Wrong, it means lake in Tibetan.

According to the latest measurements by Chinese scientists, the maximum depth is 230 meters.

Its lake area is 846 square kilometers, equivalent to two-fifths of Nam Co.

One of the key points of the Nam Co Lake Research Expedition is to explore the ancient lake shoreline of the Great Lakes on the plateau, and how ancient humans adapted to the climate and environment of the plateau.

　　Located in the heart of the Qiangtang Plateau in northern Tibet, Dangyayongcuo is more than 120 kilometers away from Nima County. The lake is 4540 meters above sea level. On the south bank of the lake is the majestic Daguo Snow Mountain.

On the north bank, there is an ancient village called Wenbunan Village.

　　So where is the lake shoreline in the ancient Dangya Yongcuo?

Wang Junbo, director of the Lhasa Department of the Institute of Qinghai-Tibet Plateau Research, Chinese Academy of Sciences:

We now see this

Dangya Yongcuo

. It is a very important lake in the Qiangtang Plateau area of ​​northern Tibet. What we can see now is the whole from far to near. , Layer by layer in this circle, are the relics left over from the high lake period before Dangriyongcuo, that is, the ancient lake shoreline.

　　Researcher Wang Junbo has been studying lakes and environmental changes on the Qinghai-Tibet Plateau for more than 20 years. Since the country launched the second Qinghai-Tibet scientific expedition in 2017, he and his colleagues have studied the climate and environmental evolution of the Great Lakes of the Plateau.

　　In the plateau lake areas of Dangyayongcuo, Selincuo, Namco, the scientific research team carried out lake depth measurement, water quality monitoring, lake level and water volume changes, and paleoenvironmental changes at different time scales. In this area, a 10.5-meter-long lacustrine sedimentary core was collected, reconstructing the history of environmental changes in the area for 17,000 years.

Wang Junbo, director of the Lhasa Department of the Institute of Tibetan Plateau Research, Chinese Academy of Sciences:

About 8,000 years ago, the lake was the highest, with a height of 180 meters.

Starting more than 4,000 years ago, it slowly descended to the current position of the lake, which is about 4540 meters above sea level.

　　Wang Junbo said that according to the research results of lake level changes, more than 4,000 years ago, the lake level of Dangyayong Co was about 100m above the lake surface, and the current location of Wenbunan Village is below the lake surface.

However, there are now 1,086 people in Wenbunan Village, which is a jewel in the tourism of the Great Circle of Northern Tibet.

Ancient villages, ancient houses, ancient fields, ancient Zongbao ruins, etc., have rich cultural and historical value.

　　By the lakeside, 59-year-old Tsering Dundup, dressed in traditional costumes, flung up his long white sleeves, and danced the peacock dance inherited from his ancestors.

　　He is the fourth-generation non-genetic inheritor of the peacock dance in Wenbunan Village, and is also the village's cultural name card.

The fourth generation non-genetic inheritor of the Peacock Dance in Wenbunan Village, Tsering Tunzhu:

I have been dancing and teaching "Peacock Dance" from the age of 13 to 59 this year. Now the children dance very well. I think "Peacock Dance" "Dance" has been well inherited. I teach "peacock dance" to local elementary school students and often go to other schools to teach "peacock dance" in other places.

　　In the new semester of this year, on the playground of Wenbunan Village Primary School, children danced a cheerful peacock dance. As an intangible cultural heritage at the autonomous region level, the peacock dance has become a school broadcast exercise in northern Tibet.

　　Due to the unique climate environment, Wenbunan Village has a long history of barley planting. Now 300 mu of barley land is distributed on the lakeshore platform with the highest altitude of 4600 meters. This is also one of the highest areas for highland barley cultivation in Tibet.

Then, about 8000 years ago, why did the water level of the large plateau lakes such as Dangyayongcuo show a downward trend on a large time scale, thus providing people with space for living in the plateau lakeside area?

Wang Junbo, director of the Lhasa Department of the Institute of Qinghai-Tibet Plateau Research, Chinese Academy of Sciences: The

monsoon has been weakening since eight or nine millennia, which has caused the water vapor brought by the monsoon to weaken, and then the precipitation weakened, so the supply has been reduced.

Therefore, its water level has been in a continuous and relatively gentle declining process, and it has been declining until now.

　　However, experts say that scientific data in the past two to three decades show that the Great Lake in northern Tibet represented by Selincuo has generally seen a trend of larger lakes, rising waters, and fading waters. This is due to warm and humid climate changes that have led to precipitation. Increase.

However, different regions and types of lakes on the Qinghai-Tibet Plateau have different sources of supply and different control factors leading to lake level changes.

Li Yongxian, vice president of the Chinese Rock Painting Society and professor of the Institute of Tibetan Studies of Sichuan University:

The relationship between the height of the lake and the living height of humans in the late Paleolithic period in the entire Great Lakes area is very interesting. A subject.

　　(Headquarters reporter Chen Qin Duoji Renqingyi Xibian Bayangchao)