Wujin District, Changzhou City, Jiangsu Province

Wujin District, under the jurisdiction of Changzhou City, Jiangsu Province, is located in the geographic center of the Yangtze River Delta. It is surrounded by Taihu Lake, Gehu Lake (West Taihu Lake) and two freshwater lakes in southern Jiangsu. The Beijing Hangzhou Grand Canal passes through the area, covering a total area of 1066 square kilometers. It has jurisdiction over 11 towns, 5 streets, 1 national high tech Zone, 1 provincial high tech Zone, 2 provincial economic development zones, 1 provincial tourist resort and 1 provincial current tourism zone In the Agricultural Industrial Park, the registered residence population was 980 thousand in 2019 and the resident population was 1 million 450 thousand.

Wujin District is located in the plain along the Yangtze River and Taihu Lake. It is a subtropical monsoon climate with dry, wet, cold and warm, four distinct seasons, abundant rainfall and long frost free period. There are 1048 rivers and rivers with a total length of 2000.7 km, with an average of 1.82 km per square kilometer of land. It is a typical Jiangnan water network area. Wujin District is known as the "land of fish and rice". Xueyan and Panjia hilly areas in the East are rich in tea, peach, pear, grape and other fruits. There are Gehu Lake, Yanghu lake, Songjian lake and other natural lakes with crisscross River and harbor branches. Freshwater fisheries mainly include fish, crab, shrimp, mussel and other aquaculture. The main mineral resources are high-quality mineral water from Panjia and Furong, and white mud, purple sand and clay from Xin'an.

In 2018, the Gross Regional Product (GDP) of Wujin District was 238.013 billion yuan, an increase of 6.8% at comparable prices.

Historical evolution

Wujin District has been inhabited by human beings for more than 5000 years. The cultural relics unearthed from Yancheng and Sidun show that Wujin had formed a primitive village in the Neolithic age.

During the spring and Autumn period and Warring States period, Wujin was called Yanling City, which was the fiefdom of Jizha in the state of Wu. Yanling County was established in Qin Dynasty, piling county and pitan county were established in Han Dynasty, piling county and county were established in the second year of Taikang (281), Wujin County was established in the east of Dantu and qu'a, and Jinling county and county were established in the fifth year of Yongjia (311). Since then, Jinling and Wujin counties have been combined at different times, and their names have been changed.

In 1726, Wujin and Yanghu were divided into two counties. After the victory of 1911 Revolution, Wujin was merged into Wujin County in 1912.

On April 23, 1949, Changwu area was liberated, Wujin County was established as Changzhou City, Wujin and Changzhou are the same city.

From 1953 to 1956, it was under the jurisdiction of Zhenjiang District.

In 1956, it was assigned to Suzhou special area. In August 1958, Zhenjiang special area was renamed Changzhou special area, and Wujin County was re assigned to Changzhou special area.

In 1960, Wujin County was under the leadership of Changzhou City.

In 1962, Changzhou became a provincial city. Wujin County led by Changzhou City is under the leadership of Zhenjiang special office.

In March 1983, Wujin was under the jurisdiction of Changzhou.

On July 18, 1993, Wujin County government moved from Changzhou City to HUTANG town.

On June 8, 1995, the State Council approved the withdrawal of Wujin County into a city.

In April 2002, Wujin was divided into districts.

administrative division

By 2018, Wujin District has 11 towns and 5 streets: HUTANG Town, Xueyan Town, Lijia Town, Qianhuang Town, Niutang Town, Luoyang Town, Huangli Town, Jiaze Town, Henglin Town, Yaoguan Town, Hengshanqiao Town, Lucheng street, Dingyan street, Qishuyan street, Xihu street and Nanxiashu street. Wujin District government is located in HUTANG town.

geographical environment

Location context

Wujin District is located in the east of Changzhou City, across the Yangtze River Plain and Taihu Lake Plain, embracing Changzhou City, bordering Wuxi and Jiangyin in the East, Yixing City in the South and Taihu Lake, and Jintan District in the West. The administrative region is between 119 "38 '～ 120" 12' e and 31 "19 '～ 32" 04' n, with a total area of 1066 square kilometers.

topographic features

Wujin District is located in the west of the line of Mahang, Lijia and Caoqiao and the area outside Gehu. The ground elevation (Wusong base level) is 4-9m, and the northern part is slightly higher. The outcropping lithology is mainly Gehu formation clay. The lacustrine low-lying plain is distributed in the east of Qinglong Lijia line, with a ground elevation of 1.5-5.5m, high in the West and low in the East, and Rudong formation clay is exposed on the surface. The central part of the lake, with an elevation of 1.4-1.9 meters, is located to the east of Jiaoxi and Hengshanqiao. It is the last land forming area. After continuous reclamation, it has completed the final process of the formation of low-lying plain. The plain is covered with rivers and low-lying land. Lacustrine lakeside plain is distributed around Gehu Lake and along Taihu Lake. The ground elevation is 1-3 meters, inclining to the lake, belonging to beach accumulation, which is composed of clay in the upper part of Rudong formation. Finally, it forms a low-lying plain beside the lake. There are artificial and biological landforms such as fish pond, swamp, Lutan, wetland, dyke, sluice and so on.

In the northeast of denuded hills in Wujin District, Shunguo mountain is the highest (115m), which is composed of Silurian Devonian sandstone. It was once an island in ancient Furong lake, and the elevation of the peripheral plain is 1.5-3.5m. The elevation of Fenghuangshan huangjiashan sub unit in the southeast is less than 200m, and the slope is generally 15 ° to 30 ° which is composed of Silurian Devonian sandstone, and the elevation of peripheral plain is 3-5M; qinhuangshan belongs to volcanic mound landform, and xiaojiaoshan and xiaojiaoshan in Taihu Lake belong to Lake eroded residual mound. There are 39 mountains with a height of more than 30 meters in the area, all of which are distributed in the southeast and northeast towns. It is the remaining vein of Tianmu Mountain extending through Changxing and Yixing through Taihu Lake. Dajiaoshan and xiaojiaoshan are located in Taihu Lake. The highest mountain in the territory is Maogang mountain, with an altitude of 180.8 meters.

climate

Wujin District has a subtropical monsoon climate with dry, wet, cold and warm, four distinct seasons, abundant rainfall and long frost free period.

In spring, southeast wind prevails from March to May. During this period, the warm and humid air mass from the ocean gradually strengthened, and the temperature rose. The strong cold air from the North sometimes went south, which was alternately affected by the warm and humid air mass, resulting in sunny and rainy weather, cold and warm weather, and continuous rainy weather for more than five days every year. Severe late frost at the end of March and the beginning of April will do harm to agricultural production. After the "horse monk crossing the river" on February 18 of the lunar calendar, the weather tends to be stable.

Summer is usually from June to August. After summer, the warm and humid air mass of the Pacific continued to strengthen its northward movement, and the cold air from the South converged in the lower reaches of the Yangtze River, resulting in rainy weather. The plum was yellow ripe at that time, so it was called huangmeitian. The Meiyu period is generally from mid June to early July. After the end of Meiyu, the weather is hot and sunny in midsummer. There is often no heavy precipitation for more than 10 days or even dozens of days, which leads to early lodging and is unfavorable to the growth of dry crops and vegetables. From August to September, tropical storms and typhoons in transit are frequent, which often cause harm to the economy and people's lives and property.

Autumn is usually from September to November. The warm and humid air mass gradually retreated to the south, the temperature decreased, and the sunny weather appeared in autumn, with the sunshine percentage of more than 50%. In autumn harvest and planting season, there are continuous rainy days, which affect the progress and quality of autumn harvest and planting. The first frost appears in the later part of the season.

Winter is generally from December of the current year to February of the next year, and the wind direction is mainly northerly. Since 1986, the winter temperature is obviously higher. Cold wave is the main disastrous weather in winter, especially the strong cold wave at the end of winter and the beginning of spring, which causes frost damage to the overwintering crops. Heavy snow will also bring difficulties to urban and rural transportation and industrial production. There were 14 days of snowfall in 1988 and 1990, and the depth of snow reached 8 cm in 1988, which caused partial interruption of power supply, communication and transportation lines and collapse of houses, affecting the production and normal living order of enterprises.

hydrology

There are 1048 rivers in Wujin District, with a total length of 2000.7 km. On average, there are 1.82 km of rivers per square kilometer of land, which is a typical water network area in the south of the Yangtze River. The Beijing Hangzhou canal runs from east to west, 49 kilometers in Changwu area. The North Xinmeng River, Desheng River, Zaojiang River, Beitang River and Shun River form a north-south water system connecting the Yangtze River and the Grand Canal. In addition, control gates and water conservancy hubs are built in Xiaohe, Weicun and Weitang to facilitate boat transportation, irrigation and drainage. To the south of the Beijing Hangzhou canal, Mengjin River, Biandan River, Wuyi canal, Cailing port and Wujin port form a north-south water system to transport water from the Yangtze River to the towns in the south. Huangli River, Beiqian River and Zhonggan River start from Taohu Lake in Jintan in the West and enter Gehu Lake in the East; tailou canal starts from Gehu Lake in the West and enters Taihu Lake in the East, forming a three lake water system in east-west direction. Many secondary rivers are connected with backbone rivers and lead to villages.

natural resources

Animal resources

There are 13 classes of common annelids, molluscs, arthropods and vertebrates in Wujin District. Human production and living activities have a great impact on the number of animal species. Due to the widespread use of pesticides, it is difficult to find snails in the fields; in the polluted rivers such as Yong'an River and Lijia River, fish and shrimp are basically extinct. The development of aquaculture has greatly increased the number of grass carp, crucian carp and bream. Since the 1980s, animal husbandry enterprises have introduced new animal varieties from foreign countries. The insects are Italian bee and Pinghu bee. Fish include Russian sturgeon, American California perch, American minnow and Roche shrimp. In 1998, 50 ostrich species were introduced from Jiangxi Province. In 1999, 50 peacocks were introduced from India; in 2002, farmer Xu Xingliang obtained the "national key protected wildlife domestication and breeding license" and adopted White Swan, white Peng, mandarin duck and other rare birds. The livestock include sika deer, Holstein black and white dairy cow, Australian juanshan dairy cow, Shandong dairy goat and Suining goat; in 2002, South African Boer goat was introduced. Due to the changes of feeding conditions and market, some introduced animal species gradually disappeared. After the gradual improvement of the ecological environment, the number of birds increased, and endangered wild animals such as badger occasionally appeared.

plant resources

The common seed plants in Wujin District are divided into two phylum gymnosperms and angiosperms, belonging to 138 families. Gymnosperms Pinaceae

Chinese PinYin : Jiang Su Sheng Chang Zhou Shi Wu Jin Qu