Chinanews.com, Lhasa, August 7th (Reporter Sun Zifa) From the first scientific examination site, the wrong sampling was "open to victory" to the successful measurement of "body temperature" for Bangongcuo (Bangong Lake), and from the twists and turns to complete the wrong scientific expedition. , The topsoil sampling in the Zigetangcuo watershed ended successfully...

  China's second comprehensive scientific investigation and study on the Qinghai-Tibet Plateau (Second Qinghai-Tibetan scientific expedition) The scientific exped A large number of high-quality lake cores, sediments, topsoil samples and other fruitful results were harvested in the process of "wrong and wrong", which will provide important scientific data for the study and reconstruction of the ancient human activity environment on the Qinghai-Tibet Plateau.

The scientific expedition team took samples on the shore of Zigetangcuo Lake.

Photo by China News Agency reporter Sun Zifa

 Scientific research work: regrets, more gains

  Focusing on the sampling of plateau lakes, the scientific expedition team set off from Lhasa in mid-July to the Ngari area and the hinterland of the Qinghai-Tibet Plateau. They traveled more than 5,000 kilometers on the plateau with an altitude of more than 4,000 meters, and completed Langcuo, Gongzhucuo, and Gongzhucuo in more than 20 days. Jieze Chaka, Longjue Co, Lubu Co, Dare Co, Laguo Co, Anggu Co, Zharinan Mu Co, Daze Co, Co E, Bam Co, Zigetang Co, etc. more than 10 Investigation mission of representative plateau lakes.

There are many tents on the banks of Zigetangco in Amdo County, Tibet, and the tourism industry is developing well.

Photo by China News Agency reporter Sun Zifa

  During the implementation of this scientific expedition task, it is inevitable that some regrets are inevitable. One is that some plateau lakes are affected by hydrological changes such as water level and current. The emergency mission left the team midway and returned to Beijing. Another 4 team members were unwell during the Zhazhinamcu inspection and were forced to leave the team and return to Lhasa to recuperate in the latter part of the scientific expedition.

  However, these regrets are only small episodes. The scientific research operations have brought more gains, including the collection of bottom lake cores, sediments and surface soil samples of different plateau lakes at different depths, as well as accurate measurements. Plateau lakes such as Pangong Co have "body temperature", Dazecuo, which conquered high winds and waves, and Bamu Co, the plateau "Warrior Lake".

On the way back from the wrong sampling in Zigetang, the expedition team saw off the plateau through wind and rain.

Photo by China News Agency reporter Sun Zifa

  "The key word that has the deepest feeling in this field surgery examination is'harvest.'" Ji Kejia, a scientific expedition team member who went out into the field in Tibet for the fifth consecutive year and a doctoral student at the Institute of Tibetan Plateau Research of the Chinese Academy of Sciences (Tibetan Plateau Institute of the Chinese Academy of Sciences), concluded. One is to harvest samples.

Sampling is one of the most important aspects of field work, and it is also one of the most important processes for conducting scientific research.

This scientific expedition achieved expected results with the efforts of the team, laying a good foundation for follow-up research work.

  The second is to harvest friendship.

The 18 members of the scientific expedition team gathered together from the north to the south. During the 5,000-kilometer plateau, they ate, lived and worked together, shared joys and sorrows, helped each other, learned from each other, and forged a deep friendship.

  The third is to harvest and grow.

The expedition took a long time in the field in Tibet, the distance was long, and the conditions were difficult. In the process, we also encountered sudden problems and difficulties such as instrument failure, car trapping, and big storms. Faced with problems, we were not afraid of difficulties and changed our minds. , Solve the problem, and finally complete the scientific examination work, "only we can grow."

  Dr. Xie Haichao from the Institute of Qinghai-Tibet Plateau of the Chinese Academy of Sciences, who has gained love in scientific research, said with a smile that he was "working" for the wife of a member of the research team. This was his first true scientific expedition trip on the Qinghai-Tibet Plateau. To work on the plateau, scientific ideas are important, but getting samples is the key. Otherwise, ideas are just a matter of reason."

After successfully completing this scientific expedition, the scientific expedition leader and researcher Hou Juzhi from the Qinghai-Tibet Plateau Institute of the Chinese Academy of Sciences took a photo on the shore of Zigetangcuo Lake.

Photo by China News Agency reporter Sun Zifa

  What impressed Xie Haichao most was the thrilling process of placing a sediment trap in the center of Dazecuo Lake.

He said that after several attempts to walk through the wind and waves to the predetermined location, the fear in the heart gradually became calmer, and finally became a little excited. After understanding the laws of nature, we can defeat it. This sense of accomplishment is unprecedented.

"This scientific expedition made me deeply feel the insignificance of human beings in front of the plateau, but it also inspired me to further understand and study the fighting spirit of the plateau in the past and present."

  Ma Dewen, a member of the scientific expedition and a master's degree student at Lanzhou University, said that on the basis of his previous experience in Hoh Xil and Yunnan Field Surgery Exams, he has become comfortable with various equipment applications during the expedition, and he has become more accustomed to field life.

He believes that in the process of scientific examination work, it is naturally important to assist the team to successfully complete the scientific examination task, but more importantly, the understanding of the team's meaning and interest in natural science research in this process are more important.

"I believe that for a long time to come, this experience will be my precious treasure."

The scientific expedition team members took a group photo on the shore of Jieze Chaka Lake.

Photo by China News Agency reporter Sun Zifa

Scientific examination process: very hard and happy

  Squeezing tents, playing on the floor, washing your feet with paper towels, eating instant noodles on the roadside, and getting wet on the boat... In the eyes of the scientific expedition team members, the experience of these 20-day highland field surgery examinations was very hard. , And very happy.

  "One Belt and One Road" International Alliance of Scientific Organizations (ANSO) Secretariat Project Specialist, Chinese Academy of Sciences Institute of Tibetan Plateau Research Ph.D. student Wang Zhuo, Chinese Academy of Sciences Institute of Qinghai-Tibet Plateau Institute Ph. "Golden Flower", they have a deep understanding of the pain and joy in the scientific examination process.

  Wang Zhuo believes that field work is always hard work, especially for girls, requiring stronger perseverance and determination to endure hardships.

  Gao Xiaoxue, who participated in the field surgery examination for plateau lakes for the first time, said to herself that she "has lost 5 catties and got a lot of tan."

She said that for the first time on an inflatable speedboat, she felt a little nervous as she swayed from side to side with the white-headed waves of the lake. She kept holding the rope tightly with her hands and kept it steady. She knew that there was a certain risk in the scientific expedition process.

  "Ye Kan" is the nickname Yuan Kan received in the scientific expedition team. She said that the scientific expedition team possesses a strong team spirit. During the entire scientific expedition process, everyone helps each other and cooperates with each other. Realized self-worth.

"We also have a colorful camping time, cooking together, talking together, watching the stars together, this kind of days away from the hustle and bustle is extremely rare, and we all enjoy it."

  "The field work on the Qinghai-Tibet Plateau is very hard, and plateau lake research is not something that can be done alone. It requires everyone to work together. Fieldwork is the best way to cultivate team spirit." said Sun Zhe, a member of the scientific expedition team and a PhD from the Institute of Qinghai-Tibet Plateau of the Chinese Academy of Sciences. , Seeing the new junior and younger brothers and sisters who joined the scientific expedition team be at a loss by the lake, just like seeing how they looked when they were out in the field for the first time that year, "What I can do is to help them understand the field work as much as possible and adapt to the rhythm of the field. Pass the experience to them and help them quickly grow into the backbone of the team."

  Zang Tonggang, the youngest member of the scientific expedition team, was the youngest member of the scientific expedition team. He has just been admitted to the Qinghai-Tibet Plateau Institute of the Chinese Academy of Sciences this year. He has not yet entered the journal. Fortunately, he was summoned to the expedition team by his supervisor and researcher Hou Juzhi from the Qinghai-Tibet Plateau Institute of the Chinese Academy of Sciences in the summer. Experience and smelt.

He said that during the scientific expedition mission of Lake Cuoe, he had the opportunity to take the first gravity drill sample in his life on the lake drilling platform. Although after two days, he was covered with mud and sore, and his face was tanned in two layers. But there is a sense of accomplishment, "I finally feel that I am one of you, and one day I will become as capable as the seniors."

  He Yue, an associate professor of Hebei University of Geosciences who participated in the Qinghai-Tibet scientific expedition again for the first time in 5 years, joked that he is a "twisted meat" in the scientific expedition team. He said that the biggest emotion of this expedition is the huge development and changes in Tibet and the research team of the scientific expedition team. The strongest growth, the deepest feeling is the inheritance of the Qinghai-Tibet scientific research spirit.

  He Yue said that the Qinghai-Tibet Plateau lacks oxygen and has limited material conditions. It is this lack of external material that can inspire the tenacity, selflessness, fearlessness, and hardship of every member of the scientific research team.

"As a university teacher, I am obligated to preserve the fire of the Qinghai-Tibet scientific examination spirit, bring it back to campus, and promote it, so as to encourage more students to actively participate in the construction of a national science and technology power."

Future goal: lay the foundation for the establishment of the scientific theory of the earth system

  The second Qinghai-Tibet scientific expedition "history of human activities and its impact" team leader and researcher Hou Juzhi from the Qinghai-Tibet Plateau Institute of the Chinese Academy of Sciences won the National Natural Science Foundation of China Outstanding Youth Project in 2020, and his work is particularly low-key.

His Ph.D. advisor is the winner of the National Highest Science and Technology Award and Academician Liu Dongsheng, the "Father of Loess", but he never took the initiative to mention it, and laughed when others asked, "We are far from meeting Mr. Liu's expectations."

In addition, Hou Juzhi gave people a serious first impression and did not smile, but after a period of contact, he found that he was not only amiable, but also very humorous, and he also became a fusion with the team members and students in the scientific examination homework.

  Zang Tonggang was particularly amazed that Mr. Hou, like the other expedition team members and seniors, was wearing jumpsuits for expedition preparations, “actually he would sit on the ground and screw screws, move goods, load trucks, and talk to everyone on the platform. Pull the heavy hammer together".

  During the scientific expedition, Hou Juzhi has always been the backbone of the team: this time Daze wrongly placed the sediment trap in the expedition, and encountered danger due to strong wind and waves. He walked about 3 kilometers from the camp along the sandy shore of the lake to the rescue and drove him personally. The ship commanded, and finally successfully completed the task; when he led the team to drill and sample wrongly in the "Warrior Lake" Bamu, there was a violent wind and waves on the lake. He immediately suspended operations and steered the inflatable speedboat to the nearest shore to ensure the safety of personnel and equipment.

  Hou Juzhi said that by the end of the surface soil sampling on the shore of Zigetang Lake on August 5, the scientific expedition team had completed all the scientific expedition tasks. This expedition has inspected more than a dozen typical plateau lakes, focusing on the collection of 3 lakes. The oldest sediment samples are estimated to be 30,000 to 40,000 years old. These samples will provide basic data for reconstructing the environmental background of human activities in the prehistoric and historical periods of the Qinghai-Tibet Plateau.

  He emphasized that the Qinghai-Tibet scientific expedition is a long-term and continuous basic research work. From 2010 to the present, the research team has been conducting inspections on the Qinghai-Tibet Plateau every year and insisting on green scientific expeditions. The Qinghai-Tibet scientific expedition will continue every year in the future. The team mainly uses lake sediments to study environmental changes on the Qinghai-Tibet Plateau. The short-term goal is to find out the “family status” of the Qinghai-Tibet Plateau lakes. The long-term goal is to lay a foundation for the establishment of theories of earth system science and contribute to China's scientific and technological self-reliance and development.

  Hou Juzhi revealed that after the scientific expedition team returned to Lhasa, the team members would sort and package the collected precious samples and express them to the Beijing laboratory for follow-up research. At the same time, they would deep clean and organize the scientific expedition equipment operating in the plateau saltwater lake. , In preparation for the next Qinghai-Tibet scientific expedition.

  "How do you see a rainbow without going through wind and rain?" On the evening of August 5, the scientific expedition team from Tibet's Amdo County, at an altitude of 4561 meters, completed sampling on the way back. After a gust of wind and rain, a brilliant rainbow appeared on the plateau. , The scientific expedition team passed through the Rainbow Gate.

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