Cross-border trips among bordered cities are becoming more and more common on a global scale. These trips are frequent and varied throughout the Guangdong-Hong Kong-Macao Greater Bay Area. Upgrading the transport facilities and services in the Greater Bay Area to meet the increasing demand for cross-border low-carbon transport is a key measure to promote the region's integrated development under China’s dual carbon goals. In this study, by reviewing relevant researches around the world, immigration and cross-border migration, and cross-border daily travel were discussed. Based on current research gaps and development potential, it was suggested that attention should be paid to micro-research on daily cross-border travel behaviors in the Greater Bay Area, to promote green travel habits and provide a basis for improving low-carbon transport facilities and policies. Daily cross-border traveling, an inevitable result of the development of cross-border regional integration, can promote more-dimensional and deeper integration process under the dural carbon goals.
| 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 |