Experts talk about the Qinghai -Tibet Plateau: Modern biological diversity evolution hub Human five -stage spread and settlement

In early August, China's second Qinghai -Tibetan examination of the "History of Human Activities and its influence" team conducted a small scientific investigation on the Gebusu site. Photo by China News Agency reporter Sun Zifa

Seventh Seventh Session of the Tibetan Science and Tibet Science Examination Series — a special exchange meeting of "Geological Evolution and Human Adaptation" was held on September 8th at Peking University on September 8. Academician Yao Tandong, the captain of the Second Qinghai -Tibet Science Examination Team, chaired the meeting. At the meeting, experts pointed out that the Qinghai -Tibet Plateau is an important evolution hub for modern biodiversity, and humans spread to the Qinghai -Tibet Plateau to settle in five stages.

Academician Chen Figu, director of the Qinghai -Tibet Plateau Institute of the Chinese Academy of Sciences, said that through investigation and excavation of archeological sites of the Qinghai -Tibet Plateau and the study of plateau lake deposits and combined with historical literature analysis, it was found that humans spread to the Qinghai -Tibet Plateau to settle. The ancient Homo sapiens have adapted to the plateau in the late period of the world; the second is that modern Homo sapiens open an exploration of the hinterland of the plateau before 40,000 to 30,000; The crowd spread to the plateau in a large range; the fourth is that the Agricultural Agricultural population entered the low altitude valley area of ​​the east of the plateau 5200 years ago and started to settle in the area above 3,000 meters above the altitude of the east of the plateau before 4800; The development of the pastoral economy helps the population to settle on a large -scale high -altitude area.

In early August, Academician Chen Figu, chief scientist of the "Human Activity Human Activity and its influence" team in China, was taught during the examination of the Highland Department. Photo by China News Agency reporter Sun Zifa

Professor Song Changqing, Minister of Geographical Sciences of Beijing Normal University, said that through the analysis of the ethnic group space of the Qinghai -Tibet Plateau in the past two thousand years, as well as the analysis of important events such as conflict with the eastern region of China, the Geographic behavior and temperature of the Qinghai -Tibet Plateau and the eastern ethnic groups in the historical period were discussed The internal connection of the change shows that during the warmth period, the Qinghai -Tibet ethnic group forms a more stable and powerful forces inside the plateau; during the temperature fluctuations, some ethnic groups will move out of the Qinghai -Tibet region; during the cold period, the Qinghai -Tibet groups that are mainly from the East will meet the Eastern and Tibetan ethnic groups. Establishing a separatist regime on the edge of the Qinghai -Tibet Plateau.

Researchers Deng Tao, director of the Institute of Ancient vertebrates and Ancient Human Research Institute of the Chinese Academy of Sciences, pointed out that according to the latest fossil evidence and research results obtained from Qinghai -Tibet Sciences, many mammals, fish, birds and plants originated from the Qinghai -Tibet Plateau during different geological periods. And spreading around the world, the Qinghai -Tibet Plateau has become an important evolution hub for modern biodiversity. The strong dragon up of the Qinghai -Tibet Plateau in the new generation deeply affects the climate environment and ecosystem of the plateau and the edge of the edge of the plateau, and has a strong driver to biological evolution. Ancient human beings have many "shuttle diffusion" incidents between Asia, Europe, and Africa, indicating that Asia is the "exchange" of human evolution, and then it can reveal how the Qinghai -Tibet Plateau has influenced the evolution of ancient humans in Asia through spectrum research. Essence

The research of Professor Zhang Jinjiang of the School of Earth and Space Sciences at Peking University focuses on the northeast edge of the "Alkin-Qilian-Hexi Corridor", revealing the role of structural effects, and the interaction of environmental evolution of the Qinghai-Tibet Plateau and the environmental evolution. He said that around the key structure sectors such as the Dunhuang Basin, the Architecture Belt and Beishan Structure Belt, and the Sanwei Mountain Fracture, the distribution map of the fourth period of the ancient lake in Dunhuang Basin has been rebuilt through the characteristics of sedimentary characteristics and the study of the sedimentary age. Explain the coordination of the construction activities of the Qinghai -Tibet Plateau and the evolution of ancient lakes, and reveal the desertification process of the northeast of the Qinghai -Tibet Plateau in the late New Tibetan plateau.

The Strategic Planning Department of the Ministry of Science and Technology of China stated that in the five years since the implementation of the second Qinghai -Tibet Science and Tibetan examination, adhered to joint research on humanities and natural sciences, attached importance to the protection and inheritance of cultural heritage, and in -depth impact of the geographical environment on the formation of historical and culture. The evolution of the "third pole" of the earth, the "roof ridge of the world" form a evolution process, understand the history of the evolution of high -cold civilization, and interpret the pattern of diversified evolution of the Chinese nation, etc., all have important and far -reaching influence.

In addition, during the implementation of the second Qinghai -Tibet Science and Tibetan scientific examination tasks, universities such as Peking University, Beijing Normal University, etc., as an important component of scientific research teams, also gave full play to the advantages of disciplines and talents, took the lead and participated in major research projects, and obtained a series of breakthroughs. And achievement.

(Source: China News Network reporter Sun Zi Fa)

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