The main reason for feeling cold when walking on Luding Bridge is that

Luding Bridge is a famous ancient stone arch bridge, located in Luding County, Ganzi Tibetan Autonomous Prefecture, Sichuan Province, and also a national key cultural relics protection unit. Many people will feel cold when crossing the Luding Bridge, mainly for the following reasons:

1. Alpine climate impact: Luding Bridge is located in a high-altitude mountainous area, with a transition from subtropical zone to cold temperate zone, which is cold and dry all year round. Even in summer, the temperature will not be very high, and the bridge deck is wide, so walking on the bridge will inevitably encounter wind and rain.

2. Deck material: Luding Bridge was built in the middle of Ming Dynasty, and the bridge is made of stone. This kind of stone is hard, which makes the bridge deck cold and easy to catch cold when walking. In addition, in winter, the bridge deck will be colder due to snowfall and freezing.

3. External environmental factors: where the bridge passes, the vegetation on both sides is lush, the leaves are sparse and the air is humid. When walking sideways, you can feel the smell of water vapor and evaporated vegetation. On sunny days, direct sunlight on the bridge deck can raise the temperature, but the strong light radiation generated by reflection often makes pedestrians feel more dazzling.

To sum up, the climatic environment and deck materials of Luding Bridge are the main reasons for feeling cold during walking. Therefore, it is suggested that when walking on the bridge deck, wear warm and comfortable clothes, shelter from the wind and rain, and rationally use natural resources such as sunlight to increase body temperature.