How to investigate the number of black -necked cranes?

The number of black -necked cranes in my country has reached more than 17,000 black -necked cranes that are unique to my country, of which more than 95%are distributed in the Qinghai -Tibet Plateau and the Yunnan -Guizhou Plateau in my country.

At present, the wintering process of the black -necked crane has basically ended, and it has begun to move to the breeding place one after another. The scientific research department has also entered the end of the black -necked crane’s winter survey. Every winter is the best time for scientific research institutions to investigate the black -necked crane species. Because they migrate from the decentralized breeding places to a relatively concentrated wintering place, they provide favorable conditions for the overall number of statistics.

Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: During the winter, they were overwintering in the cluster. By the time of summer, they were scattered. Black -necked cranes are migrated between the breeding grounds of the Qinghai -Tibet Plateau and the Yunnan -Guizhou Plateau for life. They are mainly conducted on the wintering of these two plateau in winter. It is worth noting that a small number of black -necked crane clusters also found overwintering in Xinjiang last year.

Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: The results of the survey on the Yunnan -Guizhou Plateau in the winter are close to 6,000. There are about 11,000 in Tibet, except for the Linzhi area. There are 44 individuals in Xinjiang, with a total of more than 17,000. According to experts, black -necked cranes are basically distributed in my country. There are only a few individuals in other countries. The increase in the number of black -necked cranes is a direct manifestation of the results of my country’s protection.

Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: In 2000, the number given by the number of black -necked cranes in the world is 6,000. 20 (more) years, the growth numbers are very, very pleasing. High -tech accurate positioning statistics can be curious to be accurate to individuals. The group of black -necked cranes fly around. How does the number of them be counted? At first glance on the picture, it looks like a model assembled by the granular building blocks we are familiar with. When it is magnified, I find that there is another mystery.

This huge team with a sense of technology is actually the scene of the black -necked crane cluster taken by the drone high altitude.

Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: We hang the drone at the height of 80 to 100 meters, and then shoot the family portrait. After taking the family portrait, we use the corresponding technical methods to count the corresponding software one by one. This will soon give a relatively accurate result. Reaches a single digit. Why do I need to use high altitude shooting? How to avoid black -necked cranes in a dazzling dynamic space, neither repeat counting nor misunderstandings? Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: The application of drones has made our survey no longer look at the horizontal perspective, or from vertical observation. During the twice a year, the black -necked cranes lived between the snowfields of the mountains and the snowfields lived in freshwater wetlands in the plateau.

With extraordinary flight abilities and perception of nature, they come to the Qinghai -Tibet Plateau and the Yunnan -Guizhou Plateau throughout the year, and have habitat and breed offspring. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: It will rise up and increase its height to facilitate it to cross higher mountains. In another place where there is a lot of airflow, continue to hover. That’s all circling one by one. After a certain height, you can slide down like a slide. How do scientific researchers learn about this process? In addition to comprehensive monitoring and evaluation of wind direction and wind speeds, the scientific research team also wears satellite tracking equipment for some black -necked cranes. In the continuous transmission of data, it can not only clearly see the flight trajectory of a single individual, but also every year. In the spring and autumn season, seeing the relocation route of multiple groups of black -necked cranes and summarizing various rules from it. Researchers also monitored the Kunlun Mountains in the satellite tracking trajectory of the black -necked crane. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: Now we have the flight trajectory of the Kunlun Mountains, and the speed of flight and flying is all available. Satellite tracking can give such accurate results.

According to experts, the black -necked crane’s flying process is not the sky high. The relative distance from the ground is between 50 and 200 meters, and they are at any time to withstand the resistance of the gravity and complex airflow at any time.

The migration process of black -necked cranes twice a year is a climbing journey that requires great physical strength and may occur at any time. The number of black -necked cranes in my country has reached more than 17,000 black -necked cranes that are unique to my country, of which more than 95%are distributed in the Qinghai -Tibet Plateau and the Yunnan -Guizhou Plateau in my country. At present, the wintering process of the black -necked crane has basically ended, and it has begun to move to the breeding place one after another. The scientific research department has also entered the end of the black -necked crane’s winter survey.

Every winter is the best time for scientific research institutions to investigate the black -necked crane species. Because they migrate from the decentralized breeding places to a relatively concentrated wintering place, they provide favorable conditions for the overall number of statistics.

Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: During the winter, they were overwintering in the cluster. By the time of summer, they were scattered. Black -necked cranes are migrated between the breeding grounds of the Qinghai -Tibet Plateau and the Yunnan -Guizhou Plateau for life. They are mainly conducted on the wintering of these two plateau in winter.

It is worth noting that a small number of black -necked crane clusters also found overwintering in Xinjiang last year. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: The results of the survey on the Yunnan -Guizhou Plateau in the winter are close to 6,000. There are about 11,000 in Tibet, except for the Linzhi area. There are 44 individuals in Xinjiang, with a total of more than 17,000. According to experts, black -necked cranes are basically distributed in my country. There are only a few individuals in other countries. The increase in the number of black -necked cranes is a direct manifestation of the results of my country’s protection. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: In 2000, the number given by the number of black -necked cranes in the world is 6,000.

20 (more) years, the growth numbers are very, very pleasing. High -tech accurate positioning statistics can be curious to be accurate to individuals. The group of black -necked cranes fly around. How does the number of them be counted? At first glance on the picture, it looks like a model assembled by the granular building blocks we are familiar with. When it is magnified, I find that there is another mystery.

This huge team with a sense of technology is actually the scene of the black -necked crane cluster taken by the drone high altitude. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: We hang the drone at the height of 80 to 100 meters, and then shoot the family portrait. After taking the family portrait, we use the corresponding technical methods to count the corresponding software one by one. This will soon give a relatively accurate result. Reaches a single digit.

Why do I need to use high altitude shooting? How to avoid black -necked cranes in a dazzling dynamic space, neither repeat counting nor misunderstandings? Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: The application of drones has made our survey no longer look at the horizontal perspective, or from vertical observation. During the twice a year, the black -necked cranes lived between the snowfields of the mountains and the snowfields lived in freshwater wetlands in the plateau.

With extraordinary flight abilities and perception of nature, they come to the Qinghai -Tibet Plateau and the Yunnan -Guizhou Plateau throughout the year, and have habitat and breed offspring. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: It will rise up and increase its height to facilitate it to cross higher mountains. In another place where there is a lot of airflow, continue to hover. That’s all circling one by one. After a certain height, you can slide down like a slide. How do scientific researchers learn about this process? In addition to comprehensive monitoring and evaluation of wind direction and wind speeds, the scientific research team also wears satellite tracking equipment for some black -necked cranes. In the continuous transmission of data, it can not only clearly see the flight trajectory of a single individual, but also every year. In the spring and autumn season, seeing the relocation route of multiple groups of black -necked cranes and summarizing various rules from it. Researchers also monitored the Kunlun Mountains in the satellite tracking trajectory of the black -necked crane. Guo Yumin, a professor at the School of Ecology and Nature Conservation of Beijing Forestry University: Now we have the flight trajectory of the Kunlun Mountains, and the speed of flight and flying is all available. Satellite tracking can give such accurate results.

According to experts, the black -necked crane’s flying process is not the sky high. The relative distance from the ground is between 50 and 200 meters, and they are at any time to withstand the resistance of the gravity and complex airflow at any time. The migration process of black -necked cranes twice a year is a climbing journey that requires great physical strength and may occur at any time.