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.
00:00:05Everyone holds faith,
00:00:07the world is better.
00:00:11Faith comes from the heart.
00:00:29.
00:00:50Every year on this day, the sun's direct rays reach the northernmost point
00:00:53of the year.
00:00:55.
00:01:17The world's second largest desert, the Arabian Desert, spans the desert
00:01:21in northern India and southeastern Pakistan. And the desert areas
00:01:24at the border between the United States and Mexico.
00:01:27.
00:01:33Only in southern China is it a scene of lush greenery
00:01:37and serene beauty. .
00:01:50One of the four famous mountains in southern Li, Dinghu Mountain
00:01:53is located here.
00:01:55.
00:02:11Mr. Bian, Mr. Bian, look, I found a yellow seed. It's a very common
00:02:15plant. It's from our walnut family. It was discovered in Guangdong in 1831.
00:02:19The yellow walnut plant.
00:02:22Its fruit is spherical. The most important feature
00:02:26is this structure on the bottom left. We call it the calyx.
00:02:53These are all strategies for plant reproduction. .
00:03:00Wind chimes are crisp, ancient trees are like a dining hall,
00:03:02and waterfalls flow.
00:03:06This is not only a holy land for cultural and historical tourism, but also an important
00:03:10popular science base for teenagers in the Guangdong-Hong Kong-Macao Greater Bay Area.
00:03:13On average, nearly 10,000 teenagers come here every year for research
00:03:17and exploration.
00:03:18.
00:03:22In order to determine the theme and route of the next season's popular science activities
00:03:25, the popular science editor of the Dinghu Mountain Nature Reserve Management Bureau
00:03:29and Jin Yan invited two plant experts
00:03:33to conduct a five-day inspection of Dinghu Mountain.
00:03:37We will connect the entire route
00:03:40with the fruits or seeds of various plants with Dinghu Mountain characteristics.
00:03:44I will take them to discover not only
00:03:48the appearance of the seed itself , but also its significance
00:03:51to the entire forest ecosystem, including the deeper scientific
00:03:55and ethical implications behind it.
00:03:57.
00:04:30Because of the control of the high-pressure summer heat, it is dry and has little rain throughout the year.
00:04:34However, the dragon flag of the Himalayas changed the atmospheric
00:04:37circulation in Asia, forming the East Asian summer monsoon,
00:04:41bringing abundant moisture to South China,
00:04:45plus the uplift of the terrain, creating a vibrant
00:04:48and lush primeval forest in Dinghu Mountain.
00:04:52.
00:05:48Two hundred
00:05:50million years ago, it was still under the corner of the night, and today it is still stretching its leaves
00:05:54in the ancient gao. .
00:05:57It is a kingdom of plants. There are various
00:06:00types of species in the car, from small grasses to shrubs
00:06:04that are almost as tall as me, and very tall trees. They
00:06:08form a three-dimensional garden, providing better
00:06:12CCD for other animals. So it is a paradise of life.
00:06:22? This is a device we use to monitor plants after a mistake.
00:06:26What is the purpose of our post-event monitoring?
00:06:30Through long-term monitoring, we can more accurately
00:06:34predict the flowering period of each plant, especially for our tourist scenic
00:06:37areas and agricultural plant areas, which are of great
00:06:41significance.
00:06:47Flowers and trees are nourished by stones, and spring
00:06:52returns to the four seasons, doing their work naturally.
00:06:59Germination, flowering, fruiting,
00:07:03and leaf fall.
00:07:05These rhythms of life that change with time
00:07:09are the language of nature.
00:08:01Because it grows on dark and damp rock walls, it has neither the help of wind
00:08:04nor the mediation of animals. Yet it can cleverly complete the task
00:08:08of pollination. . In order to reproduce in silence,
00:08:13the yellow flower developed a new self-pollination
00:08:16mechanism. Pollen slides to pollinate.
00:08:19. When the anther opens,
00:08:23oily, viscous pollen emerges
00:08:26, forming a spherical shape, then connected
00:08:30by sticky threads into a bead-like chain, slowly sliding towards the trumpet-shaped
00:08:33opening of the stigma, thereby achieving self-pollination.
00:08:36Although this short three-millimeter journey takes
00:08:4016.5 hours.
00:08:43But its entire process does not rely on any external force, breaking through
00:08:47the survival barrier. Afterward, its seeds are scattered by water
00:08:50everywhere, waiting for the next year to germinate.
00:08:53. In 2004,
00:08:56this achievement was published in the internationally renowned scientific
00:09:00journal Nature, and was considered to have important scientific
00:09:04significance for studying the evolution of flowering plant reproduction.
00:09:08.
00:09:10Is this not it?
00:09:43Dinghu double-flowered vine, Dinghu grass, etc.
00:09:46This is the Dinghu hanging orchid discovered
00:09:50here in 1928.
00:09:51.
00:09:56In 1928, botanist Chen Huangyong began
00:10:00to establish and preside over the work of the Sun Yat-sen University Peasant Plant Research
00:10:04Institute.
00:10:05.
00:12:16In
00:12:161979,
00:12:21the Dinghu Mountain Nature Reserve was approved by UNESCO as a World Biosphere Reserve. Since then,
00:12:25Dinghu Mountain has opened the road to international scientific
00:12:28cooperation, and incorporated the biosphere concept into
00:12:32protected area management.
00:12:33.
00:12:37And the biosphere, as the largest ecosystem on Earth, encompasses all life on Earth and its living environment,
00:12:41which is of paramount importance to the ecological balance of the Earth.
00:12:45.
00:12:49Today, more than 2,600 nature reserves
00:12:53in China have implemented
00:13:34the zoning. Dinghu Mountain began to enter this kind of permanent monitoring scientific research. Li Chengbei. Dinghu Mountain is composed of ten continuous jade mountains,
00:13:38covering an area of 115 kilograms, with a vertical belt
00:13:42ranging from 14 meters to 1.3 meters in altitude.
00:13:45From the foothills to the mountain top, riparian forests
00:13:49are distributed.
00:13:53Mixed coniferous and broadleaf forests.
00:14:06Among them, the monsoon evergreen broadleaf forest is a primeval forest
00:14:10with a protection history of more than 400 years. Its area has
00:14:14increased from more than 1,900 mu when the nature reserve was established in 1956
00:14:17to the current 3,300 mu.
00:14:20目
00:14:21.
00:14:35when it is small, it is usually those rodents or squirrels and other
00:14:38mice.
00:15:26Seeing this group of creatures, then it probably determines
00:15:29the half-body species below, that is, the species that grow with it below, must adapt
00:15:33to the microenvironment it creates. The microenvironment includes ours.
00:16:37As the name suggests, it is regarded as
00:16:40a symbol of loyalty. The Tang dynasty poet Li
00:16:43Bai once used the poem "A pair of white gibbons, buy me a pair of white
00:16:47gibbons" to express his love for white gibbons.
00:16:50. In the Qing Dynasty, white gibbons
00:16:54were embroidered on the official robes of civil officials of the fifth rank, taking
00:16:58the meaning of elegance and not being ostentatious.
00:17:02Infrared cameras once captured white gibbons, wild boars, and porcupines
00:17:06feeding together.
00:18:08There's still some edible stuff
00:18:11on the ground. That
00:18:12person.
00:18:16.
00:18:36Mountain.
00:19:07The saplings have space to grow up.
00:19:10. Like the invisible
00:19:13insects, or the visible mushrooms, they will also grow at the same time,
00:19:17so at this time, what I see is a natural
00:19:21cycle, a true continuation of life.
00:19:23.
00:19:26Giant trees fall, and the decaying wood and fallen leaves turn into nutrients
00:19:29to nourish the soil. .
00:19:33Saplings, with ample light and abundant moisture,
00:19:37and changes in microhabitat, emerge from the shadows into the sunlight,
00:19:41gradually forming a new forest structure. This
00:19:45is the regenerative power of the natural cycle, and also proof of the healthy
00:19:49forest of Dinghu Mountain.
00:20:00Old teachers, look, this is the official red bean.
00:20:03.
00:20:37It is also an important member of the Dinghu Mountain monsoon evergreen broadleaf forest.
00:20:41.
00:21:02The red bean loves warm and humid conditions, and the subtropical monsoon climate
00:21:06has become the most ideal
00:21:09.
00:21:13In 1998, the red bean was listed in the IUCN
00:21:17Red List of Threatened Species. .
00:21:20In 1999, it was listed in the first batch of national key protected wild
00:21:24plants in China.
00:21:26.
00:21:28Today, the touch of Chinese red amidst the lush green mountains
00:21:32is the most beautiful scenery of Dinghu Mountain. So, what
00:21:36mysteries of life have researchers discovered in their monitoring of
00:21:40red bean plants? All red beans
00:21:44are national second-class protected plants. We recorded
00:21:47the altitude of every single one.
00:23:39In this way, scientists can press the fast-forward button in the real world
00:23:42.
00:23:44Observe how forests will respond and adapt
00:23:48to climate change in the coming decades. While forests are affected by climate change, Dinghushan is also continuously monitoring the important impact of plants on other aspects of the earth. This platform is called Five Stars, it is 300 meters high. From the type, it belongs to this true powder, but with this slow eye, it can be said to have become
00:24:18from our ecology.
00:25:20Mitigate global climate change.
00:25:34Hurry, hurry!
00:25:51Dinghu Mountain's Sky Tower ground view, vertical
00:25:54three-dimensional observation platform, is collecting data at a frequency of millions of data points
00:25:58per day, tirelessly capturing the forest's every breath.
00:26:02Precisely measuring this forest's
00:26:06absorption and release of carbon dioxide.
00:26:09.
00:26:13This is another one of our sacred places. That Mr. Yu is currently
00:26:16studying the photosynthesis of plant leaves. Then, through this machine,
00:26:20we can measure its photosynthesis rate.
00:26:22.
00:26:25The rate of photosynthesis does not mean that this single leaf can represent the entire tree.
00:26:28. Its photosynthetic rate is very high, but
00:27:03the research team of the South China Botanical Garden of the Chinese Academy of Sciences, after 25 years of continuous
00:27:06monitoring, found that as a mature forest
00:27:10with a protection history of more than 400 years, the monsoon evergreen broadleaf forest
00:27:13in Lake Mountain still has a strong
00:27:17carbon sequestration function.
00:27:20.
00:27:22In 2006, this discovery was published in the internationally renowned
00:27:26academic journal Science.
00:27:28.
00:29:03In the depths of Waktu Mountain,
00:29:15the seeds of science were quietly planted in the hearts of children.
00:29:18It also keeps the story of ecological protection alive
00:29:22and well.
00:29:23.
00:29:27People live up to green mountains, and green mountains live up to people.
00:29:30.
00:29:33Dinghu Mountain, with hundreds of millions of years of profound history, preserves
00:29:37the memory of time, and carries the joy of the future.
00:30:02.