The East China Sea, referred to as "East China Sea" for short, is a part of the Sea of China and one of the three marginal seas in China. It starts from the north bank of the Yangtze River estuary in China in the north and reaches Jeju Island in the south, adjacent to the Yellow Sea. It is bounded by Jeju Island, Wudao Islands and Nagasaki in the northeast, Nan 'ao Island in Guangdong Province in the south to the South China Sea at the southern tip of Taiwan Province Province (one is Penghu to Dongshigang in Taiwan Province Province), and Ryukyu Islands in Japan in the east. Islands between Chinese mainland and Taiwan Province Province, Ryukyu Islands and Kyushu Island. Ma Haixia is connected with the Sea of Japan and close to four provinces and cities in China, namely, Shanghai, Zhejiang, Fujian and Taiwan Province. It covers an area of over 770,000 square kilometers. Most of them are continental shelves with water depth below 200 meters. The salinity is 3 1-32‰ and 34‰ in the east. The average temperature of seawater is 9.2℃. In winter, the water temperature in the south is above 20℃. One of the world-famous fishing grounds, it produces large yellow croaker, small yellow croaker, saury and cuttlefish. The whole sea area is between 23 00 ′ ~ 33 ′ north latitude10 ′ and east longitude1171′ ~1310 ′.

One of the three marginal seas in Asia. Chinese mainland in the west, Yellow Sea in the north, Wudao Islands, Kyushu Island, Ryukyu Islands and Taiwan Province Island in China in the northeast to the southern tip of Nagasaki Peninsula, and Taiwan Province Strait in the east to the South China Sea, which is a shallow sea with a relatively open continental margin. It covers an area of 770,000 square kilometers (297,000 square miles) with an average depth of 370 meters. The northwest of the line from Wudao Islands to Taiwan Province Island is basically the continental shelf, and the continental slope and trough are in the southeast of this line. The maximum depth of Okinawa Trough is 2719m, which is the deepest in the East China Sea. Hangzhou Bay is the largest bay in the East China Sea, and the rivers flowing into the East China Sea include the Yangtze River, Qiantang River, Minjiang River, Zhuoshuixi and so on. About 60% of China's coastal islands are located in this area, mainly including Taiwan Province Island, Zhoushan Islands, Penghu Islands and Diaoyutai Islands. There are many islands in the Ryukyu Islands on the eastern edge of the East China Sea. The vast continental shelf in the East China Sea has a flat seabed, excellent water quality, and a variety of water masses meet, which provides good conditions for all kinds of fish to breed, feed and overwinter. It is the most important excellent fishing ground in China, rich in large yellow croaker, small yellow croaker, hairtail and cuttlefish. The fishing ground near Zhoushan Islands is called the treasure house of marine fish in China. [Edit this paragraph] ② "East Sea" or "East Sea of Korea" is the marginal sea of the northwest Pacific Ocean, located between the Korean Peninsula, the Japanese archipelago and the Russian Far East. There have been several different names in history. The Korean nation has called it the East China Sea since ancient times. After the invasion and expansion of modern Japan, it was named "Sea of Japan". In international disputes.

See: South Korea West Sea (Yellow Sea) Corea [Edit this paragraph] ③ East Sea @ Moon

Also known as the Oriental Sea. There is a circular dark plain composed of basalt in the East China Sea basin with multi-layer ring structure on the western edge of the moon. It covers an area of about 50,000 square kilometers (65,438 thousand+0,930 square miles). The most prominent outer ring around the East China Sea Basin in China is the Cordillera Mountains, with a diameter of 900 kilometers (560 miles). Other huge circular structures around the basin include Wailuke Mountain, which is 620 kilometers (385 miles) in diameter; Keshan, Nei Lu, with a diameter of 480 kilometers; The inner ring of the East China Sea is 320 kilometers in diameter. The East China Sea is located on the edge of the moon's surface and can be seen from the earth. We didn't know much about it in the past. 1960s? 6? In the 1970s, scientists were able to observe the appearance and perimeter of the East China Sea in detail due to various lunar explorations by manned spacecraft and unmanned spacecraft. [Edit this paragraph] ④ Donghai County, Lianyungang City, Jiangsu Province, China is located in the northeast of Jiangsu Province, with latitude 3411'-34 44' and longitude18 23'-19 65438+. The county has a total area of 2,250 square kilometers and cultivated land1938,200 mu. It belongs to the plain hilly area on the southeast edge of Huang-Huai-Hai Plain. The terrain is long from east to west and short from north to south. The maximum distance between east and west is 70 kilometers, and the maximum distance between north and south is 54 kilometers. The terrain is high in the west and low in the east. The central and western plains are hilly, the eastern part is flat, and the lake swings into the sea. Donghai county is located in the lower reaches of Huaihe River and Shuhe River. Rivers in the territory belong to the lower reaches of Yihe River and Shuhe River, and the main rivers are Xinshu River, Hu Aishu Xinhe River, Rose River, Hehe River, Shi 'an River and Hehe River 16. Donghai County is one of the "Top 100 Reservoir Counties", and 63 large, medium and small reservoirs have been built, with a total storage capacity of 890 million cubic meters, of which Liang Shi River Reservoir and Anfengshan Reservoir are the first and fourth largest reservoirs in the province respectively. There are 1 tourist resort, 13 town, 8 township and 366 administrative villages in the county. The total population of the county is 6.5438+0.088 million, including 396,000 non-agricultural people, which is one of the counties with large area and large population in Jiangsu Province.

The Spring and Autumn Period was the eastern territory of Lu and the land of praise. Qin Zhiyuan is in yi county, Yishan County and other places. , Ming and Qing dynasties are in Haizhou. In the first year of the Republic of China, Zhangzhou set up a county, and Haizhou Zhili was changed to Donghai County. 1948165438+1October, the whole East China Sea was liberated. 1950 In May, Donghai County and Xinhai City merged to form Xinhai County, and 12 separated in February, belonging to Linyi District, Shandong Province. 1953 1 transferred from Shandong Province to Xuzhou, Jiangsu Province. 1957 moved the county seat from Haizhou to Niu Shan. 1983, the city is in charge of the county, and Donghai county belongs to Lianyungang city. There are paleolithic cultural sites in Daxianzhuang, cliff stone carvings in Fangshan, cliff stone carvings in General, Miyu Spring in Yushan, ancient Han ruins in Quyang and ancient Han tombs in Yinwan, which add a glorious page to the history of the East China Sea. According to legend, Shun Di Deng Yu, Confucius watching the sea and Qin Shihuang's east tour all stopped here. Famous essayist Zhu Ziqing and printmaker Han Yan were born here. The East China Sea is located at the junction of Sulu and Jiangsu provinces, with Qilu and Nanping Jianghuai in the north, and its strategic position is very important. During the Agrarian Revolutionary War, War of Resistance against Japanese Aggression and the War of Liberation, people in the East China Sea made great sacrifices and contributions, and wrote magnificent poems with their blood and lives. Hui Yuyu and others established the Donghai County Party branch in Baihushan, Haizhou, leading and directing the people to win the struggle. Liu Shaoqi, Chen Yi, Su Yu, Gu Mu and other revolutionaries of the older generation all left footprints in the East China Sea.

It borders the Yellow Sea in the east, Suqian in the south, Pengcheng in the west and Qilu in the north. It is the first batch of coastal open counties approved by the State Council, and the first county in the west of the east bridgehead of the New Eurasian Continental Bridge. Located in the national "Land Bridge Economic Belt", "Spark Development Belt" and "Xu Lian Economic Belt", it is an important node along the East Longhai Line, Lianyungang and Xuzhou, one of the three major industrial belts developed in Jiangsu Province. Donghai county has both land, sea and air transportation, and railway, highway, shipping and aviation are very convenient. East Longhai Railway runs across the county, with 5 railway stations and 4 special railway lines. National highways, provincial highways and ordinary highways form a three-dimensional traffic network. The total highway mileage of the county is1769.4km. There are 38 trunk highways and branch highways such as Lianhuo Expressway and Tongshan Expressway, and 3 10/0,204 national highways, 323245 and 236 provincial highways. Roads in counties and townships across the country are fully unblocked. Lianyungang Civil Aviation Airport is located in Baitabu Town, East China Sea, and has opened more than 0 routes 10 to Guangzhou, Beijing and Shanghai. The inland river has 2-class navigation channels, 3-class navigation channels and 5 docks, with a total length of 130 km, which can reach the Yangtze River and the Beijing-Hangzhou Grand Canal. Lianyungang, one of the eight major seaports in China, is only 70 kilometers away from the county seat, with an annual throughput of more than 40 million tons. It has established maritime relations with more than 1000 ports in more than 160 countries and regions in the world, and containers and groceries can go directly to Japan, South Korea, Southeast Asia, Europe and America. The special location advantage and developed transportation network make the East China Sea have strong external radiation ability. To the west, we can rely on the east bridgehead of the new Eurasian continental bridge to radiate deeply to the inland areas; To the south, it can cover vast areas such as northern Jiangsu; To the north, it can radiate Lunan and Jiaodong Peninsula.

Mineral resources are abundant and of high quality. Up to now, 37 kinds of minerals have been discovered and identified, including 29 kinds of nonmetallic minerals. Crystal, timely, serpentine, rutile, dolomite and other large reserves, ranking first in the province or the whole country. The total crystal reserves are 300,000 tons, and the timely reserves are 300 million tons, ranking first in the country in terms of reserves and quality. It is a world-famous "Crystal Capital". Donghai International Jewelry City, built in 2007, is located on the east side of Niu Ben Square and has great influence. The existing "Crystal King" in geological museum belongs to Donghai County, and Chairman Mao's crystal coffin is mainly made of Donghai crystal. In addition, basalt reserves are 65.438+billion tons, and rutile (titanium ore) is one of the large-scale deposits in China.

Agricultural and sideline products are very rich. It is one of the top 100 counties with comprehensive agricultural strength in China and the first batch of 50 commodity grain base counties in China. It is a national model county for greening and an advanced county for economic forest construction. It is also a peanut production base, a lean pig base and a fruit base in Jiangsu Province. The annual output is 900,000 tons of grain, 6,543,800 tons of oil, 6,543,800 tons of melons and vegetables, 60,000 tons of fruits, more than 6,543,800 pigs and 250,000 large livestock.

Tourism resources are unique. Three treasures in the East China Sea: crystal, peanut and hot spring bath. It has four characteristics of "one stone, one water, one lake and one well". "One stone" is the crystal stone. China Crystal Crafts City is the largest distribution center for crystals and their products in China. The 9th China Donghai Crystal Festival was successfully held, and Donghai Crystal brand started in a wider scope. "Yishui" is hot spring water. Donghai Hot Spring is known as "the first hot spring in East China", and the hot spring tourist resort is a well-known tourist attraction. "One Lake", namely Hailing Lake, is the largest artificial reservoir natural scenic spot in Jiangsu Province. "One Well" is a scientific drilling well in Chinese mainland, the first deep well in Asia and the third deep well in the world, and an important base for popular science geological tourism and popular science education. [Edit this paragraph] 5 Donghai City, Aichi Prefecture, Japan See Donghai City, Aichi Prefecture, Aichi Prefecture.

A coastal city of Yi Shi Bay in south-central Honshu. It belongs to Aichi Prefecture, in the northwest corner of Zhiduo Peninsula. The population is 95,000 (1.986). Established in 1969. Coastal reclamation is used to build industrial land, with the iron and steel industry as the center, forming a coastal industrial zone in the south of Nagoya. The steel industry accounts for 82% of the city's industrial output value (1983), and so does the chemical industry. [Edit this paragraph] 6 Donghai City, gangwon, South Korea See: Donghai City, gangwon, Donghai City, gangwon.