Dexing City, Shangrao City, Jiangxi Province

Dexing Dexing City is directly under the central government of Jiangxi Province and administered by Shangrao City (county level). It is located in the northeast of Jiangxi Province, the north of Shangrao City and the junction of Jiangxi, Zhejiang and Anhui provinces. It is named after the meaning of "the treasure of mountains and rivers, only virtue is prosperity". By the end of 2016, Dexing City had a total area of 2101 square kilometers, with jurisdiction over three streets, five towns, six townships and the provincial Economic Development Zone of Damaoshan. In December 1990, Dexing City was set up as a city instead of a county. In 2016, the permanent resident population of Dexing City was 300200.

The county was established in the eighth year of Jian'an (AD 203) of the Eastern Han Dynasty. In history, there were 417 Jinshi, accounting for about one fifth of the total number of Jinshi in Shangrao. A large number of celebrities such as Zhang Qian, the originator of copper hydrometallurgy, emerged. Dexing is an important nonferrous metal industrial base in China. Sanqing mountain is located in the eastern part of the city, with the provincial scenic area of Damaoshan and Wufeng wind tunnel. It has won the honor of national advanced city of scientific and technological progress.

In 2016, Dexing achieved a GDP of 12.651 billion yuan.

In July 2019, it won the title of "China's natural oxygen bar" establishment area in 2019. In October 2020, it was rated as the national model city (county) of double support.

Historical evolution

Dexing has a long history and has been inhabited by human beings in the Neolithic age.

Before the pre Qin period, it belonged to Yangzhou.

Qin belongs to Jiujiang County, which is the land of fan county.

Han belongs to Yuzhang County, which is the land of Yuhan county.

In the eighth year of Jian'an (203) of the Eastern Han Dynasty, part of the territory was located in Le'an county and Zhiyin Castle (located in yinchengfan, xingangshan town).

In the first year of Chen Tianjia (560) in the Southern Dynasty, Le'an county was changed into Yincheng County, which governed yinyebao (now Yincheng East).

Sui kaihuang nine years (589), the abolition of Yincheng County, jurisdiction into Poyang County.

Tang Wude four years (621), to Le'an hometown home Leping County, Zhiyin castle, Li Raozhou. In the ninth year of Wude (626), Leping county was abolished and Poyang County was restored. In the second year of Shangyuan Dynasty (675), Yinshan Yincheng set up Yinchang, named denggong Chang, which was under the jurisdiction of Jiangxi salt and iron capital. In the fourth year of Kaiyuan (716), the county of Leping was rebuilt and the city of changleshuikou (now Gangkou village, Zhongbu Township, Leping City) was located in the east of Leping county.

In the second year of Shengyuan in the Southern Tang Dynasty (938), Deng gongchang was changed to set up a county, which was named Dexing County with the meaning of "the treasure of mountains and rivers, only virtue is prosperity".

Song lirao Prefecture Poyang County. Yuan Li Raozhou road. The Ming and Qing Dynasties were under the jurisdiction of Raozhou Prefecture.

After the revolution of 1911, it was under the jurisdiction of xunyangdao in 1914, Jiangxi Province in 1915 and the fourth administrative region of Jiangxi Province in 1921. During the second Civil Revolutionary War, it was one of the revolutionary bases of Fujian, Zhejiang and Jiangxi. On May 2, 1949, Dexing was liberated and attached to Shangrao district.

After the founding of the people's Republic of China, it belonged to Leping district at first, and then to Fuliang district later. In 1952, it returned to Shangrao. After 1971, it was attached to Shangrao area. On December 26, 1990, with the approval of the State Council, Dexing County was abolished and Dexing City (county level) was established, which is subordinate to Shangrao Prefecture. In 2000, Dexing City was directly under the jurisdiction of Jiangxi Province and was managed by Shangrao City.

On September 29, 2020, Dexing was listed in the pilot area of deepening the reform of rural highway management and maintenance system.

administrative division

Division evolution

In 1981, Sizhou town was established.

On June 5, 1991, Xiangtun Township and Zhancun Township were abolished and Xiangtun town and Huaqiao town were established.

On September 27, 2001, Xinying town was abolished and Diaozhong village committee, which was transferred from Xiangtun Town, was transferred to Yincheng town; tanbuqiao Town, which was transferred to Sizhou town; Xinjian Township, which was merged with xingangshan reclamation farm, was abolished and xingangshan town was established.

On October 21, 2003, zhancai township was abolished and the established system was put under the jurisdiction of xingangshan town; Jietian township was abolished and the established system was put under the jurisdiction of Zhangcun township.

On January 20, 2006, the Provincial Department of Civil Affairs approved the approval of Shangrao City to withdraw and merge towns and townships: with the approval of the provincial people's government, it was agreed to cancel Yincheng town of Dexing City and set up Yincheng sub district office; Xiangtun town of Dexing City was canceled and the completed system was put under the jurisdiction of Sizhou town.

Zoning details

As of June 2010, Dexing City has three streets, five towns and six townships, and the municipal government is located in Yincheng street.

geographical environment

Location context

Dexing is located in the northeast of Jiangxi Province, the north of Shangrao City, the junction of Jiangxi, Zhejiang and Anhui provinces, and the middle and upper reaches of Le'an River. It is located between 28 ° 38 ′ 25 ″ N and 29 ° 17 ′ 43 ″ e, 117 ° 22 ′ 49 ″ E and 118 ° 06 ′ 15 ″ E. It is adjacent to Kaihua County in Zhejiang Province in the East, Yushan County and Guangxin District in the southeast, Hengfeng county and Yiyang County in the south, Leping City in the West and Wuyuan County in the north. The city is about 50 km from east to west and 70 km from north to south, with a total area of 2101 square kilometers.

topographic features

Dexing is located in the middle and low mountain areas, with hills and mausoleums rolling and extending. The Huaiyu mountains enter from the East and extend from the middle to the southwest, forming a steep terrain on both sides of the East and the south, gradually low and flat in the West and North, and inclined to the inside. The highest point of the territory is Yujing peak of Sanqing mountain in the East, the main peak is 1819.9 meters above sea level, and the lowest point is near Lancun village in the west, 32 meters above sea level. In Dexing City, the mountainous area accounts for 44%, the hilly area 33%, and the low hilly area 23%.

hydrology

Dexing belongs to Raohe River system. Le'an River is the main river in the territory. It originates from the border between Jiangxi and Anhui, enters from the north, flows through Haikou and Sizhou, and has a flow length of 51 km. The rivers with a drainage area of more than 150 square kilometers in the territory include five tributaries: tiquan River, Lizhai River, Jishui River, Changle River and Jianshui River, all of which are Changliu River and flow from southeast to northwest into Le'an River. Controlled by the main geological structure in the northeast direction, the strata, mountains and water systems in the city are distributed from northeast to southwest. Taking the "Northeast Jiangxi deep fault" passing through the rao'er-fujiawu area as the boundary, the middle and low mountain areas on the southeast side of the boundary failed to form a catchment basin, and the groundwater discharge was scattered, the circulation was strong, and the water quantity was poor. In the hilly area on the southwest side of the boundary, the groundwater mainly flows to the small basins outside the boundary. In addition to the pore water with medium water content in the loose accumulation layer of the river valley, there is only fissure water with poor water content in the rest areas.

climate

Dexing is a humid monsoon region in the middle subtropics. It has the characteristics of warm climate, abundant rainfall, sufficient light, four distinct seasons, large temperature difference between day and night, and long frost free period. From 1991 to 2006, the annual average temperature was 17.8 ℃, the extreme maximum temperature was 40.0 ℃, and the extreme minimum temperature was - 9.4 ℃. The annual average precipitation is 1981.7mm. The annual average sunshine is 1625.1 hours. The annual average frost free period is 279 days, which is suitable for the growth of rice based crops and subtropical evergreen broad-leaved forest.

natural resources

water resource

The surface water volume of Dexing City is 2.351 billion cubic meters in normal year, 1.895 billion cubic meters in dry year and 1.521 billion cubic meters in dry year, with an average of 2.417 billion cubic meters for many years. The distribution is as follows: 760 million cubic meters in northeast mountainous area (650.86 square kilometers), 828 million cubic meters in central hilly area (734.89 square kilometers), and 829 million cubic meters in Southwest Hilly Area (696.25 square kilometers). The groundwater resources in Dexing City are 484 million cubic meters in high water period, 316 million cubic meters in normal water period and 227 million cubic meters in low water period. The average annual groundwater resources are 321 million cubic meters, with 84 million cubic meters in northeast mountainous area, 95 million cubic meters in central hilly area and 142 million cubic meters in southwest hilly area.

mineral resources

There are 19 kinds of proven metal deposits in Dexing, including copper, gold, silver, lead, zinc, molybdenum, tungsten, chromium, iron, manganese, tin, nickel, vanadium, niobium, tantalum, gallium, indium, cadmium and uranium. Copper resources are especially abundant. There are Dexing Copper Deposit (Tongchang copper deposit), Fujiawu copper deposit, cinnabar red copper deposit and Yinshan copper deposit. As of 2006, the total amount of proved copper metal is 10.6749 million tons, and the total amount of retained copper metal is 8.1 million tons. Dexing copper deposit is one of the few super large porphyry copper deposits in the world, with 5.158 million tons of proven copper and 3.15 million tons of retained copper. There are many types of gold deposits with considerable reserves. There are three types of gold deposits: rock gold, associated gold and placer gold. The total amount of retained gold is 379.25 tons, of which the amount of retained gold is 115.37 tons, the amount of associated gold is 262.3 tons and the amount of placer gold is 1.58 tons. Jinshan gold deposit is a large rock gold deposit with 64 tons of proven gold and 46 tons of retained gold. There is a medium-sized lead-zinc deposit with a proven amount of lead and zinc of 120000 tons. Other major metal deposits include silver, with proven metal reserves of 5409 tons and retained metal reserves of 3881 tons; molybdenum, with proven metal reserves of 455600 tons and retained resource reserves of 264200 tons; tungsten, with retained reserves of 1438 tons; tin, with retained reserves of 1678 tons. There are abundant associated (coexisting) formations in metal deposits, among which 15 useful components associated with copper deposits are gold, silver, sulfur, gallium and indium.

Non metallic mineral deposits in Dexing include pyrite, serpentine, marble, limestone, anthracite, stone coal, clay, porcelain clay, jade, crystal, fluorite, etc. The standard ore reserves of associated pyrite in Dexing copper deposit and Zhusha red copper deposit are 91.693 million tons, and there are two independent small pyrite depots in guanmaoshan and Zhujia. There are one large serpentine deposit and one ore spot in the territory. The total amount of serpentine ore is 59.0123 million tons, and the reserve is 315.34 million tons. One of them is Zhang

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