Geographical location and territory: taonan city is located in the northwest of Jilin Province, the middle of three northeastern provinces and the east of Inner Mongolia, with a total area of 5 102 square kilometers. It is adjacent to Da 'an City, Jilin Province in the east, with a border of 37. 1 km, and borders Tuquan County, Youkeqian Banner, You Ke Zhongqi and Wulanhaote City in the northwest, with a border of 264 km. It borders Tongyu County, Jilin Province in the south, with a boundary length of110.79 km; The northeast is adjacent to Taobei District of Jilin Province, with a boundary length of131.58km..
Topography: The topography of taonan city gradually increases from southeast to northwest. The lowest point in the urban area is Guojiadian Paozi, with an altitude of 134. 1 m, and the highest point is downtown Niu Shan, with an altitude of 662.5m.. The northern part is the Mid-Levels area (the remnant veins of Daxing 'anling), the central part is the microwave plain, and the southern part is full of sand dunes.
Meteorological data: Taonan belongs to the continental monsoon climate in the north temperate zone, characterized by large temperature difference, strong seasonality and the same season of rain and heat. Spring is dry, windy and rainy, summer is hot and rainy, autumn is warm and cold, and winter is cold and snowy. The average annual precipitation is 377.9 mm, and the rainfall is concentrated in July and August. The average annual evaporation is 2083.3mm, the average annual sunshine is 3005.3h, the average annual effective accumulated temperature is 3000.5C, the highest temperature is 40.2C, the lowest temperature is-33.3C, the soil freezing depth is 180cm, the average first frost day is September 27th, the final frost day is May 7th of the following year, and the frost-free period is 142 days.
Second, the historical evolution
Taonan-named because it is located on the south bank of Taoer River. She is not only an ancient city with a long history, but also a political, military, economic and cultural center city in the northwest border of Jilin Province, and is known as the "Millennium Ancient City and Centennial County". According to the discovered Neolithic cultural sites and unearthed cultural relics, as early as 4000 years ago, human beings lived and multiplied in this land. From the Spring and Autumn Period to the Sui and Tang Dynasties, ethnic minorities such as Donghu and Xianbei lived here. Taonan city was established earlier, and the administrative divisions evolved frequently. The Tang Dynasty belonged to the Governor's House at the end of the Song Dynasty, Taizhou in the Liao and Jin Dynasties, Taining Road in the Yuan Dynasty, Tainingwei, the capital of Nurhar in the Ming Dynasty, and Horqin Right Front Banner in the Qing Dynasty. Taonan House was built in the present site of 1904, and governs five counties: Jing 'an, Kaitong, Liquan, Zhendong and An Guang. 19 13 years, the government was removed and a county was established, which was called Taonan County and belonged to Fengtian. 1August 1945 14 later belonged to Nenjiang, northern Liaoning and Heilongjiang provinces, and1June 1954 belonged to Jilin Province. 1958 10 merged with the original 12 township of Baicheng County to form Taoan County. 1987 May 2 1 Approved by the State Council, the county was withdrawn to set up a city, which was called taonan city.
Three. administrative division
Taonan city belongs to Baicheng City, Jilin Province. The whole city has jurisdiction over 16 townships (including 2 ethnic minority townships), 5 towns and 6 sub-district offices.
Four. Population and nationality
At the end of 2000, the total population of taonan city was 43 1699, including Han nationality, Mongolian nationality, Manchu nationality, Hui nationality and Korean nationality. The urban population is 1, 2 1, 405438+0, accounting for 28. 1% of the total population.
Verb (abbreviation for verb) natural resources
Land resources: 2.74 million mu of cultivated land. (per capita arable land in rural areas is about 10 mu), and forest land is about 2.08 million mu; 2.32 million mu of grassland; 15 17 The hilly area is 300,000 mu.
Water resources: There are 7 large and small rivers in China, and Taoer River is a tributary of Nenjiang River, with a length of 156 km. Liujiao River is a larger tributary of Taoer River, with a total length of 70 kilometers. There are two medium-sized reservoirs, Qunchang Reservoir and Chuangye Reservoir, with a storage capacity of10.268 billion cubic meters, and there are 39 bubble marshes of Guojiadian and Sihaibao. There are 436,000 mu of water surface, 326,000 mu of fish culture surface, 6,543,800 mu of fish culture surface and 6,543,800 mu of reed pond, which can restore 72,000 mu of reed and produce more than 8,000 tons of reed annually. The city's total water resources are 542 million cubic meters per year, including 448 million cubic meters of groundwater resources per year.
Forest resources: The total volume of standing trees is 2.29 million cubic meters, mainly including poplar, pine, elm and willow, and the forest coverage rate reaches 9.5 1%.
Mineral resources: The proven metals include copper, aluminum, lead, zinc, iron, gold and silver. There are more than 20 kinds of nonmetals such as coal, perlite, limestone, kaolin and bentonite.
Wild plant resources: rich in more than 220 kinds of Chinese herbal medicines such as Radix Saposhnikoviae, Radix Glycyrrhizae, Herba Ephedrae and Fructus Tribuli.
Native products: black water watermelon, big Ying Ge mung bean, "four spicy" (pepper, yellow smoke, onion, garlic) castor, Wanbao vermicelli, miscellaneous grains and beans, fresh vegetables, etc.