Yancheng was the land of Huaiyi before the week; Zhou belongs to Qingzhou, Spring and Autumn belongs to Wu, and then to Yue. During the Warring States period, it belonged to Chu. Qin belongs to Donghai county; At the beginning of the Western Han Dynasty, Sheyang Hou and Liu were divided into fiefs, and the county was established in the fourth year of Emperor Yuanshou of the Han Dynasty, which was the beginning of Yancheng County. During the Three Kingdoms period, it belonged to Wei, and counties abolished it. The western Jin dynasty restored the county system; In the seventh year of the Eastern Jin Dynasty, Yixi was renamed Yancheng, which is the beginning of its current name; The Northern and Southern Dynasties called Yancheng County; At the beginning of Sui Dynasty, it was still a county, belonging to Jiangdu County. At the end of Sui Dynasty, Wei Che was king according to salt, which was divided into two counties: Xin 'an and Anle, and Yancheng County in the early Tang Dynasty. The Song Dynasty belonged to Chuzhou; The Yuan Dynasty belonged to Huai 'an Road; In the Ming Dynasty, it belonged to Huai 'an Prefecture of Nanzhili (Nanjing); In the early Qing Dynasty, it was a part of Jiangnan province. In the sixth year of Kangxi, it was located in Jiangsu Province and belonged to Huai 'an Prefecture. At the beginning of the Republic of China, it was the tenth administrative supervision area of Jiangsu Province. 1946, Yancheng was renamed Ye Ting City, but its original name was still restored. Setting of other counties: Funing county was built in the ninth year of Qing Yongzheng; Dongtai county was built in Qianlong thirty-three years; In the middle of War of Resistance against Japanese Aggression, four counties were established: Taibei, Yandong, Fudong and Jianyang. Xiangshui County is newly built 1966. 1983 implements the new system of city governing counties, and governs urban areas, suburbs and seven counties, namely Xiangshui, Binhai, Funing, Sheyang, Jianhu, Dafeng and Dongtai. After 1987, Dongtai and Dafeng successively set up cities. 1996, the suburbs were abolished and Du Yan county was established. Yancheng administrative division map
In 2003, the city was changed to tinghu district; Tinghu district has jurisdiction over Buffon, Una and Biancang, the former Yancheng City and the former Du Yan County, and the District People's Government is located in Renmin Middle Road. Du Yan County was abolished and Yandu District of Yancheng City was established. The administrative areas of Yandu District are Panhuang, Dazong Lake, Beilonggang, Wang Lou, Xuefu, Yifeng, Shangzhuang, Wu Ge, Beijiang, Qinnan, Longgang, Guo Meng and Dagang, and the district people's government is located in PanHuang Zhen. In 2007, the Jiangsu Provincial Government approved the Zhangzhuang Sub-district Office in tinghu district of Yancheng City to be placed under the jurisdiction of Yandu District, which is the outline of Yancheng's historical changes. 20 10 With the continuous expansion of Yancheng city scale and the adjustment of some divisions in tinghu district and Yandu District, Una Town was abolished in tinghu district, and Una Sub-district Office was established, Xincheng Sub-district Office was established in the western half of Nanyang Town, and Pan Huang Zhen was abolished in Yandu District, and two sub-district offices, Pan Huang and Yan Long, were established. Tinghu district 1: tinghu district is one of the central urban areas of Yancheng, and it is also a window for Yancheng to show to the outside world. Tinghu district is the economic and cultural center of Yancheng and an important area for the construction of Yancheng metropolitan area. The level of urbanization, economic development, education, education, consumption and traffic accessibility in tinghu district ranks first among all counties and cities in Yancheng. 2. Yandu District: Located in the southwest of Yancheng City, Yandu District is an important part of the new urban area in the southwest of Yancheng and one of the highlands for Yancheng's future development. Yandu District Administrative Center is temporarily located in Xindu Street, Chengnan New District. Today's salt is a highland for the development of emerging industries with initial characteristics and strong momentum. 3. Chengnan New District (Note: Chengnan New District is under the jurisdiction of tinghu district and Yandu District, and there is a management committee in Chengnan New District, which is responsible for the actual operation of Chengnan New District): Chengnan New District of Yancheng City is one of the downtown areas of Yancheng, and it is a new window for Yancheng to show to the outside world. Chengnan New District is the seat of Yancheng Municipal Government. The planned construction scope of Chengnan New District is: Tongyu River in the east, West Ring Road in the west, Qingnian Road in the north and Una Street in the south, with a total area of 102 square kilometers. It is a new city in the south of Yancheng, another city center of Yancheng, echoing the two wings of the old city center of tinghu district. 4. Development Zone (Note: the Development Zone is owned by tinghu district, and the Development Zone has a management committee responsible for the actual operation of the Development Zone): Yancheng Economic Development Zone in Jiangsu Province was established in August 1992, covering an area of 84.72 square kilometers, governing 8 communities and 7 administrative villages, with a permanent population of 54,800. 20 10 was upgraded to a national economic and technological development zone. 5. Dafeng City: Dafeng is located in the eastern coastal open zone of China, belonging to the Shanghai Economic Zone and the Yangtze River Delta region. It has been ranked among the top 100 county economies in China for many times, and its location advantage is very prominent. In recent years, the residents' economy in Dafeng City has sustained development, their comprehensive strength has been significantly enhanced, various reforms have been comprehensively broken through, their development vitality has been stimulated, the project construction has achieved remarkable results, the pace of infrastructure construction has been accelerated, the urban and rural landscape has been significantly improved, social undertakings have been comprehensively developed, and people's quality of life has been comprehensively improved. Dafeng has a national first-class open port-Dafeng Port. With Jiangsu coastal development rising to the national strategy, Dafeng ushered in a rare development opportunity. 6. Dongtai City: Dongtai is located on the central coast of Jiangsu, at the junction of Nantong, Taizhou and Yancheng. Xixi Ancient Town in Dongtai is known as "Pearl of the Yellow Sea and Golden Dongtai", and it is the birthplace of the myth and legend "Immortal Couple", belonging to the coastal economic development zone in the Yangtze River Delta. Ma Pingchuan has a mild and humid climate. It is an excellent tourist city in China, a national ecological demonstration city, a civilized city in Jiangsu Province, one of the safest areas in Jiangsu Province, the city with the most investment value in the Yangtze River Delta in 2008, and the only county-level medium-sized city north of the Yangtze River in Jiangsu Province, ranking among the top 100 counties in China for eleven consecutive years. 7. jianhu county: jianhu county is located in the north-central part of Jiangsu Province, northwest of Yancheng City. Jianhu county is one of the top 100 counties (cities) with basic competitiveness of county economy in China, a civilized county in China, a characteristic industrial base of petroleum equipment planned by the National Torch, a top 100 county with industrial development capacity in China, a top 20 county with the most competitive strategic emerging industries in China, a top county with an industrial transfer investment environment of 10 in China, a top 100 county with the most potential of private economy in China, a top 100 county with economic trademark development in China, a manufacturing base of petroleum equipment in China and an energy-saving electric light source in China. Outstanding contribution award of China petroleum and petrochemical equipment manufacturing industry, financial ecological county (city) district of China, national advanced county in scientific and technological work, national top 100 counties in scientific and technological strength, national advanced county in plain greening, national advanced county in cultural work and national advanced county in sports work. 8. Sheyang County: The county people's government is located in Hede Town. Sheyang county is located in the middle of the coastal areas of central Jiangsu. According to legend, it is the land reclaimed by Jingwei, named after Houyi shooting at the sun. 90% of the world's rare birds, red-crowned cranes, spend the winter in China National Nature Reserve, so Sheyang is also called "Crane Township". Sheyang has excellent location conditions. 1988, Sheyang County was listed as the first batch of coastal open counties by the State Council. Sheyang Port, a national second-class port in the county, has opened container feeder routes such as Shanghai Port, Lianyungang Port and Qingdao Port, and opened international routes such as South Korea, Japan, Hong Kong and Macao. The county seat is 40 kilometers away from Yancheng Airport and 50 kilometers away from Yancheng Station of Xinchang Railway. The graded highway network in the county is perfect, and shenyang-haikou expressway runs through Sheyang. 9. Funing County: Funing County is located in the north of Yanfu Plain in Jiangsu Province. The organizational system of Funing County was established in the 9th year of Qing Yongzheng (173 1). Funing is one of the top 100 counties in new energy industry, grain production, demonstration greening, science and technology, food industry, meat production, spark technology-intensive area and national first-class ecological zone, and won the title of the city with the most investment value invested by Jiangsu businessmen in China. 10, Binhai county: located in the northern Jiangsu plain, northeast of Yancheng, on the coast of the Yellow Sea, facing Japan, 80 kilometers away from Yancheng. It is named after the Yellow Sea in the east. The county government is located in Dongkan Town. Binhai Port in the county is a good deep-water port with the best conditions and the least investment for Jiangsu coastal construction 10- 15-ton wharf. The specialty is Polygonum multiflorum Thunb. Wu Jian sauce wine, coastal sausage and jellyfish silk in Batan Town, Binhai County. 1 1. Xiangshui County: Xiangshui County, Jiangsu Province is located at the junction of Yancheng, Huai 'an and Lianyungang. The county government is located in Xiangshui Town, bordering the Yellow Sea in the east and facing Japan, South Korea and North Korea across the sea. Total area 1378 km2, with a total population of 560,000. Jurisdiction 12 townships and a provincial-level export-oriented agricultural comprehensive development zone. There are eight scenic spots in Xinguan River, and the historic Tiantai Pass has been opened to tourists after renovation. Four-cheeked perch is world-famous, and only the entrance of Songhua River and Guanhekou can be tasted in China.
The climate of Yancheng City belongs to the transition zone from the tropical climate in North Asia to the warm temperate climate in South China. Generally, it is bounded by the main irrigation canal, with the north subtropical climate zone in the south and the south warm temperate climate zone in the north. Because it is adjacent to the Yellow Sea in the east, the ocean regulation is very obvious, and it can also belong to the humid monsoon climate zone. The main features are: prevailing monsoon, four distinct seasons, abundant rainfall, the same season of rain and heat, abundant sunshine and long frost-free period. This climate is not only conducive to the growth of rice, wheat and cotton, but also to the cultivation of oil crops such as soybeans, rapeseed and peanuts, as well as vegetables and fruit trees. It is also beneficial to the cultivation of aquatic products such as fish, crab, shrimp and shellfish. wetland
Yancheng is located in Lixia water network area. The rivers in the urban area are criss-crossed, winding and numerous, and the characteristics of water towns are remarkable, so it is called "the city of hundred rivers". The main rivers flowing through the urban area are Xinyang Port, Python River, Chuanchang River, Picha River, Xiaoyang River and Tongyu River, which are the main ecological water veins and ecological corridors in Yancheng City. As the most important wetland in the city center, Dayang Bay in tinghu district is planning to build a leisure and tourism resort, including Dayang Bay Forest Park and Water Park. After the revision of the new round of urban master plan is completed, Yancheng will be divided into six regions with expressways and major rivers as the boundary, forming a typical urban pattern of water network. Through the development of waterfront and landscape construction, we will increase hydrophilic places, and "people, water and city" will accompany and grow harmoniously. Turning over the topographic map of Jiangsu Province, we can clearly see that Yancheng City is a green plain, with most areas less than 5 meters above sea level, and the abandoned banks of the Yellow River are the highest places with an altitude of 4-6 meters. The area from the south of the main irrigation canal in northern Jiangsu to the north of Doulong Port is a low-lying area with an average elevation below 2 meters. According to genetic differences, the whole territory of Yanfu can be divided into He Lixia Plain, Huanghuai Plain and Binhai Plain.
He Lixia plain area
Located in the south of the main irrigation canal and west of Chuanchang River. The terrain is high in the east and low in the west. The whole He Lixia area is a big dish-shaped depression, but there are some high depressions and several small dish-shaped depressions. Before the Han Dynasty, Yanfu people could grow rice in marshes and beaches. The small "beach" on the west side of Gong Fan levee was a lagoon salt beach in Ming Dynasty, which was covered with reeds and could be used by salt boats. In spring and winter, the beach is bare and becomes farmland after reclamation. During the reign of Kangxi in Qing Dynasty, Anhu used to be Wang Yang, but now it is rich in fertile soil. In order to prevent flood disasters, the industrious people of Yanfu borrow soil from relatively high places to cultivate, build a small highland surrounded by water and plant crops, which can ensure the harvest during drought and flood. Today, He Lixia is rich in products and is one of the famous bases of commodity grain, oil and aquatic products.
Coastal plain area
Located in the south of the main irrigation canal, east of Chuanchang River, until the coast of the Yellow Sea. The formation of the plain here has lasted for 2000-3000 years, and it is still extending into the sea. It is also deposited by sediments carried by the Yellow River and Huaihe River. The whole coastal plain is low and flat, and part of it is a relatively low-lying depression formed by the remains of bays, ancient lagoons and ancient rivers, which are called depressions, swings, beaches and oceans by local residents. Some natural embankments formed by tidal flood are relatively high, which are called ridges, piers and dikes by local residents. At present, the coastal plain is developing into a comprehensive development base of agriculture, forestry, animal husbandry and fishery industry.
Huanghuai plain area
Located in the north of the main irrigation canal, it is formed by the combined alluvial action of Huanghuai, so it is called Huanghuai Plain. Yancheng, located at the end of Huaihe River, was originally the Huaihe River Delta, which was formed by the migration of the Yellow River and Jiangnan, bringing huge amounts of sediment and gradually expanding the delta. Huanghuai Plain is currently being developed and has been listed as a fruit tree and grain production base, which will certainly promote the future economic development of Yancheng City. Yancheng has beautiful rivers and lakes, which bring people the benefits of navigable irrigation and decorate their hometown with enchanting charm. The rivers in the urban area belong to the Huaihe River system and the Yi, Shu and Si water systems, and the area south of the abandoned Yellow River belongs to the Huaihe River system, with a drainage area of 13275 square kilometers, accounting for 9 1.4% of the total area. The abandoned Yellow River and its north belong to the Yishu and Sishui systems, with a drainage area of 1.709 square kilometers, accounting for 8.6% of the total area.
Major lakes
Dazong Lake, also known as the Great Lake (river records of Ming Dynasty) and Taihu Lake (golden mirror of flowing water), is located in the southwest of Yancheng City, at the junction with xinghua city, Taizhou. Because it is located in the north of centipede lake, it is also called Beihu Lake or Houhu Lake. Originally evolved from an ancient lagoon, it was formed before the Southern Song Dynasty. The lakeside is circular, with a length of 6 kilometers from east to west, a width of 5.5 kilometers from north to south, an area of 33 square kilometers, a water depth of 1.5 meters and a storage capacity of 49,500 cubic meters. The main inflow channels are Liyu River and Daxi River in the south and west, and the main discharge channel is Python River in the northeast. There are many fish and aquatic products in the lake, such as carp, crucian carp, grass, green carp, silver carp and bighead carp. Especially for river crabs and river eels, the specialty "Dazong Lake Drunken Crab" is well-known at home and abroad. Sheyang Lake is located in the west of Yancheng City, at the junction of Yangzhou and Huai 'an. There are criss-crossing lakes and water networks here. There are many swings in jianhu county's Jiulongkou, Henderson, yan dan and Madang Town of Funing. Sheyang Lake is the largest lake swing, with an area of 24 square kilometers. The swaying area is covered with reeds, fragrant lotus roots and rich fish and shrimp.
seacoast
Coastal port resources are unique, with a total length of 582 kilometers, accounting for 56% of Jiangsu Province. Sea area 18897 square kilometers, including internal water area 12 144 square kilometers and territorial sea area of 6753 square kilometers. The inshore waters are the only inland waters without red tide in China. The coastal port of Chenjia is 27 nautical miles from Lianyungang and 59 nautical miles from Rizhao Port, with excellent collection and transportation conditions. It is a second-class waterway and a national second-class open port. Dafeng Port is located at 265,438+00 nautical miles north of Qingdao Port, 65,438+020 nautical miles in Lianyungang Port, 460 nautical miles east of Nagasaki Port, 465 nautical miles south of Busan Port, 620 nautical miles in Keelung Port of Taiwan Province Province and 280 nautical miles in Shanghai Port. It has been planned by the state as a first-class port open to the outside world. Binhai Port is located in the central coastal area of Jiangsu, Lianyungang and the Yangtze River estuary, facing Japan and South Korea across the sea. The nearest offshore point of-10/0m isobath is 1.2 15 nautical mile, and the deep water is directly connected to the sea, so a 554.38+10,000-ton wharf berth can be built. It is a port along Dafeng in Jiangsu.
One of the best coasts in deep water. Sheyang Port now has five 1,000-ton wharves, and has opened inland feeder lines for containers, with an annual handling capacity of 5.3 million tons. At present, Sheyang Port has been open to navigation with 24 coastal ports. The advantages of agricultural products resources are outstanding. Yancheng is the largest production base of agricultural and sideline products in Jiangsu. Eight national commodity grain base counties, high-quality oil base counties 1 county, and six high-quality cotton base counties have been built, which are rich in marine and animal and plant resources. The planting scale and total amount of major agricultural products such as grain, cotton, oil, mulberry, fruits and vegetables, poultry, eggs and fish rank first in the province. The certification of pollution-free agricultural products ranks first in the province, and four counties in the city are included in the certification of provincial agricultural products; Through the provincial certification of pollution-free agricultural products, the planting area is 2 12 mu, the animal husbandry area is 87, and the livestock and poultry179,900 heads (only). Five national and provincial agricultural standardization demonstration zones and six provincial export-oriented agricultural production bases will be built. Approved/kloc-2 organic food bases with 0/02,000 mu and 6 green food bases with 22,000 mu. There are 179 products that have won the titles of organic food, green food and pollution-free food in the city.
Edit climate resources in this section.
Yancheng is located in the transitional zone from the tropical climate in North Asia to the warm temperate climate, with the main irrigation canal in northern Jiangsu as the boundary, subtropical climate in the south and temperate monsoon climate in the north, which has transitional characteristics. The climate is greatly influenced by the ocean. Compared with western Jiangsu at the same latitude, the temperature in spring is low and rises late. The temperature drops slowly in autumn and is higher than that in spring. The annual precipitation is also significantly higher than that in the western part of the province. The monsoon climate is obvious, and the winter is affected by the cold air mass in Eurasia, with northerly winds and cold weather; In summer, influenced by the Pacific subtropical high, southerly winds prevail, with hot weather, warm and humid air and abundant rain. The annual total solar radiation of the whole city is 116.2-1210 kcal/cm2, with the maximum in July, August and September and the minimum in1,2 and1February. The average annual illumination time is about 2280 hours, including 25% in spring, 29% in summer, 24% in autumn and 22% in winter. The annual average temperature of thermal energy resources in the city is 13.7℃ ~ 14.5℃, and the extreme maximum temperature in the city is 37.2℃. Precipitation resources The total annual precipitation in the city is 785.2 mm ~ 1309.5 mm, and the total annual rainfall days in the city are 96 days ~ 1 13 days. The annual average wind speed of wind energy resources is 2.8-3.4m/s, with the maximum in spring and the minimum in autumn. If the daily average wind speed ≥ 4m/s is taken as the initial value of wind energy utilization, the annual average number of days with daily average wind speed ≥ 4m/s in the whole city is 63.3- 156.8 days.
Yancheng is the largest provincial city in Jiangsu Province. The total area of the city is 16972 square kilometers, including 7737 square kilometers of cultivated land and more than 2700 square kilometers of rivers and lakes. By 2008, the urban built-up area will be 125 square kilometers. Ocean and tidal flat resources are very rich. The total area of coastal beaches is 4,550 square kilometers (including radial sandbanks), of which the supratidal zone 1.677 square kilometers and the intertidal zone 1.6 10 square kilometers account for 75%, 64.6% and 60.8% of the whole province respectively. It belongs to the coastal beaches of Dongtai, Dafeng, Sheyang, Binhai, Xiangshui and other counties (cities), and the area available for development and utilization in the near future is 1300 square kilometers. At present, the coastal area south of Sheyang Estuary also extends to the sea at the rate of 10 square kilometers per year, which is called "Gold Coast" and is the largest and most potential land reserve resource in Jiangsu. This coastal port has unique resources. Yancheng sea area is located in the middle of Jiangsu coast, with a total coastline of 582 kilometers, accounting for 56% of Jiangsu province. Sea area 18897 square kilometers, including internal water area 12 144 square kilometers and territorial sea area of 6753 square kilometers. The inshore waters are the only inland waters without red tide in China. The coastal port of Chenjia is 27 nautical miles from Lianyungang and 59 nautical miles from Rizhao Port, with excellent collection and transportation conditions. It is a second-class waterway and a national second-class open port. Dafeng Port is located at 265,438+00 nautical miles north of Qingdao Port, 65,438+020 nautical miles in Lianyungang Port, 460 nautical miles east of Nagasaki Port, 465 nautical miles south of Busan Port, 620 nautical miles in Keelung Port of Taiwan Province Province and 280 nautical miles in Shanghai Port. It has been planned by the state as a first-class port open to the outside world. The coastal port is located in the middle of Jiangsu coast, Lianyungang and the Yangtze River estuary, facing Japan and South Korea across the sea. The nearest offshore location of the-10/0m isobath is 1.2 15 nautical mile, and the deep water is directly connected to the sea, which can build a 565,438+10,000-ton wharf berth, making it one of the best coastal sections in Jiangsu Province. Sheyang Port now has five 1,000-ton wharves, and has opened inland feeder lines for containers, with an annual handling capacity of 5.3 million tons. At present, Sheyang Port has been open to navigation with 24 coastal ports. Rich in oil and natural gas resources. The proven oil and gas reserves reach 80 billion cubic meters, and the estimated total reserves reach 200 billion cubic meters. It is the largest onshore oil and gas field in the eastern coastal area of China. There are about 654.38+10,000 square kilometers of Yellow Sea oil storage sedimentary basins along the coast and offshore, ranking second in the national marine oil and gas sedimentary basins, with broad exploration and development prospects. The advantages of agricultural products resources are outstanding. Yancheng is the largest production base of agricultural and sideline products in Jiangsu. Eight national commodity grain base counties, high-quality oil base counties 1 county, and six high-quality cotton base counties have been built, which are rich in marine and animal and plant resources. The planting scale and total amount of major agricultural products such as grain, cotton, oil, mulberry, fruits and vegetables, poultry, eggs and fish rank first in the province. The certification of pollution-free agricultural products ranks first in the province, and four counties in the city are included in the certification of provincial agricultural products; Through the provincial certification of pollution-free agricultural products, the planting area is 2 12 mu, the animal husbandry area is 87, and the livestock and poultry179,900 heads (only). Five national and provincial agricultural standardization demonstration zones and six provincial export-oriented agricultural production bases will be built. Approved/kloc-2 organic food bases with 0/02,000 mu and 6 green food bases with 22,000 mu. There are 179 products that have won the titles of organic food, green food and pollution-free food in the city. Eco-tourism resources are unique. There are more than 40 scenic spots open to the outside world in the city, including provincial cultural protection units 15, 2 3A scenic spots, 2A scenic spots 1, provincial scenic spots 1 and 2 national nature reserves. The eastern part of the city has the largest coastal wetland on the west coast of the Pacific Ocean and the edge of the Asian continent, which has been listed as the world's key wetland protection area, and Yancheng Wetland Ecological National Park is planning to build the "Oriental Wetland Capital". Wetland reserve has the world's first wild elk reserve and national rare bird nature reserve, and is a member of the United Nations Man and Nature Biosphere. At present, there are more than 600 elk populations in Dafeng Wild Elk Reserve, ranking first in the world in terms of total wild population, reproduction rate and survival rate. Yancheng is the birthplace of Huai Opera, and is known as "the hometown of Huai Opera", "the hometown of small operas" and "the hometown of modern operas". There are many famous people and places of interest in history. There are cultural landscapes in the urban area, such as the ancestral temple of Lu Xiufu, Prime Minister of the Southern Song Dynasty, and the former residence of calligrapher Song Cao in the late Ming Dynasty. Baiju Town, Dafeng City is the hometown of Shi Naian, the author of Water Margin. Xixi in Dongtai has the "reading hall" of Fan Zhongyan, the prime minister of the Northern Song Dynasty, and Biancang Town in tinghu district has the "dead peony" planted by Bianji, the prime minister of the Northern Song Dynasty. The hometown of Joe, a famous diplomat in modern times and Hu Qiaomu, a Marxist theorist, is also in Yancheng. Electricity and natural gas are the two main energy sources in Yancheng. Yancheng has power plants such as Yancheng, Binhai and Sheyang Port, with a total installed capacity of 6.5438+0.4 million kilowatts. In addition, Chenjiagang and Wanggang large power plants have been included in the national plan, and by 20 10, the total installed capacity will reach 3 million kilowatts. At present, the city's urban and rural electrification rate has reached 100%. Yancheng natural gas field is the largest onshore oil and gas field in the eastern coastal area, with tight reserves of 2 1000 billion cubic meters and gas-bearing area of about 200 square kilometers. Its quality ranks in the forefront of domestic natural gas, with an average calorific value of 9250 kcal, methane content of 96.7% and no sulfur. The construction and development of Yancheng natural gas field has entered a substantive stage.