What is the topography of Guangxi?

Guangxi is located in the southeast edge of Yunnan-Guizhou Plateau, the second step of the national terrain, west of Guangdong and Guangxi hills, and south of Beibu Gulf. The whole terrain inclines from northwest to southeast, with continuous mountains, huge mountains, alternating mountains and valleys, surrounded by mountains and plateaus, and is called "Guangxi Basin".

Geomorphology of mountainous hilly basin

The landform of Guangxi is generally a mountainous and hilly basin landform, which is basin-shaped. Characterized in that:

1. The size of the basin is mixed. The west and north are the edge of Yunnan-Guizhou Plateau, the northeast is Nanling Mountain, and the southeast and south are Yunkai Mountain, 60,000 Mountain and 100,000 Mountain. The central part of the basin is divided by the arc mountain in Guangxi, forming the central Guangxi basin with Liuzhou as the center, and forming many small and medium-sized basins such as Youjiang, Wuming, Nanning, Yulin and Lipu along the depression in front of the arc mountain in Guangxi, forming a mixed geomorphic structure of large and small basins.

2. Mountains are mostly arc-shaped and layered. From north to south, it can be roughly divided into four columns: the first column is Damiao Mountain-90,000 Mountains; The second column is Da Nanshan-Tianping Mountain-Phoenix Mountain; The third column is Jiaqiaoling-Dayaoshan-Lianhua Mountain-Zhenlongshan-Daming Mountain-Duyangshan (also known as Guangxi Arc); The fourth column is Yunkai Dashan-60,000 Dashan-10/00,000 Dashan-Daqingshan. The trend of the mountain system is obviously characterized by the compression of the Pacific plate in the east and the compression of the Indian Ocean plate in the west. The mountainous area is mainly Zhongshan, which is more than 800 meters above sea level, accounting for 23.5% of the total area of Guangxi. The low mountains with an altitude of 400-800 meters take the second place, accounting for 15.9% of the total area of Guangxi. The main peak of Maoer Mountain in northeast Guangxi is 2 14 1 m above sea level, which is the highest peak in Guangxi and Nanling. Gui Xiang Corridor between Yuechengling-Maoershan-Haiyang Mountain is one of the three corridors in China.

3. The hills are complex, accounting for 10.3% of the total area of Guangxi, and concentrated in southeast, south and southwest Guangxi.

4. Flat land (including valley, valley plain, piedmont plain, delta and low platform mountain) accounts for 26.9% of the total area of Guangxi. Guangxi plain mainly includes river alluvial plain and dissolution plain. River alluvial plains are mainly distributed along large and medium-sized rivers, and the larger plains are Jiang Xun Plain, Yujiang Plain, Binyang Plain and Nanliujiang Delta. Among them, Jiang Xun Plain is the largest, with an area of 630 square kilometers.

5. Karst is widely distributed, accounting for 37.8% of the total area of Guangxi, concentrated in southwest, northwest, middle and northeast Guangxi. Its developmental type is rare in the world.