Laian County, Chuzhou City, Anhui Province

Laian County Laian county is a county under the jurisdiction of Chuzhou City, Anhui Province, with a total area of 1481 square kilometers. Located in the east of Anhui Province, between the Yangtze River and Huaihe River, adjacent to Jiangbei new district of Nanjing city. By 2019, the permanent resident population will be 452000.

In the first year of Zhongxing (958), yongyang county was changed to Lai'an county, which belonged to Chuzhou of Huainan army. According to Taiping Huanyu Ji, "Lai'an water is located in the East Sanli of the county. It originates from Maling mountain and flows eastward to Lai'an village. This is the origin of Lai'an county. In December 1992, with the approval of the State Council, a prefecture level Chuzhou City under the provincial jurisdiction was established, and Laian county was under the jurisdiction of Chuzhou City. It has jurisdiction over 11 towns and 1 Township, and the government is located in Liming Road, Xin'an town.

Shanghai Nanjing Luoyang expressway, national highway 104 and provincial highway 312 run through the territory. Jinpu railway, Hefei Nanjing railway and Beijing Shanghai high speed railway pass by the county. The county seat is 80 kilometers away from Nanjing Lukou International Airport and only 10 kilometers away from Chuzhou station of Jinpu railway. Inland river shipping goes directly to the Yangtze River. In 2019, Laian county's annual GDP will reach 31.12 billion yuan.

In January 2020, it won the honorary title of "China beautiful rural construction demonstration county".

Historical evolution

Laian county has a long history. Stone tools, ceramics and bone artifacts found in the dunqiu mountain site prove that human beings lived and multiplied in the county during the Neolithic era. According to Taiping Huanyu Ji, "Lai'an water is located in the East Sanli of the county. It originates from Maling mountain and flows eastward to Lai'an village."

In the Tang and Yu dynasties, it belonged to Yangzhou.

In the early Zhou Dynasty, it belonged to the state of Xu.

In the spring and Autumn period, it first belonged to Wu and then to Chu, so it is called Wu tou Chu Wei.

The Warring States period belongs to Chu.

In the 26th year of the first emperor of Qin Dynasty (221 BC), Jianyang county was set up to govern the east ridge of Shuikou Town.

In the early Western Han Dynasty, it belonged to Huainan state. In the first year of Yuanshou (122 BC), Emperor Wu returned to Jiujiang county.

In the Eastern Han Dynasty, Emperor Guangwu merged Jianyang County into Quanjiao County, which still belonged to Jiujiang county.

Three Kingdoms, belonging to Wu, called Quanjiao County, under the jurisdiction of Yangzhou.

In the Western Jin Dynasty, it belongs to Huainan County of Yangzhou, known as Quanjiao county.

In the Eastern Jin Dynasty, Wang Daoxing carried out the "overseas Chinese sending law" and set up dunqiu County in the east of the county. Later, the abandoned county was dunqiu County, belonging to Qin County of Yongzhou.

In the southern and Northern Dynasties and Song Dynasty, it belonged to Qin County in Yuzhou, Guangling County in southern Yanzhou, and Xinchang County in Xuzhou, which was called dunqiu county. Dunqiu county was transferred to Xinchang city (today's Chuzhou City in Anhui Province), which was called Xinchang County.

In the northern and Southern Dynasties, Qi belonged to Xinchang County of northern Xuzhou, known as dunqiu county.

In the northern and Southern Dynasties, Liang belonged to Xinchang County of qiaozhou, which was called dunqiu county. Later, it was analyzed that dunqiu county was set up as Gaotang County, which was governed in Banta town today.

In the northern and Southern Dynasties and the Eastern Wei Dynasty, it belonged to Xinchang County of qiaozhou, known as dunqiu county.

In the northern and Southern Dynasties and the Northern Zhou Dynasty, Gaotang county was abolished as Gaotang county.

In the early Sui Dynasty, Gaotang county was merged into dunqiu county and renamed Xinchang County. In 598, Xinchang County was changed into Qingliu County.

In the early Tang Dynasty, Chuzhou was called Qingliu County. In the third year of Jinglong (709), Qingliu County was set up as yongyang County, governing Wagang in the north of the city, belonging to Chuzhou, Huainan road.

In the Southern Tang Dynasty, yongyang county was changed to Lai'an county in the first year of Zhongxing (958), belonging to Chuzhou of Huainan army.

In the Northern Song Dynasty, it belonged to the military of yongyang County, Chuzhou, the capital of Zhili.

In 1135, he came to An'an province and entered Qingliu County. In 1148, he restored Lai'an county and ruled Dayong (Yong) town, which is now Xin'an town.

In Yuan Dynasty, it belonged to Chuzhou Road, Jiangbei huaidong Road, Jianghuai Province, and later to Chuzhou Road, Yangzhou road.

In 1368, Lai'an county was incorporated into Chuzhou in the first year of Hongwu in Ming Dynasty. In 1380, it was restored to Chuzhou in Fengyang Prefecture. Hongwu 22 years (1389), is the capital of Chuzhou Zhili. In the first year of Yongle (1403), it belonged to Chuzhou, Zhili, Nanjing.

In the second year of Shunzhi (1645), it belonged to Anlu Chuzhou and daochuzhou. In 1667, it belonged to Chuzhou, Zhili, Anhui Province.

In the first year of the Republic of China (1912), he came to Zhili County, Anhui Province. In 1914, it belonged to huaisidao, Anhui Province. In 1928, Dao was abolished and Zhili was established in Anhui Province. In 1932, it was the fifth administrative supervision district of Anhui Province. In 1941, it was the ninth administrative supervision district of Anhui Province. In 1943, it belonged to the Huainan Jiangsu Anhui Border Region Committee of the Communist Party of China. In 1944, it was entrusted by the fifth administrative supervision district of Anhui Province and returned to the ninth administrative supervision district of Anhui Province after the victory of the Anti Japanese war.

On January 22, 1949, Lai'an county was liberated, belonging to Chuxian District of Northern Anhui Province.

On April 12, 1952, it belonged to Chuxian County, Anhui Province.

On January 12, 1956, it belonged to Bengbu special area of Anhui Province.

On April 13, 1961, it belonged to Chuxian County, Anhui Province.

March 29, 1971, belongs to Chuxian County, Anhui Province.

In December 1992, it belongs to Chuzhou City, Anhui Province.

administrative division

By 2018, Lai'an county has jurisdiction over 12 townships, including Xin'an Town, Banta Town, Chahe Town, Shuikou Town, shunshan Town, Leiguan Town, Shiguan Town, Daying Town, Zhangshan Town, Dushan Town, Sancheng town and Yangying township. The county government is located at Liming Road (north side of Butterfly Park) in Xin'an Town, Lai'an county.

geographical environment

Location context

Laian county is located in the east of Chuzhou City, Anhui Province, between the Yangtze River and Huaihe River. Geographical coordinates: 118 ° 20 ′～ 118 ° 40 ′ e, 32 ° 10 ′～ 32 ° 45 ′ n. The longest is 55 km from north to South and the widest is 30 km from east to west. With a total area of 1481 square kilometers, the county is adjacent to Tianchang City and Liuhe District of Nanjing City in Jiangsu Province in the East, Chuzhou City and Mingguang City in the west, Pukou District of Nanjing City in the South and Xuyi county in Jiangsu Province in the north.

geological structure

The geological structure of Laian county is mainly NE trending sag and fault formed since Yanshan crustal movement. In addition to the lack of Qingbaikou deposits in the early Late Proterozoic, the strata of all ages have developed since the Middle Proterozoic, but most of them are covered by Quaternary strata and rarely exposed. The Mesoproterozoic is exposed to the north of fuxingji and lianzishan, and to the south of Longwangshan, with a thickness of more than 2135m. The Sinian system is sporadically exposed to the north of shunshan, the south of lianzishan and the southwest of Pingyang reservoir. It is a late Sinian deposit with a thickness of 1602m and contains algae fossils. The Ordovician system is exposed in the southeast of Pingyang reservoir, which is an early Ordovician deposit. It is more than 300 meters thick and contains Nautilus and brachiopod fossils. The Cretaceous system is distributed in the South and northeast of leiguanji County, northwest of Dushan, west of Pingyang reservoir and the junction of Langya district and Nanqiao District, with a thickness of more than 300. Only the upper Chishan formation is sporadically exposed. The third series is mainly distributed from the county seat to the north of Shiguan. Among them, the lower Tertiary is in shunshanji, goutoushan and zhangshanji formations, mainly composed of brown mudstone and sandstone with gravel layer, and a thin layer of gypsum at the bottom of paozui area, containing bivalves, gastropods, ostracods, phyllopods, fish, mammals and sporopollen fossils, with a thickness of 302 meters.

topographic features

Laian county is high in the northwest and low in the southeast. There are hills in the north and undulating plains with hills and depressions in the south, with gentle hills scattered; there are broad valley plains on both sides of Chuhe River, Peihe River and xinlai river. The altitude of the whole county is less than 220 meters, and the relative elevation is more than 100 meters. There are three types of landforms: hills, terraces and floodplains. The area respectively accounts for 30%, 40% and 30% of the total area of the county. The hills in the county are distributed in the periphery of or on both sides of the low mountains, and form a ladder like terrain with the low mountains, which can be divided into erosion hills, basalt hills and hills.

Climatic characteristics

Laian county belongs to subtropical humid monsoon climate zone. It is characterized by four distinct seasons, obvious monsoon, mild climate, abundant rainfall, sufficient light and long frost free period.

natural resources

plant resources

The common arbors in Lai'an county include Platycladus orientalis, juniper, juniper, juniper, juniper, fast-growing cypress, Podocarpus arvensis, Cephalotaxus fortunei, Magnolia grandiflora, Magnolia officinalis, Liriodendron chinense, Cinnamomum camphora, etc.; the common shrubs include Sabina przewalskii, Sabina serrulata, Sabina przewalskii, Phellodendron amurense, Magnolia, Piper nigrum, Spiraea mayeri, etc.; the common shrubs in Lai'an county include Sabina przewalskii, Sabina serpentina, Sabina chinensis, Sabina chinensis, Sabina The most common types of flowers are Magnolia grandiflora, evergreen, jasmine, Osmanthus fragrans, Begonia, Michelia, chrysanthemum, crabapple, wild chrysanthemum, plum blossom, Narcissus, jasmine and so on; the most common types of grasses are Setaria, Artemisia argyi, thatched grass, Carex, Gracilaria, verbena and impatiens.

Animal resources

The common birds in Lai'an county mainly include Greyhound, mallard, bean geese, fan tailed sand cone, heron, ring necked pheasant and quail; the mammals mainly include wolf, fox, hedgehog, bat, hare, rat, deer, badger, squirrel, coyote, civet and weasel. The common fishes are silver carp, grass carp, carp, crucian carp, catfish, mullet, Kunyu, Monopterus albus, barbed loach, Siniperca chuatsi, loach and loach; the common insects are ladybug, locust, scarab, cutworm, aphid, stink bug, longicorn, etc.; in addition, there are mussel, snail, turtle, crab, shrimp, toad (frog, toad), snake, lizard (tetrapod), gecko, etc.

mineral resources

The non-metallic mineral resources in Laian county have large reserves, many varieties and high grade, mainly including more than 20 kinds of potash feldspar, bentonite, basalt, quartzite, etc., of which the proven potash feldspar distribution area is 80 square kilometers.

population

By the end of 2019, 487 thousand people had registered residence in Lai County, with 452 thousand permanent residents, an increase of 4 thousand over last year. The urbanization rate was 49.71%, 1.26 percentage points higher than that of the previous year. The annual birth rate was 9.96 ‰, 0.75 thousand points lower than that of the previous year; the death rate was 5.96 ‰, 0.22 thousand points lower; and the natural population growth rate was 4.0 ‰.

Economics

Chinese PinYin : An Hui Sheng Chu Zhou Shi Lai An Xian