Qiandongnan Prefecture has a total area of 30,337 square kilometers, with a distance of 220 kilometers from east to west and a span of 240 kilometers from north to south. The terrain is high in the west and low in the east, and it is sloping from west to north, east and south. The highest altitude is 2178m, and the lowest altitude is137m. Known as "nine mountains, half water and half fields".
The territory is criss-crossed with ravines and mountains, and the original ecology is well preserved. There are 29 virgin forests, virgin vegetation protection areas and nature reserves, among which Leigongshan Nature Reserve is a national nature reserve.
Extended data:
I. Geology and landform
Qiandongnan Miao and Dong Autonomous Prefecture is located in the transition zone from Yunnan-Guizhou Plateau to Guixiang hilly basin. According to stratum rocks and geological external forces, the territory can be divided into karst landform area and denudation and erosion landform area. The northwest of Zhenyuan-Kaili line belongs to karst landform area, and the common landform forms are peak cluster, peak forest, stone forest, karst cave, karst depression, Tianshengqiao and underground river.
The southeast of Zhenyuan-Kaili line belongs to the denudation and erosion landform area, mainly composed of clastic rocks. The mountain is large and deeply cut, often forming a ridge. The general topography of the state is high in the north, west and south, and low in the east.
The Leigong Mountain area in the middle and the Moon Mountain in the south are located in the middle mountain zone, with hills and low mountains in the west and northwest, and low mountains, hills and basins in the east and southeast. Most areas are between 500- 1000 meters above sea level. The highest point is Huangyang Mountain, the main peak of Leigong Mountain, with an altitude of 2 178.8 meters, and the lowest point is Shuikou River in Langjing Village, Diping Township, Liping County, with an altitude of 137 meters.
The main peaks are Leigong Mountain, Lengzhu Mountain, Nandaopo, Foding Mountain, Ding Jiao Mountain, Luxiang Mountain, Dragon Head Rock, Laoshan Mountain, Qingshan Mountain, Niu Jiao Mountain, Tianziling Mountain, Gaoyue Mountain, Maobiling Mountain, Moon Mountain and Kongming Mountain.
Second, climate.
Qiandongnan Miao and Dong Autonomous Prefecture belongs to the subtropical monsoon humid climate zone, which has the characteristics of no severe cold in winter, no intense heat in summer and the same season of rain and heat. The annual average temperature is14-18 degrees Celsius. The average temperature in Leng Yue (65438+1October) is 5-8 degrees Celsius; The average temperature in the hottest month (July) is 24-28 degrees Celsius. Due to the different geographical location and topography, the temperature varies from place to place.
The general trend is that the temperature in the south is higher than that in the north and that in the east is higher than that in the west. The annual sunshine hours in China are 1068- 1296 hours, the frost-free period is 270-330 days, the rainfall is 1000- 1500mm, and the relative humidity is 78-84%.
Baidu Encyclopedia-Qiandongnan Miao and Dong Autonomous Prefecture