Chinese name: Dazhou
Location: Sichuan, China
Subordinate areas: Tongchuan District, Daxian County and Xuanhan
Telephone area code: 818
Postal code: 635
Geographical location: located in the northeast of Sichuan, at the southern foot of Daba Mountain
Area: 16591 square meters. Dazhou is the eastern passage from Tongjiang to Dahai in Sichuan and the transportation hub in the junction of Sichuan, Chongqing, Hubei and Shaanxi. National highways 21 and 318 run across the country. Da-Yu Expressway goes directly to Chongqing, and the construction of Da-Shan Expressway has started. The whole road will be completed by the end of 211. It takes only one day to go back and forth from Dazhou to Xi 'an, and it takes about 9 hours from Chengdu to Xi 'an via Dazhou. On December 23, 29, the Dazhou-Bazhong Expressway was officially started, with a construction period of 3 years and was completed and opened to traffic in 212. On September 1, 29, Dawan Expressway was officially started, with a construction period of 3 years, and it is expected to be completed and opened to traffic in 212. On July 19th, 21, the construction of Nanchong-Dazhu-Liangping Expressway was officially started. The construction period of Nanchong-Quxian section was 3 years, and that of Quxian-Shiqiao section was 5 years. Dazhou Heshi Airport has direct access to Chengdu, Guangzhou, Shenzhen, Beijing, Shanghai and other places. Dazhou is the transportation hub of the communication between Tongjiang and Dahai in Sichuan and the junction of Sichuan, Chongqing, Hubei and Shaanxi. Qujiang shipping goes directly to Chongqing. * * * There are nine navigable rivers, namely Qujiang River, Bahe River, Zhouhe River and Qianhe River, Houhe River, Zhonghe River, Tiexi River, Qingxi River and Lingangxi River, which basically form a waterway transportation network with Qujiang River, Bahe River as the main stream, and the basin covers four counties (cities) in the city. Dazhou railway network is very developed. The existing Dacheng, Xiangyu and Dawan railways are under construction.
Dazhou Railway Station has trains to Chongqing, Chengdu, Wanzhou, Guiyang, Xi 'an, Beijing West, Hankou, Zhengzhou, Fuzhou, Guangzhou and other places, which provide services such as passenger transport, ticket sales, luggage and logistics. The station always takes reputation first, guests first and quality service as its business purpose, and serves every customer wholeheartedly. Dazhou Railway Station is the fourth largest railway station in southwest China and the second largest marshalling station in southwest China. On September 2th, 21, "CRH Harmony" EMU was launched from Dazhou to Chengdu, with the shortest running time of 2 hours and 2 minutes. At present, there are 5 trains of "Harmony" EMU between Dazhou and Chengdu every day.
edit the topography of Dazhou in this section
the topography of Dazhou is high in the northeast (Daba mountain area) and low in the southwest (basin hilly area). The highest point is Datuanbao, Jichang Township, Xuanhan County, with an altitude of 2,458.3 meters; The lowest place is Tianguan Village, Wangxi Township, Quxian County, with an altitude of 222 meters. Daba Mountain lies horizontally in the north of Xuanhan, and Mingyue Mountain, Tongluo Mountain and Huafu Mountain lie vertically from north to south, dividing the city into three parts: mountainous area, hilly area and flat dam. The mountainous area accounts for 7.7%, the hilly area accounts for 28.1% and the flat dam accounts for 1.2%. The mountains in the north are severely cut and steep, forming medium and low mountain landform units; The south-central part is relatively gentle, forming an equal valley landform unit.
Edit the watershed between Jialing River and Hanjiang River in Dazhou Mountain Range
Daba Mountain
and the geographical boundary between Sichuan Basin and Hanzhong Basin. In a narrow sense, Daba Mountain only refers to Micang Mountain and Daba Mountain in the border area of Sichuan, Shaanxi and Hubei provinces. It stretches for more than 5 kilometers from east to west, so it is called Qianli Mountain. Bashan for short. Daba Mountain in a broad sense is the general name of the border mountains of Sichuan and Daba Mountain
Gansu, Shaanxi and Hubei provinces, including Motianling in the west of Micang Mountain and Shennongjia Mountain in the east of Daba Mountain. Daba Mountain is located between the Qinling geosyncline in the north and the Sichuan platform syncline in the south. Due to the control of the north and south tectonic lines, the mountain presents a series of regular parallel fold belts composed of anticlines and synclines, but the east and west parts are slightly north and the middle part is slightly south, so it is called Daba Mountain arc fold belt. The strata are ancient, mainly limestone, dolomite, metamorphic rocks and sandstone, with granite distributed locally. The first two karst landforms, such as multi-peak cluster, karst cave and underground river, are famous as Guangyuan Longdong Cave, Wangcang Huang Yang Cave and Tongjiang Zhongfeng Cave. The ridge is composed of hard crystalline limestone, which is magnificent after rising and denudation. It is about 2 meters above sea level, 2797 meters from Wuxi Taiping Mountain and 315.4 meters from Shennongjia, Hubei Province.
Huaying Mountain
Huaying Mountain originates at the southern foot of Daba Mountain, which is the boundary mountain between the parallel folded ridges and valleys in eastern Sichuan and the hills in central Sichuan. It runs from northeast to southwest, crossing Dazhou, Guang 'an, Chongqing, Neijiang, Zigong, Luzhou and Yibin, with a total length of 325 kilometers. It is named Huaying Mountain because "the snow accumulates on the top of the mountain, and the distance looks like Qiong Yao scatters the ground and the crystal jade spreads the mountain". Huaying Mountain enters the northeast of Guang 'an District from the south of Quxian County, and reaches Baoding at the junction of Linshui County and Huaying City in the south, extending into Yubei District and Hechuan District of Chongqing. Huaying Mountain is about 7 kilometers long in Guang 'an, generally 6 kilometers wide and 9 kilometers wide at its widest point. From Liangzi in Linshui Temple to Baoding, it is the highest part of Huaying Mountain, with an altitude of 174 meters, which is also the highest peak in Sichuan Basin. Huaying Mountain is rich in mineral deposits, dense forests, a wide variety of animals, and natural and cultural landscapes with great tourism development value. In 1993, Huaying Mountain was listed as a provincial scenic spot.
Tongluo Mountain
Tongluo Mountain
Tongluo Mountain is the second mountain range in the parallel folded valley area in eastern Sichuan. It starts from the northern end of Pushan Mountain in Lei Yin, Da County, and runs northeast to southwest, crossing Dazhou, Dazhu County, Linshui County, Changshou County, Yubei District, Nan 'an District, Banan District, Qijiang County and other counties in Chongqing, and ends at Tiantai Mountain on the north bank of Qijiang River. The total length is 26 kilometers, the width is 5 kilometers to 1 kilometers, and the general altitude is 6 meters to 1 meters. The highest peak, Wanfeng Mountain, is in Longan Town, Linshui County, with an altitude of 154 meters. Because the Yangtze River cuts across the mountains to the east of Chongqing, Tongluo Gorge is formed, and the river in the gorge hits the stone like the sound of Tongluo, hence the name Tongluo Mountain. Tongluo Mountain enters the territory of Linshui County from Daancao in Dazhu County, and passes through Xinzhen, Taihe, Lengjia, Chang 'an, Liangban, Jiu Feng, Yaofeng, Yaotan and other towns. It is about 65 kilometers long, including the section from Wanfeng Mountain to Xianying Mountain. The mountain is steep and the valley is deep. It is the highest terrain in Tongluo Mountain. The axis of anticline has been corroded for a long time, showing the shape of "one mountain, two ridges and one trough" There are many residual hills, dissolved depressions and sinkholes in the trough, which have typical karst landscape. The valleys such as Daping, Guiren trough, beam slab and Changjiacao are flat and open, densely populated, with fertile land and rich products. On both sides of the valley, there are caves all over the place, especially in the area from Jiu Feng to the Little Three Gorges in yulin river. There are more than 3 caves, among which Jiulong Cave, Moon Cave Cave, Lanjiadong Cave, Hejiadong Cave, Lion Cave and Fairy Cave have the best scenery.
Mingyue Mountain
Mingyue Mountain is the third mountain range in the parallel folded valley area in eastern Sichuan. It starts from Kaijiang County in the north and runs from northeast to southwest, crossing Dazhou, Liangping, Dazhu, Linshui, Dianjiang, Changshou and Yubei, and ends at Yongxing Field in Banan District. The total length is 232 kilometers, the width is 4 kilometers to 6 kilometers, and the altitude is 7 meters to 1 meters. Because the Yangtze River cuts across the mountains between Yubei District and Banan District, a canyon is formed. There is a round hole like a full moon on the cliff on the bank of the gorge, so it is called Mingyue Gorge, and the mountain is named after the gorge.
editing this section of Dazhou hydrology
The rivers in Dazhou mainly belong to the Jialing River system, a tributary of the Yangtze River, which originates from Daba Mountain and is distributed in a dendritic form from north to south. Qianhe River, Zhonghe River and Houhe River merge into Zhouhe River and then merge with Bahe River into Qujiang River in Sanhui Town, Quxian County, and flow southward for 3 kilometers into the Yangtze River. There are 53 rivers with a basin area of over 1 square kilometers and 15 main rivers with a basin area of over 1, square kilometers. * * * There are nine navigable rivers, namely Qujiang River, Zhouhe River, Bahe River, Qianhe River, Houhe River, Zhonghe River, Tiexi River, Qingxi River and Lingang River, which basically form a waterway transportation network with Qujiang River, Zhouhe River and Bahe River as the main streams, and the river basin covers four counties (cities) in the city. The navigable mileage of each river varies, and the carrying capacity is below 1 tons.
Qujiang River
Qujiang River belongs to Jialing River system. There are many tributaries of Jialing River, and the largest two are Fujiang River and Qujiang River. Qujiang River originates from Daba Mountain, also known as diving, flows through Bazhong and Dazhou, and is called Qujiang River until Sanhui Town in Quxian County, with a total length of 72 kilometers. Fujiang River originates from Xuebaoding, Minshan Mountain, and flows through Mianyang, Deyang, Suining, Guang 'an and other hilly areas in central Sichuan, with a total length of 7 kilometers. Both rivers meet Jialing River in Hechuan. Qujiang River, starting from Sanhui Town in Quxian County, flows through 8 districts, towns and 21 townships in Quxian County from north to south, including Sanhui District, Tuxi District, Limba District, suburb, Qujiang Town, Xiandu District and Langya District, with tributaries such as Yongxing River, Guixi River, Liujiang River and Zhongtan River injected successively. It leaves the country from Wajiao Beach in Langya Township at the southernmost tip of Quxian County, enters Qinlao Village in Xiaoxi Township of Guang 'an County, obliquely runs through the central part of Guang 'an County from northeast to southwest, flows through Hengsheng District, Stalagmite District, Guange District, Daicheng District, Kwun Tong District, Xiexing District, Guangfu District and Huaying City, and enters Zhonghe District and Luodu District of Yuechi County from Laojun Village in Hualong Township of Guangfu District. It asks about Linxi River, Luodu River, Xinmin River and the main stream of Qujiang River, which originated from Huaying Mountain. They leave the country at Danxikou of Shunliangzhai Village in Sailong Township, yuechi county, enter the northeast of Hechuan District, and flow through incense burners, docks, mosquito dragons, ancient cities, Sunjia, Weixi, Shuanghuai and Laimen in five towns of Weixi, Longshi, Xiaomian, Guandu and Yunmen.
Tongchuan Bridge
Hanyu Highway is the shortest route to transport Soviet aid anti-Japanese materials to Chongqing, and it was called "Chuanshan East Road" at that time. It is more than 9 kilometers shorter than Sichuan-Shaanxi Middle Road and 27 kilometers shorter than Sichuan-Shaanxi Road. Therefore, the Wuhan National Government ordered the construction in February 1938. Ding Gongnan arrived at Hanyu Highway in August of that year, and successively served as the captain of the second survey team and the section chief of the second public works section, responsible for the layout and construction of the northern section of Daxian County. In June 194, due to the reduction of Soviet aid to China, the Han (middle) Xuan (Han) section was ordered to stop work, and the original two engineering offices, Han Xuan and Xuan Yu, were reorganized into the Hanyu Highway Engineering Office, with Ding Gongnan as the chief engineering department, responsible for the survey and installation work of the 417-kilometer highway from Wanyuan to Chongqing. Among them, the area north of Daxian County has complex terrain and arduous project, so it is very difficult to select the line. However, the organization, personnel and funds of Hanyu Road are excellent, and the technical standards are strict, which increases the arduousness of survey and route selection. With the concerted efforts of him and the vast number of technicians, Hanyu Highway became a highway with good alignment standards at that time and was well received. There are many bridges and culverts in Tongchuan Bridge, and most of them adopt stone arches and reinforced concrete permanent structures. To this end, bridges and ferries with a span of more than 1 meters were identified at that time, and the Bridge Crossing Engineering Office was set up to be responsible. But the Tongchuan Bridge, which was completed in early 1941, was assigned by Ding Gongnan when he was the captain of the Second Survey Team. The bridge is located near the county seat of Daxian County, across the state river. Zhou River is formed by the confluence of Qianhe River, Zhonghe River and Houhe River. During the flood season, mountain torrents erupt and the water flows rapidly. After repeated surveys, he selected the bridge site at that time. The water flow was straight and the foundation was good. After the bridge crossing engineering department, the bridge was designed as a reinforced concrete cantilever beam bridge with 11 holes and a span of 2 meters. Together with the approach bridge, the whole bridge is 3.94 meters long and the designed load is 15 tons. It was a permanent highway bridge with the largest span and cantilever structure at that time.
edit the climate of Dazhou in this section
Dazhou city belongs to subtropical humid monsoon climate type. Due to the complex terrain, the regional climate varies greatly. The low mountains, hills and valleys below 8 meters above sea level have mild climate, with warm winter, early spring, hot summer and cool autumn, distinct four seasons and long frost-free period; At an altitude of 8 to 1 meters, the climate in the low and Zhongshan mountains is cool and humid, with late rejuvenation, hot summer, cool autumn and long cold winter; Zhongshan area, which is more than 1 meters above sea level, has insufficient light and heat resources, a long cold period, and outstanding spring cold and autumn frost. The city is rich in heat resources, with rain and heat in the same period. The annual average temperature is between 14.7 degrees and 17.6 degrees, and the frost-free period is about 3 days. The city has abundant rainfall, with an average annual rainfall of 176-127 mm. There are many cold waves and low temperatures in spring, droughts and floods, strong winds and hail in summer, and continuous rain in autumn.
Edit natural resources in this section
Phoenix Mountain Phoenix Building
Land resources In 2, the land area of the whole city was 166 square kilometers (there was no change from 21 to 23). The cultivated land area is 98, hectares. In 21, it decreased slightly to 29,8 hectares. The per capita arable land was .55 hectares in 2 and .54 hectares in 21. Pingba and hilly land are fertile and rich in organic matter, mainly distributed in Kaijiang County, Daxian County, Tongchuan District, Dazhu County and Quxian County. The potential land resources in China are very rich. There are 576, hectares of low-yield farmland, low-yield garden land, low-yield forest land and low-yield water surface land, accounting for 47.67% of the total of cultivated land, forest land, garden land and aquaculture water surface in the city. There are more in Wanyuan City, Dazhu County, Daxian County and Xuanhan County. The land resources to be developed are 27,3 hectares, accounting for 16.31% of the area under its jurisdiction. Wanyuan City, Xuanhan County and Daxian County are more.
editing mineral resources in this section
38 kinds of minerals have been found in the city, with more than 25 places of origin. Among them, there are 28 kinds of proven reserves and 146 producing areas; 28 species can be developed and utilized, and 21 species have been developed and utilized. Well-known industries: natural gas; Iron ore; Stone coal; Ramie
I. energy mine
The proven reserves of stone coal are 763 million tons, including 58 million tons of retained reserves, 122 million tons of off-balance-sheet reserves and 639 million tons of coking coal. Mainly distributed in Daxian County (including Tongchuan District), Dazhu County, Xuanhan County, Quxian County, Kaijiang County and Wanyuan City. Natural gas
Natural gas resources are abundant. Dazhou has 3.8 trillion cubic meters of prospective natural gas reserves and 66 billion cubic meters of proven natural gas reserves, making it the most potential gas field in China after Tarim gas field in Xinjiang and Ordos gas field in Inner Mongolia. Sinopec discovered the largest and most abundant marine gas field in Puguang, Xuanhan, with proven natural gas reserves as high as 356.1 billion cubic meters, and it is estimated that the proven reserves will reach 77 billion cubic meters by 29. The daily open flow of a single well in Tam Tieshanpo Gas Field of Wanyuan PetroChina is as high as 15.5 million cubic meters, which is the highest daily output of a single well on land in China. PetroChina and Sinopec have taken Dazhou as the main battlefield for natural gas exploration and exploitation during the 11th Five-Year Plan period. By 21, five natural gas purification plants, including Puguang, Luojiazhai, Tieshanpo, Dukou and Shihe, will be built, with a natural gas processing capacity of 74 million cubic meters per day, an annual increase of 2 billion cubic meters of commercial natural gas and an annual output of 4.5 million tons of sulfur.
II. Metal mines
The iron ore reserves are 37.43 million tons, and the predicted reserves are 14 million tons, which are mainly distributed in Hongqi, Changshi, Guanba, paddy fields and beaches in Wanyuan City. Daxian County is emerging, and Xinhua, Fan Kuai, Qibei, Tiansheng and Shangxia in Xuanhan County are also distributed. Manganese Mine A manganese mine was found in the area of Tianba-Xiane, Dazhu River, Wanyuan City. Kuangyan