skill
00:06:56for tall trees. The leaves of Xianmu
00:06:59have a well-developed cuticle,
00:07:01which can effectively lock in moisture and prevent
00:07:05excessive transpiration. The smooth, waxy surface
00:07:08also acts like a mirror, reflecting some sunlight.
00:07:14We also observed a very interesting ecological phenomenon. When the sunlight
00:07:18is very strong, it will slowly tilt
00:07:22from this flat state to a certain angle,
00:07:25thereby reducing the area directly exposed to sunlight
00:07:29on its surface, and thus reducing water
00:07:32evaporation. The excellent qualities born from the rain
00:07:36and earth have created the legend of the King of Xianmu.
00:07:38But two thousand years of existence
00:07:42must be inseparable from human protection.
00:07:44。
00:07:48The village of Longhu near the King of Xianmu is a centuries-old
00:07:52Zhuang ethnic village.
00:07:55According to local legend, an ancestor named Gaogong once fought
00:07:58fiercely with a tiger to protect the nine households in the village.
00:08:02。
00:08:05The year after Gaogong sacrificed himself, a Xianmu tree sprouted
00:08:08in front of his tomb, and grew little by little.
00:08:14Therefore, the villagers consider this Xianmu tree to be the embodiment
00:08:18of their immortal ancestor Gaogong, and call it
00:08:21"ancestor tree." It has also become
00:08:25a symbol of their memories of home.
00:08:28Since the generation of our ancestors, it has grown so big, it is like our ancestor.
00:08:32We come to tell it about anything we have.
00:08:36When we used to go out for school or work, and came back and saw it from afar,
00:08:40we felt very safe.
00:09:15We are still afraid of insects causing damage to the entire tree. From here,
00:09:19we remove some rotten wood from the outside, then scrape it off, and then we
00:09:22apply a protective layer to the entire tree to protect it. For a tree
00:09:26that is over two thousand years old, it is generally still quite healthy.
00:09:29。
00:09:33Two thousand years of ups and downs, countless hardships.
00:09:37It will endure all the harsh winds
00:09:41and storms.
00:09:44With its thin bark, it carefully preserves
00:09:47itself.
00:09:49The true backbone of life has never been about external height,
00:09:53only about the inner
00:09:56strength and composure.
00:13:42The domestic consumer market is stable and rising. The National Healthcare Security Administration announced the "National Healthcare Security 15-Year Plan", which proposes
00:13:45that by 2029, basic provincial-level pooling of national healthcare security
00:13:49will be achieved, promoting national healthcare security from being available
00:13:53to being good. Eight months after the first flight and recovery failure,
00:13:57the Zhuque-3 Yao-2 rocket successfully launched yesterday.