What are the characteristics of the natural environment in Guangxi?

Guangxi Zhuang Autonomous Region is located in the southern coast of China, with east longitude10426'-1204' and north latitude 20 54'-26 24'. The Tropic of Cancer runs through the middle of this area.

Adjacent provinces: Guangdong, Hunan, Guizhou and Yunnan, facing Hainan across the sea.

Neighboring countries: Vietnam, with a total length of more than 800 kilometers; Coastline length: about 1500 km. Total land area: 236,700 square kilometers. Proportion of China's total land area: 2.5%, ranking 9th in all provinces, autonomous regions and municipalities in China.

2. Topography

Guangxi is located in the southeast edge of Yunnan-Guizhou Plateau, which is called the second step of China's topography. It is located in the west of the hills of Guangdong and Guangxi, and borders the Beibu Gulf in the south. The whole terrain is surrounded by mountains and plateaus, and the south-central part is mostly flat, so the terrain inclines from northwest to southeast, and there is a basin between northwest and southeast, which is called "Guangxi Basin" in history. Guigang City, located in the southeast of the autonomous region, has the largest plain "Xunyu Plain" in Guangxi.

3. Climate and environment

Guangxi is located in the low latitude, and the Tropic of Cancer runs through the middle of the region, belonging to the subtropical monsoon climate zone. The north and south are bounded by Hezhou-Donglan line, the north belongs to the middle subtropical monsoon climate zone, and the south belongs to the south subtropical monsoon climate zone. The extreme maximum temperature is 33.7-42.5℃, the extreme minimum temperature is -8.4-2.9℃, and the annual average temperature is between 16.5-23. 1℃. Most parts of the region have a warm climate, abundant heat, abundant rain, clear wet and dry, no obvious seasonal changes, moderate sunshine, less winter and more summer.

4. Hydrological characteristics

Guangxi karst landform is relatively developed, and surface water and groundwater can be transformed into each other, and the quantity is relatively stable. However, due to the fact that rivers are mainly replenished by rainfall, the distribution of precipitation in different places is uneven, and the proportion of seawater entering and leaving is not harmonious. In addition, drought, rainstorm and flood are more common due to the alternating influence of warm and humid airflow in the southwest and denatured cold air mass in the north.

Therefore, the total amount of water resources in Guangxi is unstable. In the regular flood season, 70%-80% of river runoff is collected, including Zishui, Xiangjiang and Hejiang rivers in northeast Guangxi from March to August, Jiang Xun and Youjiang rivers in southwest Guangxi from May to 65438+10, and Hongshui River, Liujiang River, Zuojiang River, Yujiang River, Qianjiang River and Xijiang River in central Guangxi.

5. Factory environment

There are 8562 species of wild plants in Guangxi, belonging to 288 families 17 17 genera, ranking first in all provinces (autonomous regions and municipalities directly under the central government). There are 37 species of national first-class key protected plants, and the precious plants mainly include camellia chrysantha, Taxodium ascendens, spinulosa spinulosa, giant trees and so on. Guangxi is adjacent to Beibu Gulf in the south, with winding coastline, and Gu Duo has a vast territory. There are many natural harbors, and 2/kloc-0 ports can be developed along the coast, with a tidal flat area of about 654.38+10,000 hectares, of which mangroves account for 40% of the country, with a total area of 5,654 square kilometers.

The above contents refer to Baidu Encyclopedia-Guangxi.