A report on Dujiangyan

Dujiangyan irrigation system
The map showing the plan of Dujiangyan project
Eastern Han (25–220 CE) statue of Li Bing, the hydraulic engineer responsible for Dujiangyan
Dujiangyan
296x296px
Fish Mouth Levee
Water ways map
The Erwang Temple at Dujiangyan
A paifang in Dujiangyan

Ancient irrigation system in Dujiangyan City, Sichuan, China.

- Dujiangyan
Dujiangyan irrigation system

15 related topics with Alpha

Overall

Sichuan

7 links

Landlocked province in Southwest China occupying most of the Sichuan Basin and the easternmost part of the Tibetan Plateau between the Jinsha River on the west, the Daba Mountains in the north and the Yungui Plateau to the south.

Landlocked province in Southwest China occupying most of the Sichuan Basin and the easternmost part of the Tibetan Plateau between the Jinsha River on the west, the Daba Mountains in the north and the Yungui Plateau to the south.

Bronze head from Sanxingdui, dating from the Shu kingdom
Golden Sun Bird from Jinsha site
A stone-carved gate pillar, or que, 6 m in total height, located at the tomb of Gao Yi in Ya'an, Sichuan, built during the Eastern Han dynasty (25–220 CE)
Warlords in China around 194; Liu Bei's takeover of Yi Province meant he seized the positions of Liu Biao and Zhang Lu eventually
The Leshan Giant Buddha, built during the latter half of the Tang dynasty (618–907).
Japanese bombers bombing a Chinese road in Sichuan during WW2
Shops in Jundao, a town devastated by the 2008 Sichuan earthquake
Giant pandas eating bamboo in Chengdu, Sichuan
The capital of Sichuan, Chengdu.
IFS Chengdu Mall Entrance
Waldorf Astoria Hotels & Resorts in Chengdu
Nijia Qiao, South Renmin Road, Chengdu
Sichuan–Tibet Highway passes by Lake Kasa in Luhuo County.
The Yi are the largest ethnic minority group in Sichuan.
Typical vernacular house in Sichuan
Extent of present-day Sichuanese language
Sichuan Education Department
Larix potaninii in autumn colour.
Garzê Prefecture
Zitong County
Linpan in Chengdu Plain is a well-known landmark in Chengdu Plain, Sichuan.
View of the Temple of the Yellow Dragon (Chinese Buddhism) in Huanglong.
Statues of buddhas at Litang Monastery of the Tibetan tradition.
A pavilion of the Shangqing Temple (Taoist) in Qingchengshan, Chengdu.
Golden Temple of Mount Emei (Chinese Buddhism).
Kung Pao chicken, one of the best known dishes of Sichuan cuisine
Mapo doufu
Hot pot in Mala style
Dandan noodles
Mixed sauce noodles ({{lang|zh-hans|杂酱面}})
Jiuzhaigou
Yading
Huanglong Scenic and Historic Interest Area
Waterfalls at Mount Qincheng
Bipenggou Valley
Mount Siguniang Scenic Area
Hailuogou Glacier
Dujiangyan irrigation system
alt=|Mount Emei
{{ill|Baba Temple|zh|巴巴寺}}, a Chinese Sufi mosque in Langzhong.
{{ill|Cathedral of the Immaculate Conception, Chengdu|es|Catedral de la Inmaculada Concepción de Chengdu}} (Roman Catholic)
St John's Cathedral, Langzhong (Anglican)
alt=|Mount Emei

Li Bing, engineered the Dujiangyan irrigation system to control the Min River, a major tributary of the Yangtze.

The archaeological site of Jinsha is a major discovery in Chengdu in 2001.

Chengdu

5 links

Sub-provincial city which serves as the capital of the Chinese province of Sichuan.

Sub-provincial city which serves as the capital of the Chinese province of Sichuan.

The archaeological site of Jinsha is a major discovery in Chengdu in 2001.
The Dujiangyan Irrigation System built in 256 BC still functions today.
Huangchengba in 1911
An all-airwar was fought over Chengdu between the Chinese Air Force and the Imperial Japanese Army and Navy air forces; an I-16 fighter shown here at the Datangshan Aviation Museum
40th Bombardment Group Boeing B-29-5-BW Superfortress 42-6281 "20th Century Unlimited" at Hsinching Airfield (A-1), China, advanced China Base of the 40th Bomb Group after completion of a raid on Anshan, Manchuria. Mission No. 4, 29 July 1944
People's Liberation Army troops entered Chengdu on 27 December 1949
Map including Chengdu (labeled as CH'ENG-TU (walled) 成都) (AMS, 1958)
Map including Chengdu (labeled as CH'ENG-TU)
Jinli historical district of Chengdu
Cathedral of the Immaculate Conception, seat of the Roman Catholic Diocese of Chengdu
Sichuan Opera
Teahouse in Chengdu
Mahjong
Pandas at the Chengdu Research Base of Giant Panda Breeding
Sichuan Giant Panda Sanctuaries
Wuhou Shrine
Jinsha gold mask
The Golden Sun Bird
Sanxingdui bronze head
Wenshu Monastery
Qingyang Taoist Temple
Starbucks at the Kuanzhai Alleys
Jinli Street at night
Jinli Street
Huanglongxi Historic Town
Dr. Sun Yat-sen Square at Chunxi Road
Map of Chengdu showing infrastructures and land use, made by the CIA in 1989. Note that city mostly ends at what is today's second ring road.
Chunxi Road
Taikoo Li and IFS at the city centre
Terminal 2, Chengdu Shuangliu International Airport
Chengdu Tianfu International Airport
Chengdu Metro Network
Botanical Garden Station
Chengdu BRT
Sichuan University
Southwestern University of Finance and Economics
Chengdu Fenghuangshan Sports Park professional football stadium
Chengdu Dong'an Lake Sports Park Stadium
Hongzhaobi, South Renmin Road, Chengdu
South Renmin Road, Chengdu
IFS, Hongxing Road, Chengdu
Hotel Waldorf Astoria in Chengdu
Nijia Qiao, South Renmin Road, Chengdu
Jin River, Shangri-la Hotel Chengdu
City Centre of Jinjiang District
Sino-Ocean Taikoo Li, Chengdu
Sino-Ocean Taikoo-Li, Chengdu
Financial City, Chengdu
Yanlord Landmark, Hongzhaobi Crossroads, Chengdu
Anshun Bridge and Jinjiang River
Daci Temple Taikoo Li
Chengdu Global Center
Arabica at Kuanzhai Alleys
The Dujiangyan Irrigation System built in 256 BC still functions today.
Xiling Snow Mountain

The site of Dujiangyan, an ancient irrigation system, is designated as a World Heritage Site.

Map of the Min River drainage basin

Min River (Sichuan)

5 links

735 km in central Sichuan province, China.

735 km in central Sichuan province, China.

Map of the Min River drainage basin

In that area, the ancient Irrigation System and the modern Zipingpu dam are located.

Qin (state)

5 links

Ancient Chinese state during the Zhou dynasty.

Ancient Chinese state during the Zhou dynasty.

Bronze mold for minting banliang coins, Warring States period (475–221 BC), State of Qin, from an excavation in Qishan County, Baoji, Shaanxi province
Belt plaque in the shape of a standing wolf, characteristic of [[:File:狼紋青銅帶飾-Belt Plaque in the Shape of a Standing Wolf MET DT5398.jpg|nomadic artifacts]] of southern Ningxia and southeastern Gansu, with characteristic Qin-style surface decorations. Made in China for probable nomadic consumption. 4th century BC.
Qin before the conquest of Sichuan, 5th century BC
Animated map of the Warring States period
Bronze tiger-shaped tally. The Tiger Tally was a kind of special token granted to the commander to confer military authority and legitimize orders.
State of Qin (bronzeware script, c. 800 BC)
State of Qin (small seal script, 220 BC)
Bronze lance head, Qin

Qin had a penchant for building large-scale canals, as evident from its Min River irrigation system.

Yangtze

4 links

Longest river in Asia, the third-longest in the world and the longest in the world to flow entirely within one country.

Longest river in Asia, the third-longest in the world and the longest in the world to flow entirely within one country.

Golden Island, on The Yang-Tse River, China (LMS, 1869, p.64)
The Qutang Gorge along the Yangtze River.
Three Gorges Dam in Hubei.
Tiger Leaping Gorge in Yunnan.
A map of China depicting the Yellow River's southerly path following its stabilization by the Grand Eunuch Li Xing's public works after the 1494 flood
Yangtze drainage basin
Afternoon in the jagged mountains rising from the Yangtze River gorge
A map of the Warring States around 350 BC, showing the former coastline of the Yangtze delta
USS Luzon
Yangtze in 1915
Cruise boats on Yangtze
A vehicle carrier on Yangtze
A container carrier on Yangtze
The Imperial Japanese Navy armored cruiser Izumo in Shanghai in 1937. She sank riverboats on the Yangtze in 1941.
Barges on the river
Map of the Yangtze river locating the Three Gorges Dam
Satellite map showing the lake created by the Three Gorges Dam. Compare Nov. 7, 2006 (above) with April 17, 1987 (below).
The Three Gorges Dam in 2006
Diagram showing dams planned for the upper reaches of the Yangtze River
A shipyard on the banks of the Yangtze building commercial river freight boats
The two sturgeon species in the Yangtze (here Chinese sturgeon) are both seriously threatened.
The silver carp is native to the river, but has (like other Asian carp) been spread through large parts of the world with aquaculture.
The critically endangered Chinese alligator is one of the smallest crocodilians, reaching a maximum length of about 2 m.
The entirely aquatic Chinese giant salamander is the world's largest amphibian, reaching up to 1.8 m in length.
The Chinese mitten crab is a commercially important species in the Yangtze, but invasive in other parts of the world.
The glaciers of the Tanggula Mountains, the traditional source of the Yangtze River
The Tuotuo River, a headwater stream of the Yangtze River, known in Tibetan as Maqu, or the "Red River"
The first turn of the Yangtze at Shigu (石鼓) in Yunnan, where the river turns 180 degrees from south- to north-bound
Narrowest point of the Tiger Leaping Gorge near Lijiang downstream from Shigu
The Jinsha, "Golden Sands River", in Yunnan
Qutang Gorge, one of the Three Gorges
Wu Gorge, one of the Three Gorges
Xiling Gorge, one of the Three Gorges
Wuhan Yangtze River Bridge, the first bridge crossing Yangtze, was completed in 1957.
The Nanjing Yangtze River Bridge, a beam bridge, was completed in 1968.
The Jiujiang Yangtze River Bridge, an arch bridge, was completed in 1992.
The Yichang Yangtze Highway Bridge, a suspension bridge near the Gezhouba Dam lock, was completed in 1996.
The Sutong Yangtze River Bridge, between Nantong and Suzhou, was one of the longest cable-stayed bridges in the world when it was completed in 2008.
The Caiyuanba Bridge, an arch bridge in Chongqing, was completed in 2007.
The cable-stayed Anqing Yangtze River Bridge at Anqing, was completed in 2005.
Wuhan Metro Line 2 is the first underground rail line crossing the Yangtze River.
Gan River in Jiangxi
Han River in Hubei
Lake Dongting and the Yuan, Zi, Li, and Xiang Rivers in Hunan
Wu River in Guizhou
Jialing River in eastern Sichuan and Chongqing Municipality
Min River in central Sichuan
Yalong River in western Sichuan

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.

Topographic map showing the Yangtze River flowing from Chongqing (bottom left) through the ridge-like detachment folds of the eastern Sichuan Basin (left) and the Three Gorges (top right)

Sichuan Basin

4 links

Lowland region in southwestern China.

Lowland region in southwestern China.

Topographic map showing the Yangtze River flowing from Chongqing (bottom left) through the ridge-like detachment folds of the eastern Sichuan Basin (left) and the Three Gorges (top right)
Haze forming within the Sichuan Basin, with the Daxue Mountains to the west
Evergreen broadleaf forests on Mount Emei
Map showing the Sichuan Basin (bottom left) independent of the ancient Chinese Zhou Dynasty prior to annexation by the Qin during the Warring States Period
The 2000-year-old Dujiangyan irrigation project
The densely populated Sichuan Basin (centre) stands out relative to the more sparsely populated surrounding mountainous regions
Laziji, a dish in Sichuanese cuisine
The Sidu River Bridge carries Expressway G50 from Central China across the Wu Mountains and into the Sichuan Basin
Map of the Yangtze River drainage basin with the Sichuan Basin in the centre
Map showing the second Shu State in the Sichuan Basin during the Three Kingdoms period
Sichuanese dialects are spoken in the Sichuan Basin and surrounding areas
The 4th century BC Shu Roads connected Sichuan Basin with the Yellow River valley (Shaanxi)
Sichuan Basin in relation to Southeast Asia and the eastern part of South Asia, with the Tea Horse Road routes highlighted in red

Irrigation in the western part of the basin has been controlled for over two millennia by the monumental Dujiangyan irrigation system, where the Min River enters.

Statue of Li Bing at Erwang Temple, Dujiangyan, sculpted during the Eastern Han Dynasty (25-220 AD)

Li Bing (Qin)

3 links

Chinese hydraulic engineer and politician of the Warring States period.

Chinese hydraulic engineer and politician of the Warring States period.

Statue of Li Bing at Erwang Temple, Dujiangyan, sculpted during the Eastern Han Dynasty (25-220 AD)
The central sections of the Dujiangyan.
The map showing the plan of Dujiangyan project

He served the state of Qin as an administrator and is revered for his work on the Dujiangyan River Control System, which both controlled flooding and provided irrigation water year-round, greatly increasing the productivity of the valley.

Dujiangyan City

2 links

County-level city of Sichuan Province, Southwest China, it is under the administration of the prefecture-level city of Chengdu.

County-level city of Sichuan Province, Southwest China, it is under the administration of the prefecture-level city of Chengdu.

Xuanhua Gate of Dujiangyan on 2018 Chinese New Year

The county became a county-level city in 1988 and was renamed after the Dujiangyan Irrigation System, in the city's northwest, famous for providing Chengdu with water for over two millennia, since around 250 BC.

Irrigation of agricultural fields in Andalusia, Spain. Irrigation canal on the left.

Irrigation

1 links

Agricultural process of applying controlled amounts of water to land to assist in the production of crops, as well as to grow landscape plants and lawns, where it may be known as watering.

Agricultural process of applying controlled amounts of water to land to assist in the production of crops, as well as to grow landscape plants and lawns, where it may be known as watering.

Irrigation of agricultural fields in Andalusia, Spain. Irrigation canal on the left.
Animal-powered irrigation, Upper Egypt, ca. 1846
Young engineers restoring and developing the old Mughal irrigation system in 1847 during the reign of the Mughal Emperor Bahadur Shah II in Indian subcontinent
Inside a karez tunnel at Turpan, Xinjiang, China
Share of agricultural land which is irrigated (2015)
Basin flood irrigation of wheat
Residential flood irrigation in Phoenix, Arizona, US
Drip irrigation – a dripper in action
Drip irrigation layout and its parts
Crop sprinklers near Rio Vista, California, US
A traveling sprinkler at Millets Farm Centre, Oxfordshire, United Kingdom
A small center pivot system from beginning to end
Rotator style pivot applicator sprinkler
Center pivot with drop sprinklers
Wheel line irrigation system in Idaho, US, 2001
Center pivot irrigation
An impact sprinkler watering a lawn, an example of a hose-end sprinkler
Irrigation is underway by pump-enabled extraction directly from the Gumti, seen in the background, in Comilla, Bangladesh.
Grapes in Petrolina, Brazil only made possible in this semi arid area by drip irrigation
Overirrigation because of poor distribution uniformity in the furrows. Potato plants were oppressed and turned yellow
upright|thumb|The hub of a center-pivot irrigation system
thumb|Leaks in micro-irrigation drip lines
thumb|Sprinkler irrigation of blueberries in Plainville, New York, United States
thumb|Irrigation in Tamil Nadu, India
thumb|upright|Irrigation ditch in Montour County, Pennsylvania, USA
thumb|Water gardens in Sigiriya, Sri Lanka
thumb|Micro-sprinkler

In the Sichuan region belonging to the state of Qin of ancient China, the Dujiangyan Irrigation System devised by the Qin Chinese hydrologist and irrigation engineer Li Bing was built in 256 BCE to irrigate a vast area of farmland that today still supplies water.

Glen Canyon Dam on the Colorado River, Arizona, USA

Dam

1 links

Barrier that stops or restricts the flow of surface water or underground streams.

Barrier that stops or restricts the flow of surface water or underground streams.

Glen Canyon Dam on the Colorado River, Arizona, USA
Lake Vyrnwy Dam, Wales, finished in 1888
Karapuzha Dam, an earthen dam in the Indian state of Kerala
Imatrankoski Dam on the Vuoksi River in Imatra, Finland
Small dam near Groningen, Netherlands
Afsluitdijk with the Wadden Sea (a part of the North Sea) on the left and the IJsselmeer on the right in the Netherlands
The Roman dam at Cornalvo in Spain has been in use for almost two millennia.
Remains of the Band-e Kaisar dam, built by the Romans in the 3rd century AD
An engraving of the Rideau Canal locks at Bytown
Masonry arch wall, Parramatta, New South Wales, the first engineered dam built in Australia
The Hoover Dam by Ansel Adams, 1942
Gordon Dam, Tasmania, is an arch dam.
Daniel-Johnson Dam, Quebec, is a multiple-arch buttress dam.
The Grand Coulee Dam is an example of a solid gravity dam.
The Hoover Dam is an example of an arch-gravity dam.
The Koshi Barrage of Nepal
Gathright Dam in Virginia is a rock-fill embankment dam.
Redridge Steel Dam, built 1905, Michigan
A timber crib dam in Michigan, 1978
A cofferdam during the construction of locks at the Montgomery Point Lock and Dam
Hydraulic turbine and electric generator
Hydroelectric dam in cross section
Spillway on Llyn Brianne dam, Wales, soon after first fill
The discharge of Takato Dam
Wood and garbage accumulation due to a dam
South Fork Dam failure and resulting flood that destroyed Johnstown in Pennsylvania in 1889
International special sign for works and installations containing dangerous forces

Du Jiang Yan is the oldest surviving irrigation system in China that included a dam that directed waterflow.