physiognomy
Qianxinan Buyi and Miao Autonomous Prefecture belongs to the north and south Panjiang River basin of the the Pearl River water system, which is a typical mountain area with low latitude and high altitude. The entire terrain is high in the west and low in the east, high in the north and low in the south. The highest point is at the peak of Qishe and Pengzha Plateau in Xingyi City, with an altitude of 2207.2 meters; The lowest point is at the mouth of the Daluo River by the Hongshui River in Wangmo County, with an altitude of 275 meters and a height difference of 1932.2 meters. The altitude is mostly between 1000 and 2000 meters. The terrain within the state is undulating and the landforms are complex, which can be divided into five different landform zones, namely the low mountain erosion mountain canyon zone; Karst plateau trough dam area; Karst erosion plateau area; Karst erosion mountain area; Erosion of mountainous and valley areas.
climate
The climate of Qiannan Buyi and Miao Autonomous Prefecture belongs to the subtropical monsoon humid climate zone. The average annual temperature is 13.8~19.4 ℃, with an average temperature of 7.1 ℃ in January and an extreme minimum temperature of -8.9 ℃ (which occurred in Anlong on February 14, 1968); The average temperature in July is 23 ℃, with an extreme maximum temperature of 40.2 ℃ (which occurred in Ceheng on April 11, 2006).
The average frost free period in Qiannan Buyi and Miao Autonomous Prefecture is 317 days per year, with the longest being 365 days and the shortest being 219 days. The average annual sunshine hours is 1589.1 hours. The annual average precipitation is 1352.8 millimeters, with an average of 189 rainy days per year, ranging from a maximum of 216 days in 1981 to a minimum of 137 days in 2009. The maximum annual rainfall in extreme years was 2047.8 millimeters (in Qinglong County in 1965), and the minimum annual rainfall was 737.1 millimeters (in Xingren County in 1989). Rainfall is concentrated from May to September each year, with the highest amount in June. Abundant heat, abundant rainfall, rain and heat in the same season, long frost free period, warm and humid all year round