Deyang City, Sichuan Province

Deyang City, also known as "Jingcheng", is a prefecture level city in Sichuan Province. It is located in the northeast of Chengdu Plain, in the transition zone from Longmen Mountains to Sichuan Basin, with mountain vertical climate in the northwest and subtropical humid monsoon climate in the southeast. The total area of the city is 5910 square kilometers, with 2 districts and 1 counties under the jurisdiction of 3 county-level cities. In 2018, the registered residence population was 3 million 877 thousand.

Deyang City is adjacent to Chengdu, the provincial capital, and is located at the intersection of the Silk Road Economic Belt and the Yangtze River economic belt. It strives to build a new northern city of Chengdu as an international metropolis. Deyang is 50 kilometers away from Chengdu Shuangliu International Airport and 24 kilometers away from Qingbaijiang, the largest railway container center station in Asia. Deyang is a major technical equipment manufacturing base in China, which was built because of the "three line construction" national layout of modern industry. In November 2017, Deyang became the second batch of national emergency industry demonstration bases.

On July 5, 2019, the Ministry of ecological environment of the people's Republic of China announced the special investigation of black and odorous water bodies in the first stage of overall planning and strengthening supervision in 2019. Deyang was listed in the list of cities with less than 80% black and odorous water elimination proportion, and the elimination proportion was 0%.

In 2020, Deyang's GDP will reach 240.41 billion yuan.

Historical evolution

In ancient times, it was the place of Baipu. In 316 BC, the fifth year of King Shenliang of Zhou Dynasty, that is, the ninth year of gengyuan of King Huiwen of Qin Dynasty, Qin Dynasty destroyed the two states of Bashu and established the two prefectures of Bashu. Today, Deyang belongs to the prefecture of Shu. County under the county, County Pavilion.

In the third year of Wude (620), Gaozu of Tang Dynasty, Luoxian county and Mianzhu County were established as Deyang county (now Jingyang District of Deyang City), belonging to Yizhou.

In 686, Wu Zetian established Hanzhou in Luo County (now Guanghan City) and led five counties. Deyang county was under the jurisdiction of jiannandao Hanzhou.

In 742, Emperor Xuanzong changed Hanzhou into Deyang county. In the first year of emperor Qianyuan of suzong (758), Deyang county was rebuilt as Hanzhou.

In the third year of Qiande (965), Emperor Taizu of the Northern Song Dynasty set up Hanzhou in Luo County and led four counties (including Deyang county) under Xichuan road. In 1059, Xichuan road was changed to Chengdu Fu Road. In the Southern Song Dynasty, Hanzhou was still established, and Lingxian was the same as that in the Northern Song Dynasty.

In the first year of Zhongtong (1260), Emperor Shizu of Yuan Dynasty restored Hanzhou to Deyang county.

In the fourth year of Hongwu (1371), Emperor Taizu of the Ming Dynasty, Hanzhou still led three counties (including Deyang county), belonging to Chengdu Prefecture. In 1377, Deyang County entered Hanzhou and was restored in 1380.

In the early Qing Dynasty, it was still the Ming system. In 1659, Luojiang county was merged into Deyang county. In the 26th year of Kangxi (1687), Hanzhou was reduced to Sanzhou (Danzhou), no longer governing counties, Deyang county was subordinate to Chengdu Prefecture. In 1727, Deyang county was changed to mianzhou Zhili Prefecture. In 1802, Luojiang county was established.

In 1952, the people's Government of Sichuan Province was established, and the administrative districts of Eastern Sichuan, southern Sichuan, Western Sichuan and Northern Sichuan were abolished. Deyang county belongs to Mianyang special district.

In 1959, Luojiang county was abolished, most of its towns were merged into Deyang County, and the rest were merged into Mianyang county and Anxian county.

In the 1950s and 1960s, the state set up two industrial zones and carried out three line construction in Deyang, forming the foundation and urban framework of modern large industry.

On February 17, 1983, 13 units of Deyang County, Erzhong plant, Dongfang Electric Machinery Plant, Dongfang Electrical machinery plant, No.1 mechanical and electrical installation company, Deyang refractory material plant, Sichuan glass fiber plant, Sichuan resin plant, No.2 geophysical prospecting brigade, Sichuan Deyang 95 plant, Jingyang phosphate fertilizer plant in Mianyang area, Sichuan construction machinery plant, Deyang cement products plant of Sichuan Provincial Construction Department issued a report on Deyang land The regional system reform proposal liaison meeting was held, and the meeting unanimously approved the report on system reform in Deyang region, which is to bypass Mianyang prefectural Party committee and directly give to Sichuan provincial Party committee and Sichuan Provincial People's government.

On March 10, 1983, in order to change the system of Deyang area and establish Deyang City under the jurisdiction of Sichuan Province, many departments of Deyang county jointly issued a document and submitted the supplementary report on re requesting the establishment of Deyang City to the people's Government of Sichuan Province.

On April 1, 1983, the Sichuan provincial Party committee and government agreed to the application report of Deyang County on preparing to build a prefecture level Deyang City, and informed and decided Guanghan, Shifang and Mianzhu counties to participate in the preparatory group for the construction of Deyang City. On April 8, the preparatory group for the construction of Deyang City was established. On April 12, the preparatory work for the construction of Deyang City officially began. In early June, Zhongjiang County was added as a member of the preparatory group. On June 14, the CPC Sichuan Provincial Committee and Sichuan Provincial People's government formally submitted a report to the State Council.

On August 18, 1983, the State Council approved the establishment of Deyang City in Han'an (1983) No. 156 document. Deyang City is located in Chengguan of Deyang City. It has jurisdiction over the sub district office, Hanwang Town, Jingyang, Chengcheng and Bajiao communes. Deyang, Zhongjiang and Mianzhu counties in Mianyang and Guanghan and Shifang counties in Chengdu are under the jurisdiction of Deyang City. "

On September 12, 1984, with the approval of the State Council, it was agreed to abolish the organizational system of Deyang county and establish Shizhong District of Deyang City.

In 1988, with the approval of the State Council, Guanghan county was abolished and Guanghan City was established. It is still managed by Deyang City.

On August 3, 1996, with the approval of the State Council, it was agreed to abolish Shizhong District of Deyang City and establish Jingyang district and Luojiang county.

In October 1996, with the approval of the State Council, Mianzhu County and Shifang county were abolished and Mianzhu City and Shifang City were established. It is still managed by Deyang City.

In August 2017, the State Council agreed to abolish Luojiang county and establish Luojiang District of Deyang City.

administrative division

Deyang City governs 6 county-level administrative divisions (2 municipal districts, 3 county-level cities, 1 county) and 84 township level administrative divisions (13 streets, 67 towns, 4 townships). It covers an area of 5911 square kilometers and has a population of 3.92 million. Deyang Municipal People's government is located at No. 37, Section 1, Changjiang West Road, Jingyang district.

Remarks: 1. Deyang economic and Technological Development Zone (entrusted bajiaojing street and Jingdong Street) implements separate planning and entrusts the management authority of social and economic affairs in the management area.

2. Deyang Tianfu Jingcheng Party Working Committee (Management Committee) and Jingyang high tech Zone implement the management mode of "one organization, two brands". It covers 70 square kilometers, including 15.75 square kilometers of Tianyuan street in Jingyang District, 28.98 square kilometers of Tianyuan District in central urban area, and 25.27 square kilometers of Jinlun town and Xiaohan town in Guanghan City.

geographical environment

Location context

Deyang City is located in the northeast edge of Chengdu Plain with geographic coordinates of 30 ° 31 ′ - 31 ° 42 ′ N and 103 ° 45 ′ - 105 ° 15 ′ E. Deyang city borders Fucheng District of Mianyang City in the northeast, Santai County of Mianyang City in the East, Daying County of Suining City and Lezhi county of Ziyang City in the southeast, Jintang County, Qingbaijiang District and Xindu District of Chengdu City in the south, Pengzhou City of Chengdu City in the west, Maoxian County of ABA Tibetan and Qiang Autonomous Prefecture in the northwest, and Anzhou District of Mianyang City in the north. It covers an area of 5910 square kilometers.

topographic features

Deyang City is located in the transition zone from Longmen Mountains to Sichuan Basin. According to the terrain, there are high mountains, middle mountains, low mountains, hills and plains. It is in the shape of silkworm from northwest to Southeast. The terrain is high in the northwest and low in the southeast. The landform of the city is divided into Northwest Mountainous Area, central plain, southwest low mountains and hills. The northwest is Longmen mountain area, with an altitude of 2000-3000 meters. The highest peak is shiziwang peak, with an altitude of 4984.1 meters. The central part is located in the northeast of Chengdu Plain, with an altitude of 465-750m.

In the southeast, it crosses the Longquan mountains and is a hilly area in the central Sichuan Basin, with an altitude of 650-1000 meters. The lowest point is at ershuikou, Shanchuan village, Puxing Town, Zhongjiang County, with an altitude of 308 meters. The plain area of the city accounts for 30.8% of the total area of the city, the mountainous area accounts for 19.7% of the total area, and the hilly area accounts for 49.5% of the total area.

climate

There are obvious differences in climate between the Northwest Mountainous Area and the southeast plain and hilly area in Deyang City. The northwest is mountainous vertical climate, and the southeast is subtropical humid monsoon climate. The main climatic characteristics are: mild climate, four distinct seasons, abundant rainfall, long frost free period, and obvious dry winter. In spring, the cold air activity is frequent, the temperature rise is unstable, the precipitation is less, and there is often spring drought; in summer, there is no hot summer, there is more rainstorm, and there is often flood; in autumn, the temperature drops quickly, and there is often continuous rain; in winter, it is warm, less rain, more cloudy days, and more fog days. The annual average temperature is 15 ℃ - 17 ℃, the average temperature in the coldest month (January) is 5 ℃ - 6 ℃, and the average temperature in the hottest month (July) is 25 ℃. The annual average sunshine hours are 1000-1300 hours, the daily average temperature is higher than 0 ℃ all the year round, and the accumulated temperature is 5500-6000 ℃.

The extreme maximum temperature is 37.3 ℃, and the extreme minimum temperature is - 7.6 ℃. The annual total precipitation is 900-950mm, and the precipitation gradually decreases from northwest to Southeast. The annual precipitation is more than 950mm in the northwest, 900-950mm in the middle and less than 960mm in the southeast. Most of the precipitation is from May to October, accounting for 87-89% of the annual precipitation. The maximum annual precipitation is 1400-1500mm, and the youngest is 530-630mm. The annual average frost free period is 270-290 days. The average number of snowfall days per year is 1-3 days, mostly in the middle of winter. Northerly wind prevails in plains and hills. The annual average wind speed is 1.4-1.6 M / s, and the maximum wind speed is in spring. The average wind speed is 1.6-2.0 M / s from March to may, and the maximum wind speed is 14-19 M / s. The autumn and winter monsoon is the smallest, with an average wind speed of 0.9-1.5 M / m from October to February.

hydrology

Rivers in Deyang City belong to Tuo River

Chinese PinYin : Si Chuan Sheng De Yang Shi