In the event of public health emergencies, spreading science popularization videos can help improve the public’s rational cognition and reduce social panic. However, there are few pieces of literature on the spread of knowledge-oriented science popularization videos. Based on the theory of information acceptance and the theory of network embedding, the method of directional data collection is adopted, and the new coronary pneumonia science popularization videos on the Bilibili website from January 20, 2020 to March 1, 2020 is used as the research object. Start with the amount of video playback and video sharing, and explore the factors influencing the continued spread of science popularization videos. The research found that: network in-degree, network contribution, video playback volume, and video sharing volume all have a positive impact on the creator’s network structure embedding and network relationship embedding; video creation days, video duration, network in-degree, and network contribution all have a positive impact on science popularization videos. The diffusion effect has a positive impact; the video playback volume, sharing volume, and the creator’s network in-degree all have a positive impact on the continuous playback of science popularization videos, and the video playback volume and network in-degree have a positive impact on the continuous sharing of science popularization videos. According to the research conclusions, suggestions are put forward to improve the diffusion effect of science popularization videos.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |