The topography and geographical location of Dushan County, Guizhou?

Geographical location

Guizhou is located on the Yunnan-Guizhou Plateau, between 103°36′~109°35′ east longitude and 24°37′~29°13′ north latitude. Hunan borders Guangxi to the south, Yunnan to the west, and Sichuan and Chongqing to the north. It is about 595 kilometers long from east to west and about 509 kilometers from north to south. The province's total land area is 176,167 square kilometers, accounting for 1.8% of the country's total area.

The landform of Guizhou belongs to the plateau and mountains in western China. The terrain is higher in the west and lower in the east. It slopes from the center to the north, east and south, with an average altitude of about 1,100 meters. The Guizhou Plateau is mostly mountainous and is known as "eight mountains, one water and one farmland". The province's landforms can be broadly divided into three basic types: plateau mountains, hills and basins, of which 92.5% are mountains and hills. There are many mountains in the territory, with many mountains and peaks stretching vertically and horizontally, with high mountains and deep valleys. There is Dalou Mountain in the north, which runs diagonally across the northern border from west to northeast. Loushan Pass, the key pass of Sichuan and Guizhou, is 1,444 meters high; the Miao Mountains lie across the central and southern parts, with the main peak Leigong Mountain being 2,178 meters high; and the Wuling Mountain in the northeast, winding from Hunan into Guizhou, with the main peak Fanjing Mountain is 2,572 meters high; Wumeng Mountain towers in the west. Jiucaiping, Zhushi Township, Hezhang County, which belongs to this mountain range, has an altitude of 2,900.6 meters, the highest point in Guizhou. The place where the Shuikou River in Diping Township, Liping County, Qiandongnan Prefecture leaves the provincial boundary, has an altitude of 147.8 meters, the lowest point in the territory. The development of karst landforms in Guizhou is very typical. The karst (exposed) area is 109,084 square kilometers, accounting for 61.9% of the province's total land area. The karst distribution range within the territory is wide, the morphological types are complete, and the geographical distribution is obvious, forming a special karst ecosystem.

Guizhou’s climate is warm and humid, belonging to a subtropical humid monsoon climate. The temperature changes little, with warm winters and cool summers, and a pleasant climate. Especially the unique climate. In 2002, the annual average temperature in Guiyang, the provincial capital, was 14.8°C, 0.3°C higher than the previous year. Across the province, the average temperature in the coldest month (January) is usually 3°C to 6°C, which is higher than other areas at the same latitude; the average temperature in the hottest month (July) is generally 22°C to 25°C, which is a typical summer Cool areas. There is more precipitation, obvious rainy season, more cloudy days and less sunshine. In 2002, among the nine cities, prefectures and prefectures, Xingyi City had the most precipitation, with 1,480 millimeters; Bijie City had the least precipitation, with 687.9 millimeters. Affected by the monsoon, precipitation is mostly concentrated in summer. The number of cloudy days in various parts of the country generally exceeds 150, and the relative humidity is above 70 all year round. Affected by atmospheric circulation and topography, Guizhou's climate is diverse. "One mountain has four seasons, and ten miles have different weather."

Guizhou has rich vegetation, with obvious subtropical nature, various types and complex flora. There are 269 families, 1,655 genera, and 6,255 species (variants) of vascular plants (excluding bryophytes) in the province. The flora has obvious advantages in tropical and subtropical geographical components. Geographical components such as pan-tropical distribution, tropical Asian distribution, and Old World tropical distribution account for a large proportion. Temperate geographical components also exist to varying degrees. In addition, there are many unique Chinese ingredients. Due to its special geographical location, Guizhou has diverse vegetation types, including China's subtropical zonal evergreen broad-leaved forests, near-tropical ravine monsoon forests and mountain monsoon forests, and cold-temperate subalpine coniferous forests. , there are also warm coniferous forests; there are both large-area secondary deciduous broad-leaved forests, and precious deciduous forests with extremely limited distribution. The spatial distribution of vegetation shows obvious transition, which makes various vegetation types overlap and become intricate in geographical distribution, and the combinations of various vegetation types become complex and diverse.

Topography characteristics

Guizhou’s landforms belong to the plateau mountains in southwest China. The terrain is higher in the west and lower in the east. It slopes from the middle to the north, east and south. The average altitude is 1100 meters above the Guizhou Longgong Karst Landform. About meters. The Guizhou Plateau is mostly mountainous and is known as "eight mountains, one water and one farmland". The province's landforms can be broadly divided into four basic types: plateaus, mountains, hills and basins, of which 92.5% are mountains and hills. There are many mountains in the territory, with many mountains stretching vertically and horizontally, with high mountains and deep valleys.

There is Dalou Mountain in the north, which runs diagonally across the northern border from west to northeast. Loushan Pass, the key pass of Sichuan and Guizhou, is 1,444 meters high; the Miao Mountains run across it in the central and southern parts, with the main peak Leigong Mountain being 2,178 meters high; and in the northeast is Wuling Mountain, which winds from Hunan into Guizhou, with the main peak Fanjing Mountain is 2,572 meters high; Wumeng Mountain towers in the west. Jiucaiping, Zhushi Township, Hezhang County, which belongs to this mountain range, has an altitude of 2,900.6 meters, the highest point in Guizhou. The place where the Shuikou River in Diping Township, Liping County, Qiandongnan Prefecture leaves the provincial boundary, has an altitude of 147.8 meters, the lowest point in the territory. The development of karst landforms in Guizhou is very typical. The karst landform covers an area of ??109,084 square kilometers, accounting for 61.9% of the province's total land area. The karst within the territory is widely distributed, with complete morphological types and obvious geographical distribution, forming a special karst ecosystem.