Misplaced Pages

#404595

120-637: The 1st China Expeditionary Fleet ( 第一遣支艦隊 , Dai-Ichi Kenshi Kantai ) was reorganized from the 3rd Fleet on 15 November 1939. Their role was the guard of the coast in China at first, however, it changed for the guard in the down stream area of the Yangtze River . Describe 3rd Fleet, 1st China Expeditionary Fleet and successor unit the Yangtze River Area Base Force ( 揚子江方面根拠地隊 , Yōsukō Hōmen Konkyochitai ) in this section. Commanders of

240-758: A 50-foot granite pyramidal obelisk was erected in Xintan, on the site of Captain Plant's home, in a Chinese community of pilots and junk owners. One face of the monument is inscribed in Chinese and another in English. Though recently relocated to higher ground ahead of the Three Gorges Dam, the monument still stands overlooking the Upper Yangtze River near Yichang, a rare collective tribute to a westerner in China. Standard Oil ran

360-628: A capacity of 700 MW, and two plant power generators, each with capacity of 50 MW, for a total of 22,500 MW. Among the 32 main generators, 14 are installed on the dam's north side, 12 on the south side, and the remaining six in the underground power plant in the mountain south of the dam. Annual electricity generation in 2018 was 101.6 TWh, which is 20 times more than the Hoover Dam . The main generators each weigh approximately 6,000 tonnes and are designed to produce more than 700 MW of power each. The designed hydraulic head of

480-742: A dam capable of generating 30 million horsepower (22 GW) was possible downstream of the Three Gorges . In 1932, the Nationalist government , led by Chiang Kai-shek , began preliminary work on plans in the Three Gorges. In 1939, during the Second Sino-Japanese War , Japanese military forces occupied Yichang and surveyed the area. In 1944, the United States Bureau of Reclamation 's head design engineer, John L. Savage , surveyed

600-490: A flat rate of ¥250 per MWh (US$ 35.7) until July 2, 2008. Since then, the price has varied by province, from ¥228.7 to ¥401.8 per MWh. Higher-paying customers, such as Shanghai , receive priority. Nine provinces and two cities consume power from the dam. Power distribution and transmission infrastructure cost about 34.387 billion yuan. Construction was completed in December 2007, one year ahead of schedule. Power

720-494: A fleet until the end of war. The 3rd China Expeditionary Fleet ( 第三遣支艦隊 , Dai-San Kenshi Kantai ) was reorganized from the 4th Fleet on 15 November 1939. The 4th Fleet was reinforcements for 3rd Fleet. Their role was the guard in Bohai Sea . Describe 4th Fleet and 3rd China Expeditionary Fleet in this section. The 3rd China Expeditionary Fleet was specialization to guard unit for Qingdao and become extinct. Commanders of

840-427: A flood in the same area caused billions of dollars worth of damage, when 2,039 km (787 sq mi) of farmland were flooded. The flood affected more than 2.3 million people, killing 1,526. In early August 2009, the largest flood in five years passed through the dam site. During this flood, the dam limited the water flow to less than 40,000 m /s (1.4 million cu ft/s) per second, raising

960-431: A kind of elevator for vessels. The ship lift can lift ships of up to 3,000 tons. The vertical distance traveled is 113 m (371 ft), and the size of the ship lift's basin is 120 m × 18 m × 3.5 m (394 ft × 59 ft × 11 ft). The ship lift takes 30 to 40 minutes to transit, as opposed to the three to four hours for stepping through the locks. One complicating factor

1080-716: A large fleet of warships appeared on the China coast, and with the first cannonball fired at a British ship, the Royal Saxon , the British started the first of the Opium Wars . Royal Navy warships destroyed numerous shore batteries and Chinese warships, laying waste to several coastal forts along the way. Eventually, they pushed their way up north close enough to threaten the Imperial Palace in Beijing itself. The China Navigation Company

1200-515: A new economic belt alongside the river. The Yangtze flows through a wide array of ecosystems and is habitat to several endemic and threatened species, including the Chinese alligator , the narrow-ridged finless porpoise , and also was the home of the now extinct Yangtze river dolphin (or baiji ) and Chinese paddlefish , as well as the Yangtze sturgeon , which is extinct in the wild . In recent years,

1320-470: A swimming craze through party propaganda. In 2002, Danish adventurer and sailor Troels Kløvedal sailed up the Yangtze, from Shanghai to past the Three Gorges Dam, in the collectively owned "Nordkaperen" sailing ship . Kløvedal had spent 12 years preparing and gathering the required permissions, and with a crew of Danes, his family members, a Chinese interpreter and several local maritime pilots , he became

SECTION 10

#1732852267405

1440-477: A total of 198 million tonnes of freight passed through the locks. The freight capacity of the river increased six times and the cost of shipping was reduced by 25%. Originally, the total capacity of the ship locks was expected to reach 100 million tonnes per year. In 2022, their cargo turnover reached 159.65 million tons, with an annual increase of 6% over the past few years. These locks are staircase locks , whereby inner lock gate pairs serve as both

1560-470: Is 181 m (594 ft) high above the rock basis. When the water level is at its maximum of 175 m (574 ft) above sea level, 110 m (361 ft) higher than the river level downstream, the dam reservoir is on average about 660 km (410 mi) in length and 1.12 km (3,675 ft) in width. It contains 39.3 km (31,900,000  acre⋅ft ) of water and has a total surface area of 1,045 km (403 sq mi). On completion,

1680-706: Is also called the Jīng Jiāng ( 荆江 ; 荊江 ) or the "Jing River" after Jingzhou , one of the Nine Provinces of ancient China. In Anhui , the river takes on the local name Wǎn Jiāng after the shorthand name for Anhui, wǎn (皖). Yángzǐ Jiāng ( 揚子江 ; 扬子江 ) or the "Yangzi River", from which the English name Yangtze is derived, is the local name for the Lower Yangtze in the region of Yangzhou . The name likely comes from an ancient ferry crossing called Yángzǐ or Yángzǐjīn ( 揚子 / 揚子津 ). Europeans who arrived in

1800-494: Is an accepted version of this page The Three Gorges Dam ( simplified Chinese : 三峡大坝 ; traditional Chinese : 三峽大壩 ; pinyin : Sānxiá Dàbà ) is a hydroelectric gravity dam that spans the Yangtze River near Sandouping in Yiling District , Yichang , Hubei province, central China, downstream of the Three Gorges . The world's largest power station in terms of installed capacity (22,500  MW ),

1920-529: Is distributed over multiple 500 kV transmission lines. Three direct current (DC) lines to the East China Grid carry 7,200 MW: Three Gorges – Shanghai (3,000 MW), HVDC Three Gorges – Changzhou (3,000 MW), and HVDC Gezhouba – Shanghai (1,200 MW). The alternating current (AC) lines to the Central China Grid have a total capacity of 12,000 MW. The DC transmission line HVDC Three Gorges – Guangdong to

2040-448: Is enough flow, power output is limited by plant generating capacity. The maximum power-output curves were calculated based on the average flow rate at the dam site, assuming the water level is 175 m and the plant gross efficiency is 90.15%. The actual power output in 2008 was obtained based on the monthly electricity sent to the grid. The Three Gorges Dam reached its design-maximum reservoir water level of 175 m (574 ft) for

2160-537: Is home to 6,388 plant species, which belong to 238 families and 1,508 genera. Of these species, 57 are endangered. These rare species are also used as ingredients in traditional Chinese medicines. The proportion of forested area in the region surrounding the Three Gorges Dam dropped from 20% in 1950 to less than 10% as of 2002, adversely affecting all plant species there. The region also provides habitats to hundreds of freshwater and terrestrial animal species. Freshwater fish are especially affected by dams due to changes in

2280-503: Is made up of five stages, with transit time at around four hours. Maximum vessel size is 10,000 tons. The locks are 280 m long, 35 m wide, and 5 m deep (918 × 114 × 16.4 ft). That is 30 m (98 ft) longer than those on the St Lawrence Seaway , but half as deep. Before the dam was constructed, the maximum freight capacity at the Three Gorges site was 18.0 million tonnes per year. From 2004 to 2007,

2400-726: Is the official name for the Yangtze in Mandarin Chinese . However, the Chinese have given different names to the upstream sections of the river up to its confluence with the Min River at Yibin , Sichuan. Jinsha River ("Gold Sands River") refers to the 2,308 km (1,434 mi) of the Yangtze from Yibin upstream to the confluence with the Batang River near Yushu in Qinghai, while the Tongtian River ("River that leads to Heaven") describes

2520-768: The Great Leap Forward and the Cultural Revolution slowed progress. After the 1954 Yangtze River Floods , in 1956, Mao wrote " Swimming ", a poem about his fascination with a dam on the Yangtze River. In 1958, after the Hundred Flowers Campaign , some engineers who spoke out against the project were imprisoned. During China's emphasis on the Four Modernizations during its early period of Reform and Opening Up , The Communist Party revived plans for

SECTION 20

#1732852267405

2640-543: The Han River , bringing water from its northern basin as far as Shaanxi . At the northern tip of Jiangxi province, Lake Poyang , the biggest freshwater lake in China, merges into the river. The river then runs through Anhui and Jiangsu , receiving more water from innumerable smaller lakes and rivers, and finally reaches the East China Sea at Shanghai. Four of China's five main freshwater lakes contribute their waters to

2760-572: The Han dynasty , the region of the Yangtze River grew ever more important to China's economy. The establishment of irrigation systems (the most famous one is Dujiangyan , northwest of Chengdu, built during the Warring States period) made agriculture very stable and productive, eventually exceeding even the Yellow River region. The Qin and Han empires were actively engaged in the agricultural colonization of

2880-703: The Jiangnan region south of the river ( Wuxi , Suzhou , Hangzhou ) and with northern China (all the way from Yangzhou to Beijing). The less well known ancient Lingqu Canal , connecting the upper Xiang River with the headwaters of the Guijiang , allowed a direct water connection from the Yangtze Basin to the Pearl River Delta . Historically, the Yangtze was the political boundary between north China and south China several times (see History of China ) because crossing

3000-542: The Jingguang Railway was out of service for more than 100 days. The 1954 flood carried 50 cubic kilometres (12 cu mi) of water. The dam could only divert the water above Chenglingji, leaving 30 to 40 km (7.2 to 9.6 cu mi) to be diverted. The dam cannot protect against some of the large tributaries downstream, including the Xiang , Zishui , Yuanshui , Lishui , Hanshui , and Gan . In 1998,

3120-471: The Middle Chinese pronunciation of 江 as Kæwng . By the mid-19th century, these romanizations had standardized as Kiang ; Dajiang , e.g., was rendered as "Ta-Kiang." "Keeang-Koo," "Kyang Kew," "Kian-ku," and related names derived from mistaking the Chinese term for the mouth of the Yangtze ( 江口 , p   Jiāngkǒu ) as the name of the river itself. The name Blue River began to be applied in

3240-468: The Ministry of Environmental Protection , as of April 2007, more than 50 new plants could treat 1.84 million tonnes per day, 65% of the total need. About 32 landfills were added, which could handle 7,664.5 tonnes of solid waste every day. Over one billion tons of wastewater are released annually into the river, which was more likely to be swept away before the reservoir was created. This has left

3360-469: The National Development and Reform Commission , 366 grams of coal would produce 1 kWh of electricity during 2006. From 2003 to 2007, power production equaled that of 84 million tonnes of standard coal. Two hazards are uniquely identified with the dam: that sedimentation projections are not agreed upon, and that the dam sits on a seismic fault . At current levels, 80% of the land in

3480-666: The Shanghai concessions subsequently turned it into a backwater, Yangzhou was the lower river's principal port for much of the Qing dynasty , directing Liangjiang 's important salt monopoly and connecting the Yangtze with the Grand Canal to Beijing. (That connection also made it one of the Yellow River 's principal ports between the floods of 1344 and the 1850s, during which time the Yellow River ran well south of Shandong and discharged into

3600-547: The Spring and Autumn period 's Five Hegemons and one of the Warring States ' Four Lords . They fell in against themselves, however. Chu's growing power led its rival Jin to support Wu as a counter. Wu successfully sacked Chu's capital Ying in 506 BC, but Chu subsequently supported Yue in its attacks against Wu's southern flank. In 473 BC, King Goujian of Yue fully annexed Wu and moved his court to its eponymous capital at modern Suzhou. In 333 BC, Chu finally united

3720-580: The Tibetan Plateau , two of which are commonly referred to as the "source." Traditionally, the Chinese government has recognized the source as the Tuotuo tributary at the base of a glacier lying on the west of Geladandong Mountain in the Tanggula Mountains . This source is found at 33°25′44″N 91°10′57″E  /  33.42889°N 91.18250°E  / 33.42889; 91.18250 and while not

China Area Fleet - Misplaced Pages Continue

3840-485: The Yangtze River Delta region applied this local name to the whole river. The dividing site between upstream and midstream is considered to be at Yichang and that between midstream and downstream at Hukou ( Jiujiang ). The river was called Quian ( 江 ) and Quianshui ( 江水 ) by Marco Polo and appeared on the earliest English maps as Kian or Kiam , all recording dialects which preserved forms of

3960-607: The Yue . Similar to *krong in Proto-Vietnamese and krung in Mon , all meaning "river", it is related to modern Vietnamese sông (river) and Khmer krung (city on riverside), whence Thai krung (กรุง capital city), not kôngkea (water) which is from the Sanskrit root gáṅgā . By the Han dynasty , Jiāng had come to mean any river in Chinese, and this river was distinguished as

4080-506: The "Great River" 大江 ( Dàjiāng ). The epithet 長 ( simplified version 长 ), meaning "long", was first formally applied to the river during the Six Dynasties period. Various sections of the Yangtze have local names. From Yibin to Yichang , the river through Sichuan and Chongqing Municipality is also known as the Chuān Jiāng ( 川江 ) or " Sichuan River ". In Hubei , the river

4200-460: The 18th century, apparently owing to a former name of the Dam Chu or Min and to analogy with the Yellow River , but it was frequently explained in early English references as a 'translation' of Jiang , Jiangkou , or Yangzijiang . Very common in 18th- and 19th-century sources, the name fell out of favor due to growing awareness of its lack of any connection to the river's Chinese names and to

4320-481: The 1990s. This is largely due to China's large reforestation effort . This accelerated after the 1998 Yangtze River floods convinced the government that it should restore tree cover, especially in the Yangtze's basin upstream of the Three Gorges Dam. Concerns about the dam's impact on wildlife predate the National People's Congress's approval in 1992. This region has long been known for its rich biodiversity. It

4440-418: The 3rd Fleet Commander in chief 1st China Expeditionary Fleet and commander (Yangtze River Area Base Force) The 2nd China Expeditionary Fleet ( 第二遣支艦隊 , Dai-Ni Kenshi Kantai ) was reorganized from the 5th Fleet on 15 November 1939. The 5th Fleet was reinforcements for 3rd Fleet and 4th Fleet. Their role was the guard and invasion of South China. The 2nd China Expeditionary Fleet kept appearance of

4560-602: The 3rd millennium BC, the successor Liangzhu culture showed evidence of influence from the Longshan peoples of the North China Plain . What is now thought of as Chinese culture developed along the more fertile Yellow River basin; the " Yue " people of the lower Yangtze possessed very different traditions – blackening their teeth , cutting their hair short , tattooing their bodies, and living in small settlements among bamboo groves – and were considered barbarous by

4680-803: The 4th Fleet Commanders of the 3rd China Expeditionary Fleet Describe about pre-China Area Fleet in this section. The Southern Qing Fleet, China Expeditionary Fleet, 1st Expeditionary Fleet and 2nd Expeditionary Fleet were ancestor of China Area Fleet. The Southern Qing Fleet ( 南清艦隊 , Nanshin Kantai ) was organized after the Russo-Japanese War . They were reinforced by Xinhai Revolution in 1911, however, Beiyang Government declared neutrality in World War I . All gunboats were detained, and Southern Qing Fleet became extinct before long. The 1st Expeditionary Fleet ( 第一遣外艦隊 , Dai-Ichi Kengai Kantai )

4800-655: The 813 km (505 mi) section from Yushu up to the confluence of the Tuotuo River and the Dangqu River . In Old Chinese , the Yangtze was simply called Jiang/Kiang 江 , a character of phono-semantic compound origin, combining the water radical 氵 with the homophone 工 (now pronounced gōng , but *kˤoŋ in Old Chinese ). Kong was probably a word in the Austroasiatic language of local peoples such as

4920-557: The 9th century BC. Traditional accounts credit these changes to northern refugees ( Taibo and Zhongyong in Wu and Wuyi in Yue) who assumed power over the local tribes, though these are generally assumed to be myths invented to legitimate them to other Zhou rulers. As the kingdoms of Wu and Yue , they were famed as fishers, shipwrights, and sword-smiths. Adopting Chinese characters , political institutions, and military technology, they were among

China Area Fleet - Misplaced Pages Continue

5040-600: The Chinese government to make the river safer in 1917 by removing some of the most difficult obstacles and threats with explosives. In August 1917, British Asiatic Petroleum became the first foreign merchant steamship on the Upper Yangtze. Commercial firms, Robert Dollar Company, Jardine Matheson , Butterfield and Swire and Standard Oil added their own steamers on the river between 1917 and 1919. Between 1918 and 1919, Sichuan warlord violence and escalating civil war put Sichuan Steam Navigational Company out of business. Shutung

5160-458: The South China Grid has a capacity of 3,000 MW. The dam was expected to provide 10% of China's power. However, electricity demand has increased more quickly than previously projected. Even fully operational and despite its size, on average, it supported only about 1.7% of electricity demand in China in the year of 2011, when the Chinese electricity demand reached 4,692.8 TWh. According to

5280-595: The Three Gorges Dam Construction Fund, profits from the Gezhouba Dam , loans from the China Development Bank , loans from domestic and foreign commercial banks, corporate bonds , and revenue from both before and after the dam had become fully operational. Additional charges were assessed as follows: every province receiving power from the Three Gorges Dam had to pay an extra ¥7.00 per MWh, and

5400-452: The Three Gorges Dam directly caused the extinction of the baiji. Of the 3,000 to 4,000 remaining critically endangered Siberian crane , many spend the winter in wetlands that the Three Gorges Dam will destroy. Populations of the Yangtze sturgeon are guaranteed to be "negatively affected" by the dam. In 2022 the Chinese paddlefish was declared extinct, with the last confirmed sighting in 2003. In 2005, NASA scientists calculated that

5520-442: The Three Gorges Dam generates 95±20  TWh of electricity per year on average, depending on the amount of precipitation in the river basin. After the extensive monsoon rainfalls of 2020, the dam's annual production reached nearly 112 TWh, breaking the previous world record of ~103 TWh set by Itaipu Dam in 2016. The dam's body was completed in 2006; the power plant was completed and fully operational by 2012, when

5640-500: The Tibetan Plateau and flows 6,300 km (3,915 mi) in a generally easterly direction to the East China Sea . It is the fifth-largest primary river by discharge volume in the world . Its drainage basin comprises one-fifth of the land area of China , and is home to nearly one-third of the country's population . The Yangtze has played a major role in the history , culture , and economy of China . For thousands of years,

5760-544: The Upper Yangtze on Leechuan at the end of 1898. With Plant's design input, Little had SS Pioneer built with Plant in command. In June 1900, Plant was the first to successfully pilot a merchant steamer on the Upper Yangtze from Yichang to Chongqing. Pioneer was sold to Royal Navy after its first run due to threat from the Boxer Rebellion and renamed HMS Kinsha . Germany's steamship effort that same year on SS Suixing ended in catastrophe. On Suixing's maiden voyage,

5880-488: The Yangtze River. Traditionally, the upstream part of the Yangtze River refers to the section from Yibin to Yichang; the middle part refers to the section from Yichang to Hukou County , where Lake Poyang meets the river; the downstream part is from Hukou to Shanghai. The origin of the Yangtze River has been dated by some geologists to about 45 million years ago in the Eocene , but this dating has been disputed. Although

6000-561: The Yangtze are located in ethnic Tibetan areas of Qinghai . In Tibetan, the Tuotuo headwaters are the Machu ( Tibetan : རྨ་ཆུ་ , Wylie : rma-chu , lit. "Red Water"). The Tongtian is the Drichu ( འབྲི་ཆུ་ , ‘Bri Chu’), literally "Water of the Female Yak "; transliterated into Chinese : 直曲 ; pinyin : Zhíqū ). The river originates from several tributaries in the eastern part of

6120-509: The Yangtze lowlands, maintaining a system of dikes to protect farmland from seasonal floods. By the Song dynasty, the area along the Yangtze had become among the wealthiest and most developed parts of the country, especially in the lower reaches of the river. Early in the Qing dynasty, the region called Jiangnan (that includes the southern part of Jiangsu , the northern part of Zhejiang and Jiangxi , and

SECTION 50

#1732852267405

6240-726: The aftermath of the disaster. The 1998 Yangtze River floods were a series of major floods that lasted from middle of June to the beginning of September 1998 along the Yangtze. In the summer of 1998, China experienced massive flooding of parts of the Yangtze River , resulting in 3,704 dead, 15 million homeless and $ 26 billion in economic loss. Other sources report a total loss of 4150 people, and 180 million people were affected. A staggering 25 million acres (100,000 km ) were evacuated, 13.3 million houses were damaged or destroyed. The floods caused $ 26 billion in damages. The 2016 China floods caused US$ 22 billion in damages. Three Gorges Dam This

6360-466: The area and drew up a dam proposal for a "Yangtze River Project". Some 54 Chinese engineers went to the US for training. The original plans called for the dam to employ a unique method for moving ships: the ships would enter locks at the dam's lower and upper ends and then cranes would move them from each lock to the next. Groups of craft would be lifted together for efficiency. It is not known whether this solution

6480-433: The area is eroding, depositing about 40 million tons of sediment into the Yangtze annually. Because the flow is slower above the dam, much of this sediment settles there instead of flowing downstream, and there is less sediment downstream. The absence of silt downstream has three effects: Erosion in the reservoir, induced by rising water, causes frequent major landslides that have led to noticeable disturbance in

6600-560: The course of the dry season. During the South China floods in July 2010 , inflows at the Three Gorges Dam reached a peak of 70,000 m /s (2.5 million cu ft/s), exceeding the peak inflow during the 1998 Yangtze River floods . The dam's reservoir rose nearly 3 m (9.8 ft) in 24 hours and reduced the outflow to 40,000 m /s (1.4 million cu ft/s) in discharges downstream, preventing any significant impact on

6720-404: The course of the present Red River . The Yangtze River is important to the cultural origins of southern China and Japan. Human activity has been verified in the Three Gorges area as far back as 27,000 years ago, and by the 5th millennium BC, the lower Yangtze was a major population center occupied by the Hemudu and Majiabang cultures , both among the earliest cultivators of rice. By

6840-466: The dam and proposed to start construction in 1986. It emphasized the need to develop hydroelectric power. The Chinese People's Political Consultative Conference became a center of opposition to the proposed dam. It convened panels of experts who recommended delaying the project. The National People's Congress approved the dam in 1992: of 2,633 delegates, 1,767 voted in favour, 177 voted against, 664 abstained, and 25 members did not vote, giving

6960-422: The dam generated an average of 97.22 TWh of electricity per year, higher than Itaipu dam's average of 89.22 TWh of electricity per year during the same period. Due to the extensive 2020 monsoon season rainfall, the annual production reached ~112 TWh that year, which broke the previous world record of annual production by Itaipu Dam equal to ~103 TWh. The State Grid Corporation and China Southern Power Grid paid

7080-484: The dam is to control flooding, which is a major problem for the seasonal river of the Yangtze. Millions of people live downstream of the dam, with many large, important cities like Wuhan , Nanjing , and Shanghai located adjacent to the river. Large areas of farmland and China's most important industrial area are situated beside the river. The reservoir's flood storage capacity is 22 km (5.3  cu mi ; 18 million  acre⋅ft ). This capacity will reduce

7200-549: The deadliest natural disasters ever recorded, and almost certainly the deadliest of the 20th century (when pandemics and famines are discounted). Estimates of the total death toll range from 145,000 to between 3.7 million and 4 million. The Yangtze flooded again in 1935 , causing great loss of life. From June to September 1954, the Yangtze River Floods were a series of catastrophic floodings that occurred mostly in Hubei Province. Due to unusually high volume of precipitation as well as an extraordinarily long rainy season in

7320-512: The designed maximum level of 175 m (574 ft) by 2010. Made of concrete and steel, the dam is 2,335 m (2,554 yd; 1.451 mi) long and 185 m (607 ft) above sea level at its top. The project used 27.2 million m (35.6 million cu yd) of concrete (mainly for the dam wall), used 463,000 tonnes of steel (enough to build 63 Eiffel Towers ), and moved about 102.6 million m (134.2 million cu yd) of earth. The concrete dam wall

SECTION 60

#1732852267405

7440-400: The famous Three Gorges . Eastward of the Three Gorges, Yichang is the first city on the Yangtze Plain . After entering Hubei province, the Yangtze receives water from a number of lakes. The largest of these lakes is Dongting Lake , which is located on the border of Hunan and Hubei provinces, and is the outlet for most of the rivers in Hunan. At Wuhan , it receives its biggest tributary,

7560-430: The first foreigner since 1949 to navigate the Yangtze. His months-long journey was documented both in his 2004 book "Kineserne syr med lang tråd" and the TV show "Kløvedal i Kina" by DR . In August 2019, Welsh adventurer Ash Dykes became the first person to complete the 4,000-mile (6,400 km) trek along the course of the river, walking for 352 days from its source to its mouth. Tens of millions of people live in

7680-445: The first time on October 26, 2010, in which the intended annual power-generation capacity of 84.7 TWh was realized. It has a combined generating capacity of 22.5 gigawatts and a designed annual generation capacity of 88.2 TWh. In 2012, the dam's 32 generating units generated a record 98.1 TWh of electricity, which accounts for 14% of China's total hydro generation. Between 2012 (first year with all 32 generating units operating) and 2021,

7800-433: The floodplain of the Yangtze valley, an area that naturally floods every summer and is habitable only because it is protected by river dikes. The floods large enough to overflow the dikes have caused great distress to those who live and farm there. Floods of note include those of 1931, 1954, and 1998. The 1931 Central China floods or the Central China floods of 1931 were a series of floods that are generally considered among

7920-420: The frequency of major downstream flooding from once every 10 years to once every 100 years. The dam is expected to minimize the effect of even a "super" flood. The river flooded in 1954 over an area of 193,000 km (74,500 sq mi), killing 33,169 people and forcing almost 18.9 million people to move. The flood waters covered Wuhan, a city of eight million people, for over three months, and

8040-648: The furthest source of the Yangtze, it is the highest source at 5,342 m (17,526 ft) above sea level. The true source of the Yangtze, hydrologically the longest river distance from the sea, is at Jari Hill at the head of the Dam Qu tributary, approximately 325 km (202 mi) southeast of Geladandong. This source was only discovered in the late 20th century and lies in wetlands at 32°36′14″N 94°30′44″E  /  32.60389°N 94.51222°E  / 32.60389; 94.51222 and 5,170 m (16,960 ft) above sea level just southeast of Chadan Township in Zadoi County , Yushu Prefecture , Qinghai. As

8160-402: The generator rotors have 80 poles. Rated power is 778 MVA , with a maximum of 840 MVA and a power factor of 0.9. The generator produces electrical power at 20  kV . The electricity generated is then stepped up to 500 kV for transmission at 50 Hz. The generator's stator , the biggest of its kind, is 3.1/3 m in height; the outer diameter of the stator is 21.4/20.9 m,

8280-454: The generators is 80.6 metres (264 ft). The flow rate varies between 600–950 cubic metres per second (21,000–34,000 cu ft/s) depending on the head available; the greater the head, the less water needed to reach full power. Three Gorges uses Francis turbines with a diameter of 9.7/10.4 m (VGS design/Alstom's design) and a rotation speed of 75 revolutions per minute. This means that in order to generate power at 50  Hz ,

8400-399: The historical spiritual source of the Yangtze, the Geladandong source is still commonly referred to as the source of the Yangtze since the discovery of the Jari Hill source. These tributaries join and the river then runs eastward through Qinghai (Tsinghai), turning southward down a deep valley at the border of Sichuan (Szechwan) and Tibet to reach Yunnan . In the course of this valley,

8520-425: The inner diameter is 18.5/18.8 m, and the bearing load is 5,050/5,500 tonnes. Average efficiency is over 94%, with a maximum efficiency of 96.5% reached. The generators were manufactured by two joint ventures: Alstom , ABB , Kvaerner , and the Chinese company Harbin Motor; and Voith , General Electric , Siemens (abbreviated as VGS), and the Chinese company Oriental Motor. The technology transfer agreement

8640-479: The irony of its application to such a muddy waterway. Matteo Ricci 's 1615 Latin account included descriptions of the "Ianſu" and "Ianſuchian." The posthumous account's translation of the name as Fils de la Mer ("Son of the Ocean") shows that Ricci, who by the end of his life was fluent in literary Chinese, was introduced to it as the homophonic 洋子江 rather than the usual 揚子江 . Further, although railroads and

8760-472: The last main generator (No. 27) finished its final test on May 23, 2012, the six underground main generators were all operational, raising the capacity to 22.5 GW. After nine years of construction, installation and testing, the power plant was fully operational by July 2012. By August 16, 2011, the plant had generated 500 TWh of electricity. In July 2008 it generated 10.3 TWh of electricity, its first month over 10 TWh. On June 30, 2009, after

8880-401: The last of the main water turbines in the underground plant began production. Each of the main water turbines has a capacity of 700 MW. Combining the capacity of the dam's 32 main turbines with the two smaller generators (50 MW each) that provide power to the plant itself, the total electric generating capacity of the Three Gorges Dam is 22,500 MW. The last major component of

9000-435: The legislation an unusually low 67.75% approval rate. Construction started on December 14, 1994. The dam was expected to be fully operational in 2009, but additional projects, such as the underground power plant with six additional generators, delayed full operation until 2012. The ship lift was completed in 2015. The dam raised the water level in the reservoir to 172.5 m (566 ft) above sea level by 2008 and to

9120-519: The lower Yangtze by annexing Yue, whose royal family was said to have fled south and established the Minyue kingdom in Fujian . Qin was able to unite China by first subduing Ba and Shu on the upper Yangtze in modern Sichuan , giving them a strong base to attack Chu's settlements along the river. The state of Qin conquered the central Yangtze region, the previous heartland of Chu, in 278 BC, and incorporated

9240-503: The middle and lower river. The installation of ship locks is intended to increase river shipping from ten million to 100 million tonnes annually; as a result transportation costs will be cut between 30 and 37%. Shipping will become safer, since the gorges are notoriously dangerous to navigate. There are two series of ship locks installed near the dam ( 30°50′12″N 111°1′10″E  /  30.83667°N 111.01944°E  / 30.83667; 111.01944 ). Each of them

9360-549: The middle stretch of the Yangtze River late in the spring of 1954, the river started to rise above its usual level in around late June. Despite efforts to open three important flood gates to alleviate the rising water by diverting it, the flood level continued to rise until it hit the historic high of 44.67 m in Jingzhou, Hubei and 29.73 m in Wuhan. The number of dead from this flood was estimated at 33,000, including those who died of plague in

9480-442: The most powerful states during the later Zhou . In the middle Yangtze, the state of Jing seems to have begun in the upper Han River valley a minor Zhou polity, but it adapted to native culture as it expanded south and east into the Yangtze valley. In the process, it changed its name to Chu . Whether native or nativizing, the Yangtze states held their own against the northern Chinese homeland: some lists credit them with three of

9600-562: The most risky and deadly sections of the three gorges. Archibald John Little took an interest in Upper Yangtze navigation when in 1876, the Chefoo Convention opened Chongqing to consular residence but stipulated that foreign trade might only commence once steamships had succeeded in ascending the river to that point. Little formed the Upper Yangtze Steam Navigation Co., Ltd. and built Kuling but his attempts to take

9720-500: The mouth of the Yellow River has fluctuated widely north and south of the Shandong peninsula within the historical record, the Yangtze has remained largely static. Based on studies of sedimentation rates , however, it is unlikely that the present discharge site predates the late Miocene ( c.  11 Ma ). Prior to this, its headwaters drained south into the Gulf of Tonkin along or near

9840-657: The northerners. The Central Yangtze valley was home to sophisticated Neolithic cultures. Later it became the earliest part of the Yangtze valley to be integrated into the North Chinese cultural sphere. (Northern Chinese were active there since the Bronze Age ). In the lower Yangtze, two Yue tribes, the Gouwu in southern Jiangsu and the Yuyue in northern Zhejiang , display increasing Zhou (i.e., North Chinese) influence starting in

9960-522: The ocean a mere few hundred kilometers from the mouth of the Yangtze. ) By 1800, English cartographers such as Aaron Arrowsmith had adopted the French style of the name as Yang-tse or Yang-tse Kiang . The British diplomat Thomas Wade emended this to Yang-tzu Chiang as part of his formerly popular romanization of Chinese , based on the Beijing dialect instead of Nanjing's and first published in 1867. The spellings Yangtze and Yangtze Kiang

10080-499: The other provinces had to pay an additional charge of ¥4.00 per MWh. No surcharge was imposed on the Tibet Autonomous Region . Power generation is managed by China Yangtze Power , a listed subsidiary of China Three Gorges Corporation (CTGC), a Central Enterprise administered by SASAC . The Three Gorges Dam is the world's largest capacity hydroelectric power station, with 34 generators: 32 main generators, each with

10200-616: The periods 1911–12, 1927–37, and 1945–49. The Jardine , the first steamship to sail the river, was built for Jardine, Matheson & Co. in 1835. This small vessel was to carry passengers and mail between Lintin Island , Macao , and Huangpu . However, the Chinese, draconian in their application of the rules relating to foreign vessels, were unhappy about a "fire-ship" steaming up the Canton River. The acting Viceroy of Liangguang issued an edict warning that she would be fired on if she attempted

10320-532: The project as a monumental social and economical success, with the design of state-of-the-art large turbines and a move toward limiting greenhouse gas emissions . However, the dam has led to some ecological changes, including an increased risk of landslides, which have made it controversial domestically and abroad. Sun Yat-sen envisioned a large dam across the Yangtze River in The International Development of China (1919). He wrote that

10440-464: The project, the ship lift, was completed in 2015. In addition to generating electricity, the dam was designed to increase the Yangtze River's shipping capacity. By providing flood storage space, the dam reduces the potential for flooding downstream, which historically plagued the Yangtze Plain . In 1931, floods on the river caused the deaths of up to 4 million people. As a result, China regards

10560-516: The region into its expanding empire. Qin then used its connections along the Xiang River to expand into Hunan , Jiangxi and Guangdong , setting up military commanderies along the main lines of communication. At the collapse of the Qin Dynasty , these southern commanderies became the independent Nanyue Empire under Zhao Tuo while Chu and Han vied with each other for control of the north. Since

10680-579: The reservoir flooded a total area of 632 km (156,000 acres) of land, compared to the 1,350 km (330,000 acres) of reservoir created by the Itaipu Dam . The Chinese government estimated that the Three Gorges Dam project would cost 180 billion yuan (US$ 22.5 billion). By the end of 2008, spending had reached 148.365 billion yuan, of which 64.613 billion yuan was spent on construction, 68.557 billion yuan on relocating affected residents, and 15.195 billion yuan on financing. It

10800-503: The reservoir surface, including two incidents in May 2009 when somewhere between 20,000 and 50,000 cubic metres (26,000 and 65,000 cu yd) of material plunged into the flooded Wuxia Gorge of the Wu River . In the first four months of 2010, there were 97 significant landslides. The dam catalyzed improved upstream wastewater treatment around Chongqing and its suburban areas. According to

10920-458: The river downstream, providing fresh water for agricultural and industrial usage, and improving shipping conditions. The water level upstream drops from 175 to 145 m (574 to 476 ft), in preparation for the rainy season. The water also powers the Gezhouba Dam downstream. Since the filling of the reservoir in 2003, the Three Gorges Dam has supplied an extra 11 km (2.6 cu mi) of fresh water to downstream cities and farms over

11040-470: The river flow rate increased to over 24,000 m /s, all 28 generators were switched on, producing only 16,100 MW because the head available during flood season is insufficient. During an August 2009 flood, the plant first reached its maximum output for a short period. During the November to May dry season, power output is limited by the river's flow rate, as seen in the diagrams on the right. When there

11160-497: The river has been used for water, irrigation, sanitation, transportation, industry, boundary-marking, and war. The Yangtze Delta generates as much as 20% of China's GDP , and the Three Gorges Dam on the Yangtze is the largest hydro-electric power station in the world that is in use . In mid-2014, the Chinese government announced it was building a multi-tier transport network , comprising railways, roads and airports to create

11280-537: The river has suffered from industrial pollution, plastic pollution , agricultural runoff , siltation , and loss of wetland and lakes, which exacerbates seasonal flooding. Some sections of the river are now protected as nature reserves . A stretch of the upstream Yangtze flowing through deep gorges in western Yunnan is part of the Three Parallel Rivers of Yunnan Protected Areas , a UNESCO World Heritage Site . Cháng Jiāng ( 长江 ; 長江 ) or " Long River "

11400-712: The river was difficult. This occurred notably during the Southern and Northern Dynasties , and the Southern Song . Many battles took place along the river, the most famous being the Battle of Red Cliffs in 208 AD during the Three Kingdoms period. The Yangtze was the site of naval battles between the Song dynasty and Jurchen Jin during the Jin–Song wars . In the Battle of Caishi of 1161,

11520-525: The river's elevation drops from above 5,000 m (16,000 ft) to less than 1,000 m (3,300 ft). Thus, over the first 2,600 km (1,600 mi) of its length, the river has fallen more than 5,200 m (17,100 ft). It enters the basin of Sichuan at Yibin . While in the Sichuan basin, it receives several large tributaries, increasing its water volume significantly. It then cuts through Mount Wushan bordering Chongqing and Hubei to create

11640-691: The run and by 1915, foreign ships expressed their interest too. Plant was appointed by Chinese Maritime Customs Service as First Senior River Inspector in 1915. In this role, Plant installed navigational marks and established signaling systems. He also wrote Handbook for the Guidance of Shipmasters on the Ichang-Chungking Section of the Yangtze River , a detailed and illustrated account of the Upper Yangtze's currents, rocks, and other hazards with navigational instruction. Plant trained hundreds of Chinese and foreign pilots and issued licenses and worked with

11760-527: The shift of water mass stored by the dams would increase the total length of the Earth 's day by 0.06 microseconds and make the Earth slightly more round in the middle and flat on the poles . A study published in 2022 in the journal Open Geosciences suggests that the change of reservoir water level affects the gravity field in western Sichuan, which in turn affects the seismicity in that area. An important function of

11880-502: The ships of the Jin emperor Wanyan Liang clashed with the Song fleet on the Yangtze. Song soldiers fired bombs of lime and sulfur using trebuchets at the Jurchen warships. The battle was a Song victory that halted the invasion by the Jin. The Battle of Tangdao was another Yangtze naval battle in the same year. Politically, Nanjing was the capital of China several times, although most of

12000-408: The southeastern part of Anhui ) provided 1 ⁄ 3 – 1 ⁄ 2 of the nation's revenues. The Yangtze has long been the backbone of China's inland water transportation system, which remained particularly important for almost two thousand years, until the construction of the national railway network during the 20th century. The Grand Canal connects the lower Yangtze with the major cities of

12120-536: The tankers Mei Ping, Mei An and Mei Hsia, which were collectively destroyed on December 12, 1937, when Japanese warplanes bombed and sank the U.S.S. Panay. One of the Standard Oil captains who survived this attack had served on the Upper River for 14 years. Chinese Communist Party chairman Mao Zedong took staged swims in the river in 1956 and 1966 at Wuhan in publicity stunts to demonstrate his health, also starting

12240-672: The time its territory only covered the southeastern part of China, such as the Wu kingdom in the Three Kingdoms period, the Eastern Jin Dynasty , and during the Southern and Northern Dynasties and Five Dynasties and Ten Kingdoms periods. Only the Ming occupied most parts of China from their capital at Nanjing , though it later moved the capital to Beijing. The ROC capital was located in Nanjing in

12360-623: The trip. On the Jardine's first trial run from Lintin Island the forts on both sides of the Bogue opened fire and she was forced to turn back. The Chinese authorities issued a further warning insisting that the ship leave Chinese waters. The Jardine in any case needed repairs and was sent to Singapore . Subsequently, Lord Palmerston , the Foreign Secretary decided mainly on the "suggestions" of William Jardine to declare war on China. In mid-1840,

12480-399: The upper gate of the chamber below and the lower gate of the chamber above. The gates are the vulnerable hinged type, which, if damaged, could temporarily render the entire flight unusable. As there are separate sets of locks for upstream and downstream traffic, this system is more water efficient than bi-directional staircase locks. In addition to the canal locks, there is a ship lift ,

12600-415: The upstream water level from 145.13 m (476.1 ft) on August 1, to 152.88 m (501.6 ft) on August 8. A full 4.27 km (1.02 cu mi) of flood water was captured and the river flow was cut by as much as 15,000 m (530,000 cu ft) per second. The dam discharges its reservoir during the dry season every year, between December and March. This increases the flow rate of

12720-420: The vessel further upriver than Yichang were thwarted by the Chinese authorities who were concerned about the potential loss of transit duties, competition to their native junk trade and physical damage to their crafts caused by steamship wakes. Kuling was sold to China Merchants Steam Navigation Company for lower river service. In 1890, the Chinese government agreed to open Chongqing to foreign trade as long as it

12840-445: The vessel hit a rock and sunk, killing its captain and ending realistic hopes of regular commercial steam service on the Upper Yangtze. In 1908, local Sichuan merchants and their government partnered with Captain Plant to form Sichuan Steam Navigation Company becoming the first successful service between Yichang and Chongqing. Captain Plant designed and commanded its two ships, SS Shutung and SS Shuhun . Other Chinese vessels came onto

12960-534: The water stagnant, polluted and murky. In 1997, the Three Gorges area had 10% forestation, down from 20% in the 1950s. Research by the United Nations Food and Agriculture Organization suggested that the Asia-Pacific region would gain about 6,000 km (2,300 sq mi) of forest by 2008. That is a significant change from the 13,000 km (5,000 sq mi) net loss of forest each year in

13080-483: The water temperature and flow regime. Many other fish are injured in the hydroelectric plants' turbine blades. This is particularly detrimental to the region's ecosystem because the Yangtze River basin is home to 361 different fish species and accounts for 27% of China's endangered freshwater fish species. Other aquatic species have been endangered by the dam, particularly the baiji, or Chinese river dolphin , now extinct. In fact, Chinese Government scholars even claim that

13200-617: Was a compromise between the two methods adopted at the 1906 Imperial Postal Conference in Shanghai, which established postal romanization . Hanyu Pinyin was adopted by the PRC's First Congress in 1958, but it was not widely employed in English outside mainland China prior to the normalization of diplomatic relations between the United States and the PRC in 1979; since that time, the spelling Yangzi has also been used. The source and upper reaches of

13320-475: Was an early shipping company founded in 1876 in London, initially to trade up the Yangtze River from their Shanghai base with passengers and cargo. Chinese coastal trade started shortly after, and in 1883 a regular service to Australia was initiated. Steamers came late to the upper river, the section stretching from Yichang to Chongqing. Freshets from Himalayan snowmelt created treacherous seasonal currents. But summer

13440-509: Was better navigationally and the three gorges , described as a "150-mile passage which is like the narrow throat of an hourglass," posed hazardous threats of crosscurrents, whirlpools and eddies, creating significant challenges to steamship efforts. Furthermore, Chongqing is 700 – 800 feet above sea level, requiring powerful engines to make the upriver climb. Junk travel accomplished the upriver feat by employing 70–80 trackers, men hitched to hawsers who physically pulled ships upriver through some of

13560-568: Was commandeered by warlords and Shuhun was brought down river to Shanghai for safekeeping. In 1921, when Captain Plant died at sea while returning home to England, a Plant Memorial Fund was established to perpetuate Plant's name and contributions to Upper Yangtze navigation. The largest shipping companies in service, Butterfield & Swire, Jardine Matheson, Standard Oil, Mackenzie & Co., Asiatic Petroleum, Robert Dollar, China Merchants S.N. Co. and British-American Tobacco Co., contributed alongside international friends and Chinese pilots. In 1924,

13680-570: Was considered for its water-saving performance or because the engineers thought the difference in height between the river above and below the dam too great for alternative methods. No construction work was performed because of the Nationalists' worsening situation in the Chinese Civil War. After the 1949 Communist Revolution , Mao Zedong supported the project, but began the Gezhouba Dam project nearby first, and economic problems including

13800-407: Was estimated in 2009 that the cost of construction would be fully recouped when the dam had generated 1,000 terawatt-hours (3,600 PJ) of electricity, yielding 250 billion yuan; total cost recovery was thus expected to be completed ten years after the dam became fully operational. In fact, the entire cost of the Three Gorges Dam was recovered by December 20, 2013. Funding sources include

13920-438: Was eventually achieved on October 18, 2006, after the water level reached 156 meters. On the south side, main generator No. 22 started up on June 11, 2007, and No. 15 became operational on October 30, 2008. The sixth (No. 17) began operation on December 18, 2007, raising capacity to 14.1 GW, exceeding that of Itaipu dam (14.0 GW) to become the world's largest hydro power plant by capacity. When

14040-419: Was reorganized on 9 August 1919 from China Expeditionary Fleet ( 遣支艦隊 , Kenshi Kantai ) . Their ancestor was 7th Division ( 第七戦隊 , Dai-Nana Sentai ) under World War I . They became 11th Division only for gunboats and became extinct. The 2nd Expeditionary Fleet ( 第二遣外艦隊 , Dai-Ni Kengai Kantai ) was organized on 16 May 1927 for reinforcements for 1st Expeditionary Fleet. Their role

14160-856: Was restricted to native crafts. In 1895, the Treaty of Shimonoseki provided a provision which opened Chongqing fully to foreign trade. Little took up residence in Chongqing and built Leechuan , to tackle the gorges in 1898. In March Leechuan completed the upriver journey to Chongqing but not without the assistance of trackers. Leechuan was not designed for cargo or passengers and if Little wanted to take his vision one step further, he required an expert pilot. In 1898, Little persuaded Captain Samuel Cornell Plant to come out to China to lend his expertise. Captain Plant had just completed navigation of Persia 's Upper Karun River and took up Little's offer to assess

14280-412: Was signed together with the contract. Most of the generators are water-cooled. Some of the newer ones are air-cooled, making them simpler in design and easier to manufacture and maintain. The first north-side main generator (No. 2) started up on July 10, 2003. The north side became completely operational on September 7, 2005, with the implementation of generator No. 9. Full power (9,800 MW)

14400-468: Was the guard of Northern China. Yangtze River Yangtze or Yangzi ( English: / ˈ j æ ŋ t s i / or / ˈ j ɑː ŋ t s i / simplified Chinese : 长江 ; traditional Chinese : 長江 ; pinyin : Cháng Jiāng ; lit. 'long river') is the longest river in Eurasia and the third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of

#404595