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This paper provides a comprehensive overview of Chinese mainland's urban rail transit development in 2023. By the end of the year, 28 provinces and 59 cities had 338 urban rail transit lines in operation, spanning 11,232.65 km. Subway lines made up 76.10% of this length, with 8,547.67 km, followed by fully automatic operation (FAO) lines with 9.37% and 1,052.43 km. The network expanded by 884.55 km in 2023, with 53 new lines (or sections) opening, including 539.50 km of subway lines and 252.79 km of FAO lines. The new lines involved 7 different system types and 30 cities, 3 of which inaugurated their first urban rail transit systems. In 2023, Chinese mainland's urban rail transit network also set a new record of annual passenger volume, surpassing 80 million passenger trips per day on average.
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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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