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Dujiangyan Irrigation System
The Dujiangyan () is an ancient irrigation system in Dujiangyan City, Sichuan, China. Originally constructed around 256 BC by the State of Qin as an irrigation and flood control project, it is still in use today. The system's infrastructure develops on the Min River (Minjiang), the longest tributary of the Yangtze. The area is in the west part of the Chengdu Plain, between the Sichuan Basin and the Tibetan Plateau. Originally, the Min would rush down from the Min Mountains and slow down abruptly after reaching the Chengdu Plain, filling the watercourse with silt, thus making the nearby areas extremely prone to floods. King Zhao of Qin commissioned the project, and the construction of the Dujiangyan harnessed the river using a new method of channeling and dividing the water rather than simply damming it. The water management scheme is still in use today to irrigate over of land in the region and has produced comprehensive benefits in flood control, irrigation, water transport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dujiangyan City
Dujiangyan () is a county-level city of Sichuan Province, Southwest China, it is under the administration of the prefecture-level city of Chengdu. Its north-west region forms a border with southern Ngawa Tibetan and Qiang Autonomous Prefecture. It has an area of and had a population of 710,056 in 2020. Dujiangyan was formerly a county named Guanxian or Guan County (). 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. History Around 250 BC during the Warring States period, Li Bing, a governor of Shu (present Sichuan Province) in the Qin state with his son directed the construction of Dujiangyan. Li Bing gave up the old ways of dam building, which were simply directed at flood control, employing a new method of channeling and dividing the water of the Min River. He accomplished this by separating the project into two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sina
Sina may refer to: Relating to China * Chin (China), or Sina (), old Chinese form of the Sanskrit name Cina () ** Shina (word), or Sina (), archaic Japanese word for China ** Sinae, Latin name for China Places * Sina, Albania, or Sinë, a village in Dibër County, Albania * Sina, Iran (), a village in Isfahan Province, Iran * Sena, Iran (), also romanized as Sina, a village in Bushehr Province, Iran * Sina Rural District, in East Azerbaijan Province, Iran * Sina District, in San Antonio de Putina Province, Peru People * Ali Sina (activist), pseudonym of an Iranian-born Canadian activist, founder of several anti-Islam and anti-Muslim websites * Elvis Sina (born 1978), Albanian soccer player * Ibn Sīnā (c. 980 – 1037), also known as Avicenna, Persian physician, philosopher, and scientist * Jaren Sina (born 1994), Portugal-born American basketball player of Kosovar origin * Melek Sina Baydur (born 1948), Turkish diplomat and former Ambassador of Turkey * Sina Asho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhang Xianzhong
Zhang Xianzhong (張獻忠 or Chang Hsien-chung; 18 September 1606 – 2 January 1647), courtesy name Bingwu (秉吾), art name Jingxuan (敬軒), was a Chinese peasant leader who led a peasant rebellion from Yan'an wei, Shaanxi (today Yulin, Shaanxi province) during the Ming-Qing transition. He conquered Sichuan in 1644, and named himself king and later emperor of the Xi dynasty. His rule in Sichuan was brief, and he was killed by the invading Qing army. He is commonly associated with the massacres in Sichuan that depopulated the region. However, the extent of his killings is disputed. Biography Early life Zhang was born in Liushujian (柳树涧; literally 'willow spring', modern Dingbian, Shaanxi province), in 1606 into a poor family. He was described as tall in stature, had a yellow complexion and a "tiger chin" (, meaning an impressive beard), and hence was given the nickname "Yellow Tiger". He served in the Ming army, and while in the army he was sentenced to death f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dujiangyan Irrigation System
The Dujiangyan () is an ancient irrigation system in Dujiangyan City, Sichuan, China. Originally constructed around 256 BC by the State of Qin as an irrigation and flood control project, it is still in use today. The system's infrastructure develops on the Min River (Minjiang), the longest tributary of the Yangtze. The area is in the west part of the Chengdu Plain, between the Sichuan Basin and the Tibetan Plateau. Originally, the Min would rush down from the Min Mountains and slow down abruptly after reaching the Chengdu Plain, filling the watercourse with silt, thus making the nearby areas extremely prone to floods. King Zhao of Qin commissioned the project, and the construction of the Dujiangyan harnessed the river using a new method of channeling and dividing the water rather than simply damming it. The water management scheme is still in use today to irrigate over of land in the region and has produced comprehensive benefits in flood control, irrigation, water transport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weathering
Weathering is the deterioration of rocks, soils and minerals (as well as wood and artificial materials) through contact with water, atmospheric gases, sunlight, and biological organisms. It occurs '' in situ'' (on-site, with little or no movement), and so is distinct from erosion, which involves the transport of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Weathering processes are either physical or chemical. The former involves the breakdown of rocks and soils through such mechanical effects as heat, water, ice and wind. The latter covers reactions to water, atmospheric gases and biologically produced chemicals with rocks and soils. Water is the principal agent behind both kinds, though atmospheric oxygen and carbon dioxide and the activities of biological organisms are also important. Biological chemical weathering is also called biological weathering. The materials left after the rock breaks down combine with organic material to create so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Gunpowder
Gunpowder is the first explosive to have been developed. Popularly listed as one of the "Four Great Inventions" of China, it was invented during the late Tang dynasty (9th century) while the Wujing Zongyao, earliest recorded chemical formula for gunpowder dates to the Song dynasty (11th century). Knowledge of gunpowder spread rapidly throughout Asia and Europe, possibly as a result of the Mongol conquests during the 13th century, with written formulas for it appearing in the Middle East between 1240 and 1280 in a treatise by Hasan al-Rammah, and in Europe by 1267 in the by Roger Bacon. It was employed in warfare to some effect from at least the 10th century in weapons such as fire arrows, bombs, and the fire lance before the appearance of the gun in the 13th century. While the fire lance was eventually supplanted by the gun, other gunpowder weapons such as rockets and fire arrows continued to see use in China, Korea, India, and this eventually led to its use in the Middle East, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bamboo
Bamboos are a diverse group of mostly evergreen perennial plant, perennial flowering plants making up the subfamily (biology), subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family, in the case of ''Dendrocalamus sinicus'' having individual stalks (Culm (botany), culms) reaching a length of , up to in thickness and a weight of up to . The internodes of bamboos can also be of great length. ''Kinabaluchloa, Kinabaluchloa wrayi'' has internodes up to in length. and ''Arthrostylidium schomburgkii'' has internodes up to in length, exceeded in length only by Cyperus papyrus, papyrus. By contrast, the stalks of the tiny bamboo Raddiella, ''Raddiella vanessiae'' of the savannas of French Guiana measure only in length by about in width. The origin of the word "bamboo" is uncertain, but it most likely comes from the Dutch language, Dutch or Portuguese language, Portuguese language, which originally borrowed it from Malay langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tael
Tael ( ),"Tael" entry at the . or liang, also known as the tahil and by other names, can refer to any one of several measures used in and . It usually refer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chengdu Plain
The Chengdu Plain ( zh, t=成都平原, s=成都平原, p=Chéngdū Píngyuán), referred to in Sichuanese as the Western Sichuan Plain ( zh, s=川西坝子, first=t; Sichuanese Pinyin: ''Cuanxi Bazi''), is an alluvial plain located in the western part of the Sichuan Basin in southwestern China. Chengdu, the capital of Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ..., is located at the center of it. The plain has fertile soil and a favorable climate for rice cultivation, giving it importance in agriculture. The Chengdu Plain has historically been difficult to reach from the coastal regions of China, leading to it developing its own distinct culture. Only after the beginning of the 20th century, transportation became less inconvenient. In Chinese and Western literatu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levee
A levee ( or ), dike (American English), dyke (British English; see American and British English spelling differences#Miscellaneous spelling differences, spelling differences), embankment, floodbank, or stop bank is an elevated ridge, natural or artificial, alongside the river banks, banks of a river, often intended to flood control, protect against flooding of the area adjoining the river. It is usually soil, earthen and often runs parallel (geometry), parallel to the course of a river in its floodplain or along low-lying coastlines. Naturally occurring levees form on river floodplains following flooding. Sediment and alluvium are deposition (geology), deposited on the banks and settle, forming a ridge that increases the river channel's capacity. Alternatively, levees can be artificially constructed from fill dirt, fill, designed to regulate water levels. In some circumstances, artificial levees can be environmental degradation, environmentally damaging. Ancient civilization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Li Bing (Qin)
Li Bing (; ) was a Chinese hydraulic engineer and politician of the Warring States period. 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. Li Bing became a cultural icon, known as the vanquisher of the River God and is compared to the Great Yu. Dujiangyan is still in use today and is listed as a UNESCO World Heritage Site. Life and career King Zhaoxiang of Qin (r. 306–251 BC) dispatched Li Bing as a joint military and civilian governor (''shou'') over Shu, a recently defeated state in Sichuan province, Southwest China, just west of modern Chengdu. According to the ''Records of the Grand Historian'', Li Bing was appointed governor of Shu in c. 277 BC. However, the ''Chronicles of Huayang'' place Li Bing in Shu in 272 BC. He arrived just as Zhang Ruo had put down the last of the mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warring States Period
The Warring States period in history of China, Chinese history (221 BC) comprises the final two and a half centuries of the Zhou dynasty (256 BC), which were characterized by frequent warfare, bureaucratic and military reforms, and struggles for greater hegemonic influence among the ancient Chinese states, various autonomous feudal states of the Eastern Zhou dynasty. It followed the Spring and Autumn period and concluded with the eventual unification of China by the western state of Qin (state), Qin under Qin Shi Huang, who Qin's wars of unification, conquered all other contender states by 221 BC and found the Qin dynasty, the first history of China#Imperial China, imperial dynasty in East Asian history. While scholars have identified several different dates as marking the beginning of the Warring States period, Sima Qian's choice of 475 BC, the first year of King Yuan of Zhou's reign, is the most often cited due to the paucity of preceding annals after th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
