China's four major stove cities.

The four major cities in China are: Chongqing, Changsha, Wuhan and Nanchang.

1, Chongqing: It is a big city in the southwest of China, with high temperature and humidity in summer, so it is called the mountain city stove. Chongqing is a municipality directly under the central government, a national central city, and a megacity for the people of China and the central and western regions. It is also the logistics center of economy, finance, science and technology, shipping and commerce in the upper reaches of the Yangtze River.

2. Changsha: When the prevailing southerly wind passes through Nanling Mountains in summer, the foehn effect will strengthen the high temperature and heat in Changsha, Hunan Province in summer. Coupled with the acceleration of urbanization, dense urban buildings and increased automobile exhaust emissions, Changsha has stored more heat, leading to an increase in temperature.

3. Wuhan: There are many rivers and lakes in Wuhan, a lot of water vapor evaporates, and the whole city is covered with hot air, which slows down the radiation speed of geothermal energy into the air. Then there is the influence of cloud cover in the sky. After the upward long-wave radiation meets the clouds, part of it is reflected downward to the surface, which further heats the atmosphere, which is not conducive to the radiation cooling at night.

4. Nanchang: Mainly due to the terrain. Surrounded by mountains on three sides, Jinggangshan in the west, Wuyishan in the east and Nanling in the south. The subtropical monsoon (southeast wind) that brings us coolness is repelled by these mountains. Without the wind, hot air will gather slowly and will not disperse for a long time. Secondly, because there is no wind, the hot air cannot be dispersed, and the humidity in the air is too high.

Measures to be taken by cities in the face of high temperature weather

1. Strengthen urban planning, choose a reasonable urban structure model, and make overall arrangements for factory areas and residential areas; The surface of urban buildings can be painted white or replaced with light-colored materials to reduce the absorption of solar radiation; Planting flowers and trees on roadsides, gardens and roofs, especially in urban heat island areas, should strengthen greening and improve urban microclimate by absorbing heat from plants.

2. It is also necessary to centrally control the dispersed heat sources in urban areas, improve the utilization rate of industrial heat sources and energy sources, reduce heat loss and release, and strive to reduce greenhouse gas emissions and slow down the trend of global warming.

3. For the public, the most important thing is to minimize the chances of outdoor activities after the meteorological department issues a high temperature warning, and take corresponding heatstroke prevention and cooling measures to avoid possible injuries caused by high temperature and hot weather.

The above contents refer to Baidu Encyclopedia-Four Fireplaces.