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In order to prevent the risk of uncertainty and extreme impact brought by the black swan，the origin，transmutation and prospect of the black swan were studied in depth under the perspective of metaphor theory. Firstly，the conceptual integration theory was adopted to analyze the cognitive construction mechanism of the black swan risk metaphor from the aspects of historical flow and development trend，summarize the overall development trend of the black swan，and on the basis of this，divide the black swan into three important transmutation stages of founding，exploring development，and innovating and perfecting，so as to put forward the research dilemma and future outlook of the black swan under the background of digital intelligence empowerment. The results show that the risk metaphor meaning of black swan is a risk event with rarity，episodic，unexpected and unpredictable，and extremely negative impact; the development of the black swan risk metaphor will enter the stage of theoretical differentiation of quantitative fluctuation and change，and the direction of the research should be from generalized application to precise application，from single risk to composite risk，and from silo research to group research.
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| 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 |
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