Guangxi, abbreviated as Gui, the provincial capital Nanning, is located in the southern Xinjiang of the motherland, between 104°26'-112°04' east longitude and 20°54'-26°24' north latitude, with the Tropic of Cancer running through the entire region. middle part. Guangxi is strategically located, bordering the Beibu Gulf to the south, facing Southeast Asia, adjoining Vietnam to the southwest, Guangdong, Hong Kong and Macao to the east, central China to the north, and the Southwest at its back. It is the most convenient access to the sea in southwest China and the junction of China's western resource-based economy and southeastern open economy. It occupies an important position in the economic exchanges between China and Southeast Asia. Guangxi borders Guangdong, Hunan, Guizhou, Yunnan and other provinces. The border with Guangdong Province in the southeast is about 931 kilometers long, the border with Hunan Province in the northeast is about 970 kilometers long, the border with Guizhou Province in the north is about 1,177 kilometers long, and the border with Yunnan Province in the west is about 632 kilometers long. The southwest border with the Socialist Republic of Vietnam is about 637 kilometers long. The mainland coastline is about 1,500 kilometers long. The total land area of ??the region is 236,700 square kilometers, accounting for 2.47% of the country's total area. The maximum span from east to west is about 771 kilometers, and the maximum span from north to south (to Xieyang Island in the south) is about 634 kilometers. The entire autonomous region is home to Zhuang, Han, Yao, Miao, Dong, Mulao, Maonan, Hui, Jing, Yi, Shui, and Gelao ethnic groups. At the end of 2005, the total population was 49.25 million, of which the Han population was 30.27 million, accounting for 61.46%; the minority population was 18.98 million, accounting for 38.54%, of which the Zhuang population was 16.05 million, accounting for 84.57% of the minority population, and 32.60% of the total population. Topography Overview Guangxi is located on the southeastern edge of the Yunnan-Guizhou Plateau, which is the second highest level of terrain in the country. It is located in the west of the hills of Guangdong and Guangxi, and faces the Beibu Gulf to the south. The entire terrain slopes from northwest to southeast, with continuous mountains, huge mountains, and alternating ridges and valleys. It is mostly surrounded by mountains and plateaus and is basin-shaped, so it is known as the "Guangxi Basin". Mountainous and hilly basin landform Guangxi's landform is generally mountainous and hilly basin landform, which is basin-shaped. Its characteristics are: 1. Basins are of mixed sizes. To the west and north are the edges of the Yunnan-Guizhou Plateau, to the northeast are the Nanling Mountains, and to the southeast and south are the Yunkai Mountains, the Liuwan Mountains, and the Shiwan Mountains. The central part of the basin is divided by the Guangxi Arc Mountains, forming the Guizhong Basin with Liuzhou as the center. Along the front depression of the Guangxi Arc Mountains are many small and medium-sized basins such as Youjiang, Wuming, Nanning, Yulin, Lipu, etc., forming a mixture of large and small basins. landform structure. 2. Most of the mountain systems are arc-shaped, with layers nested within each other. It can be roughly divided into four columns from north to south: the first column is Damiao Mountain-Jiuwanda Mountain; the second column is Dananshan-Tianping Mountain-Fenghuang Mountain; the third column is Jiaqiaoling-Dayao Mountain-Lianhua Mountain-Zhen Longshan - Daming Mountain - Duyang Mountain (this column is also called the Guangxi Arc); the fourth column is Yunkai Mountain - Liuwan Mountain - Shiwanda Mountain - Daqing Mountain. The trend of the mountain system is obviously that it is squeezed by the Pacific plate in the east and the Indian Ocean in the west Signs of plate compression. The mountainous areas are mainly Zhongshan with an altitude of 800 meters or more, accounting for 23.5% of the total area of ??Guangxi; followed by low mountains with an altitude of 400-800 meters, accounting for 15.9% of the total area of ??Guangxi. The main peak of Maoer Mountain in northeastern Guangxi is 2141 meters above sea level. The first peak is also the highest peak in Nanling. The Hunan-Guangxi Corridor between Yuechengling-Maoershan and Haiyangshan is one of the three major corridors in China. 3. The hills are intricate and occupy 10.3% of the total area of ??Guangxi. Contiguous areas are concentrated in the south and southwest of Guangxi. 4. Flatlands (including valleys, valley plains, piedmont plains, deltas and low platform mountains) account for 26.9% of the total area of ??Guangxi. There are two main types of plains: river alluvial plains and dissolution plains. Mainly distributed along major and medium-sized rivers, the larger plains include the Xunjiang Plain, Yujiang Plain, Binyang Plain, Nanliujiang Delta, etc. Among them, the Xunjiang Plain is the largest, covering an area of ??630 square kilometers. 5. Karst is widely distributed. Guangxi has a total area of ??37.8 square meters, and is concentrated in southwest Guangxi, northwest Guangxi, central Guangxi, and northeast Guangxi. The number of rivers in Guangxi is rare in the world. Most of the rivers in Guangxi follow the terrain and flow from northwest to southeast, forming a large number of rivers. It is a dendritic water system that runs through central Guangxi with the Hongshui River-Xijiang River as the main stream and tributaries distributed on both sides.

Among them, there are 986 rivers with a rain collection area of ??more than 50 square kilometers, a total length of 34,000 kilometers, and a river network density of 0.144 kilometers/square kilometers. It belongs to four major river systems: the Pearl River, the Yangtze River, the Guinan River that flows into the sea alone, and the Baidu River. The Pearl River system is the largest water system in Guangxi, with a basin area accounting for 85.2% of the total area of ??Guangxi. There are 833 rivers with a rainwater collection area of ??more than 50 square kilometers. The main trunk river Nanpanjiang-Hongshui River-Qianjiang-Xunjiang-Xijiang flows from the northwest to the east. The entire territory, with a total length of 1,239 kilometers, flows from Wuzhou to Guangdong and into the South China Sea. The Yangtze River system is located in the northeastern part of Guangxi. The drainage area accounts for 3.5% of the total area of ??Guangxi. There are 30 rivers with rainwater collection areas of more than 50 square kilometers. The main river sections are the Xiangjiang River and Zijiang River, which belong to the upper reaches of the Dongting Lake water system and merge into the Yangtze River through Hunan. Among them, the Xiangjiang River passes through the Ling Canal dug in the Qin Dynasty near Xing'an County, connecting the two major water systems of the Yangtze River and the Pearl River. The independent inflow seawater system is mainly distributed in southern Guangxi, and the basin area accounts for 10.7% of the total area of ??Guangxi. The larger rivers include Nanliu River, Qinjiang River, Beilun River, etc., all of which flow into the Beibu Gulf. The drainage area of ??the Baidu River system that flows through Vietnam into the Beibu Gulf accounts for 0.6 of the total area of ??Guangxi. There are many karst underground rivers, 433 of them, of which 248 are more than 10 kilometers long. Poxin River, Disu River, etc. all form their own underground river systems. Coast and Islands Southern Guangxi is adjacent to the Beibu Gulf, which belongs to the South China Sea. The mainland coast starts from the mouth of Ximi River in Hepu County in the east and ends in Beilun at the junction of China and Vietnam in the west