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.
00:00:40Beijing, northeast,
00:00:43about 1330 kilometers from the city center. A
00:00:47sea of spirits covering about 41.5 square kilometers,
00:00:50with an area comparable to a small linear city. The forest
00:00:54coverage rate is as high as 95%, and
00:00:5765% of the trees are above 65%.
00:01:12Some blow up mountain peaks and bones, leaving precious species genes. Some stand at high
00:01:15altitudes, facing cold winds and blood,
00:01:19and some stand for years, silently
00:01:22recording the past of the forest.
00:01:26They seem to be scattered and distributed, but they each have their own
00:02:00representative of Wuling Mountain.
00:02:04This is the core area of the Yanshan Mountains, serving as a natural
00:02:08boundary between the northern grasslands and the central plains. Since the Eastern Han Dynasty,
00:02:12it has been a place of strategic importance for military strategists. In the Ming
00:02:16Dynasty, it even became an outer defense system
00:02:19for the Great Wall.
00:02:22Historically, ordinary wars made it difficult for primitive forests
00:02:26to survive for a long time.
00:02:31However, today's Wulingshan is lush and green.
00:02:34This ecological paradise is inseparable
00:02:38from the efforts of several generations to restore the ecosystem, and it is even more due
00:02:42to 89 ancient trees with an average age of about 210 years.
00:02:46。
00:02:48They are scattered among the mountains like pearls in the vast sea, preserving
00:02:52precious original genes for the ecological restoration of Wuling Mountain, and even
00:02:56more steadily supporting the basic framework of the community structure.
00:03:03Throughout the year, forest rangers use the growth points of ancient trees as markers
00:03:06to patrol the entire forest.
00:03:09Oh, it's really not easy to get
00:03:13here. It's still pretty much the same
00:03:16as before.
00:03:18These two ancient cypress trees growing in the ruins of an ancient temple are the oldest
00:03:22ancient trees in the Wulingshan protected area. The trees are about 320
00:03:26years old.
00:03:39At the same time, it has cypress, Wutong poplar, incense poplar, Pinus tabulaeformis and other
00:03:43ancient trees with historical and ecological value.
00:03:46。
00:03:48Among them, the rarest are the four bamboo ancient Wutong poplars.
00:03:51They grow in the valleys of the Southern Heng Mountains at an altitude
00:03:55of 1200 meters. Fortunately,
00:03:57these trees have not been replanted.
00:05:12It is a unique and endangered species in China.
00:05:14。
00:05:21One thousand to one thousand six hundred meters, this height, too low is not good, it does not have, too high is not
00:05:25good. Most poplar trees have strong
00:05:29vitality and a wide range of uses, making them a model
00:05:33of hard work and endurance among plants.
00:05:35Only the Wutong poplar has extremely demanding requirements for its habitat.
00:05:39。
00:06:18It also makes him appear extraordinary and different. What is
00:06:21even more surprising is that most poplar trees are difficult to live
00:06:25for more than a hundred years, but the Wutong poplar itself can
00:06:29live for about 300 years.
00:06:33The academic community is still exploring the secret of their longevity,
00:06:36but their continued existence to this day is related to a past
00:06:40event.
00:06:44In the 13th year of Kangxi (1675), Wei Huqing
00:06:48of Dongling Qing government issued an order to close Wuling Mountain.
00:07:02The fragile Wutong poplar seized this opportunity to grow
00:07:06into a towering tree. And this is
00:07:10also the most important event in the ecological history of Ling Mountain.
00:07:3462.7 62.7
00:07:38I see what this is, this evergreen small tree, what kind of
00:07:42broad-leaved tree, a natural ecological observation station.
00:07:53There are more than 80 ancient trees
00:07:57in the entire ancient tree cluster.
00:08:03The evergreen branches and leaves make them a natural breeding ground for wild animals.
00:08:12You see, at that time, it was called the Milky Way's long-term friend circle.
00:08:16They eat the pine nuts or small beds
00:08:20that fall on them. There are
00:08:24over 200 species of birds
00:08:27here. There are six species at the national first
00:08:31level, as well as national second-level and Beijing municipal
00:08:33protected species.
00:08:36The prosperity of birds is an important indicator of forest
00:08:39vitality.
00:12:49Visit a generation of masters and seek a thousand-year-old cultural heritage. Let us take one step
00:12:53for a thousand years and embark on a group visit.