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Yangtze River
Yangtze
River is the longest river of Asia, about 6300 km (about 3937
mile) in length. Yangtze
River rises in the Kunlun Mountains in the southwestern
section of Qinghai Province in China, and flows generally south through
Sichuan Province into Yunnan Province, where, in the vicinity of Huize,
it bends sharply to the northeast. Then, Yangtze river flows generally
northeast and east across central China through Sichuan, Hubei, Anhui,
and Jiangsu Provinces to its mouth in the East China Sea, about 23
km (about 14 mi) north of Shanghai.
The headwaters of the Yangtze are situated at
an elevation of about 4900 m (about 16,000 ft). In its descent to sea
level, the river falls to an altitude of 305 m (1000 ft) at Yibin,
Sichuan Province, the head of navigation for riverboats, and to 192 m
(630 ft) at Chongqing. Between Chongqing and Yichang (I-ch'ang), at an
altitude of 40 m (130 ft) and a distance of about 320 km (about 200 mi),
it passes through the spectacular Yangtze Gorges, which are noted for
their natural beauty but are dangerous to shipping. Yichang, 1600 km
(1000 mi) from the sea, is the head of navigation for river steamers;
oceangoing vessels may navigatethe river to Hankou (Hankow), a distance
of almost 1000 km (almost 600 mi) from the sea. For about 320 km (about
200 mi) inland from its mouth, the river is virtually at sea level.
More than 1,683,500 sq km (650,000 sq mi) of territory is drained by the
Yangtze and its branches. The principal tributaries are the Han, Yalong,
Jialing, Min, and Tuo He (T'o Ho), on the N and on the south, the Wu; at
Zhenjiang, the Grand Canal links the Yangtze to the Huang He (yellow
River). During periods of heavy rains, Lakes Dongting and Poyang receive
some of the overflow of the Yangtze. Despite these outlets, floods
caused by the river occasionally have caused great destruction of life
and property. In the 20th century, devastating floods have occurred in
1905, 1980, and 1981.
With its numerous tributaries and feeders,
the Yangtze provides a great transportation network through the heart of
some of the most densely populated and economically important areas in
China. Among the principal cities on the Yangtze, in addition to those
cited in the foregoing, are Wuchang, Nanjing, Hanyang, and Anqing (An-ch'ing).
Jiangsu Province, largely a deltaic plain consisting of silt deposited
by the Yangtze (more than 170 million cu m/6 billion cu ft annually), is
one of the chief rice-growing areas of China.
Although
the entire river is known as the Yangtze River to foreigners, the
Chinese apply that designation only to the last 480 or 645 km (300 or
400 mi) of its course, the portion traversing the region identified with
the Yang kingdom (flourished about 10th century BC). From Its upper
reaches to Yibin,Yangtze river is called the Jinsha River (Golden Sand)
and various other names are applied in the provinces it traverses. The
official name for the entire river is Chang Jiang ("Long River) or
Yangtze River.
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