On June 20th, the tadpole stave online live broadcast activity with the theme of "Fragrant Mountain Wonderful Night" sponsored by the Information Center of Beijing Association for Science and Technology and hosted by the Tadpole Stave Website was successfully completed in Beijing Xiangshan Park, attracting more than 200,000 viewers. In more than an hour of live broadcast time, Hu Kepeng, director of the operation and management department of the Beijing Xiangshan Park Management Office, He Yue, lecturer of natural history, and Wu Qi, lecturer of natural science popularization, "visited" Xiangshan Park at night, bringing a vivid and wonderful natural science popularization class to the audience.
Founded in the 26th year of Jin Dading, Xiangshan Park has a history of 900 years, with many cultural relics and monuments, and is a royal garden with mountain and forest characteristics. Xiangshan Park has a variety of trees, forest coverage rate of up to 96%, only ancient trees and famous trees have more than 5800 trees, accounting for 1/4 of beijing urban area, is one of the highest negative oxygen ion areas in Beijing, with a unique "mountains, famous springs, ancient trees, red leaves" garden connotation, is a summer resort, natural oxygen bar.
At 8:00 p.m., as night fell, the live broadcast officially began from the Qinzheng Hall at the South Gate, and Hu Kepeng first made a brief introduction to Xiangshan Park: compared with downtown Beijing, Xiangshan Park has a higher altitude, a beautiful environment, and a pleasant climate; during the Yuan, Ming, and Qing Dynasties, the royal family built a palace in Xiangshan, especially in the Qing Dynasty, and every summer and autumn, the emperor had to go here to hunt and cool down. In particular, the Qianlong Emperor was particularly fond of Xiangshan, and the emperor gave the name Jingyi Garden, and in the famous "Three Mountains and Five Gardens" in western Beijing, Xiangshan Park accounted for one of the mountains (Xiangshan) and one garden (Jingyi Garden).
Along the mountain road, the Xiangshan night exploration activities officially began, in the mountain woods, from time to time to see the "white cigarette butts" hanging on the branches, in fact, this is a new means of preventing diseases and insect pests in the mountain forest; He Yue said that these white tubes are placed in ladybirds or Guan's swollen leg bees, which can effectively control pests such as tianniu and night beetle. "As the saying goes, medicine is three points of poison, and replacing pesticides with biological methods is good for the natural ecology, which Xiangshan Park has done very well."
In the mountain spring near Jingcui Lake, the Chinese giant toad and the Oriental Bell Toad appear in the water at the same time; Wu Qi said that the Oriental Bell Toad is not a native species of Beijing, it is the Chinese amphibian Giant Academician Liu Chengzhao introduced to Beijing from Qingdao in the 1920s, and now decades have passed, they only inhabit Beijing Xiangshan, which also reflects the good ecological environment of Xiangshan from the side. Of course, in order to adapt to the environment of Beijing, after decades of evolution, compared with the original habitat, the oriental bell toad has turned its back black and its body has undergone some changes.
The snail commonly known as the "buffalo" also attracted the attention of three night detectives, according to reports, this snail common in Beijing is actually a unique species in the Beijing area, the scientific name is called the Beijing Stripe Snail, and the distribution range is limited to Beijing. He Yue said that the nursery rhyme "buffalo do not eat roast lamb" is not an artistic creation, but a rigorous science: every year when the temperature rises and the temperature rises and the hot and dry months, the snails will spit out mucus, seal the shell mouth, and enter the stage of "not eating or drinking".
"How are toads and frog tadpoles distinguished?" "What kind of animal is a worm?" "What kind of leaves do fragrant mountain autumn leaves refer to?" "Is Malu poisonous?" Throughout the night visit, the three teachers chatted while walking, and also actively interacted with the audience and answered questions. The online audience ended the online science popularization activity in the middle of the unfinished business.
Since the beginning of this year, the Tadpole Stave "Tadpole Pu" series of activities has been changed to online live broadcasting, and the night exploration activity in Xiangshan Park is the fourth mobile live broadcast, and it is also the first time that Tadpole Stave has tried to broadcast online at night. In the future, the "Tadpole Pu" series of activities will hold more colorful online activities for science popularization education, seeking the transformation of traditional science popularization "one-way launch" to "multi-directional expansion", not only in the popularization of scientific knowledge, but also in scientific practice, and finally to achieve the double upgrade of popular science concept and science popularization practice.
Author: Zhao Tianyu