Introduction to beautiful Yunnan

Yunnan, referred to as Yunnan (Yunnan), the provincial capital Kunming, is located on the border of southwest China. The Tropic of Cancer traverses the southern part of Yunnan Province. It is a low-latitude inland area. It is adjacent to Guizhou and Guangxi in the east and Sichuan in the north. It is close to Tibet in the northwest, bordering Myanmar in the west, and Laos and Vietnam in the south. Yunnan has 25 border counties that border Myanmar, Laos, and Vietnam respectively. The national border is 4,060 kilometers long. It is China’s window to Southeast Asia and South Asia. and portal.

Yunnan is one of the important birthplaces of human civilization. The Yuanmou Man, who lived 1.7 million years ago, was the earliest human discovered in China and Asia. During the Warring States Period, this was the place where the Dian tribe lived. Yunnan means the South of Caiyun, Colorful Yunnan. Another saying is that it got its name because it is located "south of Yunling".

Yunnan has a total land area of ??394,100 square kilometers, accounting for 4.1% of the country’s total land area, ranking 8th in the country, and with a total population of 47.705 million (2016). It is the province with the most ethnic groups in China. It has jurisdiction over 8 cities and 8 ethnic minority autonomous prefectures.

Extended information:

Geographical environment of Yunnan:

1 location

Yunnan Province has a total area of ??approximately 390,000 square kilometers, accounting for the largest area in the country. With an area of ??4.11%, it ranks 8th among all provincial administrative regions in the country. The Tropic of Cancer passes through the southern part of the province. The province is bounded by the Guangxi Zhuang Autonomous Region and Guizhou Province to the east, Sichuan Province to the north, and the Tibet Autonomous Region to the northwest. Yunnan's national border is 4,060 kilometers long and borders three countries: Myanmar to the west (the main port is Ruili), Laos to the south (the main port is Mohan), and Vietnam to the southeast (the main port is Hekou).

2 Climate

The climate of Yunnan Province has seven temperature zone climate types: northern tropical zone, southern subtropical zone, central subtropical zone, northern subtropical zone, warm temperate zone, mid-temperate zone and plateau climate zone. ?Yunnan’s climate has the characteristics of low-latitude climate, monsoon climate, and mountain climate. Its main manifestations are:

3 Regional differences and vertical changes in climate

Yunnan's latitude and altitude are related. In terms of latitude, its location is only equivalent to the geographical latitude from Leizhou Peninsula to Fujian, Jiangxi, Hunan and Guizhou. However, due to the terrain being higher in the north and lower in the south, the height difference between the north and the south is as high as 6663.6m, which greatly aggravates the problems within the province. Temperature differences caused by latitude factors. This combination of high latitude and high altitude, low latitude and low altitude is consistent, that is, the increase in latitude in the horizontal direction coincides with the increase in altitude in the vertical direction. As a result, the annual average temperature in various places, except for the Jinsha River Valley and Yuanjiang River Valley, generally increases from north to south. The average temperature is about 5 to 24°C, and the temperature difference between the north and the south is about 19°C.

Due to the influence of terrain and different weather systems, special situations often occur in the latitudinal distribution of temperature in the province, and the phenomenon of "hot in the north and cool in the south" occurs. Especially in terms of vertical distribution, because the territory is mountainous, the erosion of river beds continues to deepen, forming high mountains and deep valleys. From the valley to the top of the mountain, there are differences in climate types caused by the increase in height. Generally, the temperature decreases for every 100m the plateau rises. About 0.6℃.

Reference material: Baidu Encyclopedia-Yunnan (Provincial-level administrative region of the People's Republic of China)