Yunxian County is a county under the jurisdiction of Lincang, Yunnan Province, located in the southwest of Yunnan Province, at the junction of Dali, Pu 'er and Lincang. It belongs to mountainous and semi-mountainous counties, with subtropical monsoon climate of low latitude plateau and warm temperate monsoon climate; With a total area of 3,760 square kilometers, it governs 7 towns and 5 townships.
Yunxian county is located in the south of the longitudinal valley area of Hengduan mountain system in western Yunnan, belonging to the deep valley and wide valley canyon area of Zhongshan. It was formed by the large-scale strong differential uplift of Himalayan movement in the early Quaternary Pleistocene. Most of the mountains are northwest-southeast, and the terrain is high from east to west, slightly lower in the middle, with a relative height difference of 2350 meters.
The highest point is the Great Snow Mountain at the junction of Yunxian County and Lincang County, with an altitude of 3,429 meters; The lowest point is Nanting River, the resident of CCBA in Hongcun, Xingfu Township, with an altitude of 748 meters. Due to long-term erosion and weathering, a landscape with vertical and horizontal canyons and broken terrain has been formed. The landform of the whole county can be roughly divided into three types: valley basin, middle-cut wide valley area and deep valley area.
The climate of Yunxian County:
The climate of Yunxian County is mainly influenced by the warm and humid air flow in the Indian Ocean and the southwest monsoon, which belongs to the subtropical monsoon climate of low latitude plateau and the warm temperate monsoon climate. The temperature in this area is generally mild, and the annual average temperature is between 13℃ and 2 1℃. Due to the complex terrain and great altitude difference, a remarkable three-dimensional climate has been formed. There is a saying that a mountain is divided into four seasons, and ten miles are different.
The valley area below 1300 meters above sea level belongs to the tropical climate type of South Asia; The mid-level area with an altitude of 1300- 1800 meters belongs to the subtropical climate type; The mountainous area with an altitude of 1800-2300m belongs to the tropical climate type of North Asia; The alpine mountain area above 2300 meters above sea level belongs to warm temperate climate type.
Reference to the above content: Baidu Encyclopedia-Yunxian County