Danyang City, Zhenjiang City, Jiangsu Province

Danyang City, a county-level city under the jurisdiction of Jiangsu Province and managed by Zhenjiang City, is located in the south of Jiangsu Province, between 31 ° 44 ′～ 32 ° 08 ′ N and 119 ° 23 ′～ 119 ° 53 ′ e, with a total area of 1047 square kilometers. Danyang is a subtropical monsoon climate, with humid climate, sufficient light, abundant rainfall, long frost free period and four distinct seasons. By 2019, Danyang has jurisdiction over 2 streets and 10 towns. The permanent population is 806300.

Danyang was established in the Warring States period, and it was originally Yunyang. In the book of mountains and seas, there is a river called Danshui, which is named Danyang according to the theory of "Yin and Yang in mountains and rivers, and Yang in the north of water". In December 1987, Danyang was established as Danyang City from county to city, which was managed by Zhenjiang city. Shanghai Nanjing Expressway (G42 Shanghai Chengdu Expressway), 312 National Road, 122 provincial road and 338 provincial road are the main trunk roads to enter and leave Danyang by road. The Beijing Hangzhou Grand Canal runs through Danyang by water transportation. Dagang Port is the third largest port of the Yangtze River open to the outside world.

In 2019, Danyang's GDP will reach 112.199 billion yuan, a year-on-year increase of 4.7%. China's Chinese mainland's 100 most competitive city was selected in December 2018, and the 2018 best business city in mainland China was 100, and the top 30 county level cities in China were the top 30. On October 8, 2019, it was rated as one of the top 100 counties and cities with comprehensive strength in China in 2019. Top 100 business environment counties in China in 2019. National Health City in 2019. In December 2020, the Chinese Academy of Social Sciences issued the national top 100 comprehensive competitiveness of county economy, ranking Danyang 40th.

Historical evolution

In the Neolithic age, there were human activities in Danyang.

Danyang was established in the Warring States period, and it was originally Yunyang.

In the first year of Qin Shihuang (221 BC), Qin Shihuang ruled the whole country and implemented the system of prefectures and counties. Soon it was renamed qu'a county.

In the first year of the founding of new Mang, qua county was changed to Fengmei county.

In the early Eastern Han Dynasty, qua county was renamed. In 234, Wu Jiahe changed qu'a County into Yunyang County.

In the second year of Taikang (281), it was renamed qu'a county.

In the first year of Tang Tianbao (742), Runzhou was changed to Danyang County, qua county to Danyang County, and Danyang County belonged to Danyang county. In the first year of Qianyuan (758), Danyang county was changed into Runzhou, and Danyang county belongs to Runzhou. Later, Danyang belonged to Zhenjiang.

In 1912, Danyang county was directly under Jiangsu Province.

In April 1949, the whole territory of Danyang was liberated, belonging to Zhenjiang District.

In September 1958, Zhenjiang District was changed to Changzhou District, and Danyang county belongs to Changzhou district.

In September 1959, Changzhou district was changed to Zhenjiang District.

In 1983, Danyang county was under the jurisdiction of Zhenjiang city.

In December 1987, Danyang was set up as a city instead of a county.

administrative division

By 2019, Danyang City has jurisdiction over 2 streets and 10 towns: Yunyang street, qu'a street, Situ Town, Yanling Town, Erling Town, daoshu Town, huangtang Town, Lucheng Town, Lingkou Town, Wangxian Town, Jiepai Town and danbei town. The municipal government is stationed in Yunyang street.

geographical environment

Location context

Danyang City is located in the south of Jiangsu Province and the west end of the Yangtze River Delta. It is adjacent to Wujin in the East, Jintan in the south, Dantu County in the West and North, Jiajiang in the northeast, and Yangzhong County across the river. The city is located between 31 ° 44 ′ - 32 ° 08 ′ N and 119 ° 23 ′ - 119 ° 53 ′ E. The distance is 32.5 km from dongshanao, Xiangxian town in the east to Yaozhuang, Quanzhou Township in the west, and 44 km from Yangzhuang, huangtang Township in the south to baimagang, Yucheng town in the north. The total area is 1047 square kilometers.

topographic features

Danyang City is located in the intersection of Ningzhen hills and Taihu Plain. There are low mountains, hills and plains, mainly plain. The plain and polder fields below 10 meters above sea level are 1.3267 million mu, accounting for 84.4% of the total land area; the rest are hills and hills, accounting for 15.6%. The average altitude is about 7 meters. The northern part belongs to the eastern part of Ningzhen hills and piedmont hillock, and the southern part belongs to the western part of Taihu Plain.

geology

The stratigraphic unit of Danyang area belongs to the lower Yangtze stratigraphic division of Yangtze region. The strata in the area are well developed from the Upper Proterozoic Sinian to the Cenozoic Quaternary. Except for the Cambrian and Ordovician, the strata of other ages are exposed. They are mainly distributed in the low mountains and hills of Ningzhen in the north and west of the city. The plain areas are covered by the Quaternary sediments. The strata from the old to the new are the Upper Proterozoic, Paleozoic, Mesozoic and Cenozoic.

Climate

Danyang City is located in the middle latitude north subtropical zone, belonging to marine climate. Due to the influence of monsoon circulation, it has obvious monsoon climate characteristics. Spring and autumn are the transition seasons of winter and summer monsoon, the cold and warm air masses compete with each other, precession and retreat, the dry and wet changes of cold and summer are significant; summer is controlled by warm and humid ocean air mass, the weather is hot and rainy; winter is controlled by polar Continental air mass, mainly cold and less rainy weather. It is characterized by humid climate, sufficient light, abundant rainfall, long frost free period and four distinct seasons.

hydrology

There are 96 rivers in Danyang City, with a total length of 464 km. Among them, Beijing Hangzhou canal, Hexi River, Jiuqu River, vanilla River and DanJin licao River are the main veins to connect the water system of Danyang City and form the water system of Danyang City.

natural resources

land resource

In the land area of Danyang City, the plain area is 61200 hectares, accounting for 72% of the land area; the hilly land area is 23800 hectares, accounting for 28%. At the end of 2002, the cultivated land area of Danyang City was 56900 hectares, including 53800 hectares of farmland protection area.

plant resources

There are three main tree species in Danyang City: deciduous oak species, Quercus variabilis, Quercus acutissima and Quercus glauca are dominant.

There are five other deciduous trees: Castanopsis fissa, Pistacia chinensis, catalpa bungeana, Liquidambar formosana and Sophora japonica.

There are five main evergreen broad-leaved trees: Broussonetia papyrifera, Ilex ammodendron, Cyclobalanopsis glauca, Quercus glauca and Photinia serrulata.

The shrub layer is dominated by thorny species, and there are 7 common shrubs: sandalwood, Piper nigrum, hawthorn, Lespedeza, Rhododendron, Vaccinium bracteatum and chatiao.

There are seven common lianas in mixed forest: Akebia, wisteria, Celastrus, Stephania tetrandra, Paqi, Smilax glabra, Pueraria lobata, etc.

The herbaceous plants under the forest are mainly Gramineae, yellow backed grass, tangerine grass, petiole grass, Platycodon grandiflorum, etc.

There are many kinds of herbs in barren mountain.

Animal resources

vertebrate

Mammals: Buffalo, cattle, cows, donkeys, goats, sheep, pigs, rabbits, dogs, cats, minks, otters, hedgehogs, badgers, bats, weasels (weasels).

Birds: chicken, duck, goose, pigeon, quail, cormorant, sparrow, magpie, crow, swallow, Skylark (called pheasant), cuckoo (cuckoo), lark, thrush, oriole, Pulsatilla, blue water sparrow, bitter duck, owl, woodpecker, warbler, wild duck, pheasant (pheasant), Kingfisher (finch), harrier.

Reptiles: Agkistrodon halys, Chilian snake (huochilian), Qicun snake, Zaoke spot, green snake, lizard and scorpion (quadruped), Shougong (gecko), turtle and turtle.

Amphibians: frogs, toads.

Fish: black carp, grass carp, bighead carp (Hypophthalmichthys molitrix), silver carp (Hypophthalmichthys molitrix), carp, crucian carp, bream, black fish, strip, mandarin fish, eel, Monopterus albus, loach, catfish, Pelteobagrus fulvidraco, chihuolang, shad, swordfish and puffer fish.

Arthropod

Insects: Silkworm, bee, Eupolyphaga, butterfly, dragonfly, mantis, cricket, ant, Longhorn, mole cricket, cicada.

Crustaceans: shrimp, crab.

Polypoda: centipede, scorpion (coir raincoat).

Spiders: round spiders, flat spiders, long legged spiders, fly tigers.

Mollusks

Mussels, snails, snails and scorpions.

Annelids

Earthworm, leech (leech).

mineral resources

The mineral resources of Danyang City are mainly concentrated in the northern hilly area. The main metal minerals are iron, manganese and galena, but the quality is low and the quantity is small. Non metallic minerals mainly include quartz, clay, peat, coal, gravel, axe chop, strange stone, dolomitic limestone and limestone, of which axe chop and strange stone are of good quality and have a reserve of hundreds of millions of tons.

water resource

There are 96 rivers in Danyang City, 464 km long, with Beijing Hangzhou canal, Hexi River, Jiuqu River and DanJin licao River as main veins, forming the city's water network. In addition, there are 9 large and small reservoirs with storage capacity of 6.88 million cubic meters, and nearly 10000 ponds with storage capacity of 15 million cubic meters. The city's groundwater reserves are about 400 million cubic meters, and the exploitable capacity is about 120 million cubic meters per year.

Power resources

Jianbi Power Plant and Qishuyan power plant with installed power capacity of 1.98 million KW and 122 kW in Danyang City are both within the radius of 30 km. There are two thermal power plants, Xielan and Longyuan, in the urban area.

population

As of 2018, the registered residence population of Danyang was 806 thousand and 300, of which 395 thousand and 600 were urban residents. The annual birth rate is 7.48 ‰, the death rate is 8.14 ‰, and the natural growth rate is - 0.66 ‰.

Economics

overview

In 2018, Danyang achieved a GDP of 125.025 billion yuan, an increase of 2.8% over the previous year, of which the added value of the primary industry was 4.856 billion yuan, a decrease of 9.1%; the added value of the secondary industry was 63.107 billion yuan, an increase of 4.0%; the added value of the tertiary industry was 57.062 billion yuan, an increase of 2.5%. According to registered residence population, the per capita GDP of the city is 154866 yuan, and the per capita GDP of the city is 126736 yuan per permanent resident. The proportion structure of added value of three industries was adjusted from 4.4:50.1:45.5 in 2017 to 3.9 in 2018

Chinese PinYin : Jiang Su Sheng Zhen Jiang Shi Dan Yang Shi