爱美食的NANA
The Dujiangyan Dam, 45km north of Chengdu, is an ancient technological wonder of the country. More than 2000 yers ago, Li Bing(250-200BC), as a local governor of the Shu State, designed this water control and irrigation dam and organized thousands of local people to complete the project to check the Mingjiang River.For many years the river,flooded the Chengdu agricultural area and local farmers suffered a lot from the water disaster. Due to the success of the project, the dam automatically diverts the Mingjiang River and channels it into irrigation canals. For many years the dam has continued to make the most of the water conservancy works. Expansion has been undertaken since 1949 and at present the system does a good job of irrigating farming land across 33counties of the western part of Sichuan Province. Local people feel proud of the system becaude it has supported a large amount of people in their daily life. What makes this system so good? The system is a large hydraulic water project which consists of three main parts: the Fish Mouth Water-Dividing Dam, the Flying Sand Fence, and the Bottle-Neck Channel. The Fish mouth functions to divide the flow of water into an inner river and an outer river. Long ago, when Li Bing worked as the local governor of the Shu State, he found the old river canal was too narrow to hold much water, which often overflowed the banks and caused disastrous flood. Based on natural geographic conditions, he organized the people to build a man-made dam. The whole dam looks like a fish, and the front dam has a circular cone shaped like a fish mouth. It is the dam that channels water into an outer canal and an inner canal. The outer water canal functions as the main stream and holds sixty percent of water in the river. The extra water goes through the inner canal for irrigation in Chengdu areas. The Flying Sand Fence joins the inner and outer canals. The fence functions to controll the flow of water and discharge excess into the inner canal from the main stream. During the dry season the fence doesn't work much, but when floods occur, the river rushes forward along the outer canal. As it approaches the fence, the fence,the river begins to turn round fast and soon many whirlpools are formed. The volatile whirlpools sweep away sand and pebbles and, throw them into the outer canal. For many years huge bamboo baskets were used as the fence. They were filled with stones and pebbles. However,at present, reinforced concrete weir has replaced the ancient fence. So now, let's discuss the Bottle-Neck Channel. A trunk canal was cut through the mountain into two parts which link up the inner canal for irrigation. The small part is later called Li Dui, which means an isolated hill. Chengdu looks like a large bottle and the trunk canal between the mountain and the hill takes shape of the bottleneck. The trunk canal technically has two functions: First, it leads the water to irrigate the farming land in western Sichujan; Secondly, the trunk casnal works together with the Flying Sand Weir to keep the flow below a certain point in the inner canal during flood season. Some stone tablets, which stand on the isolated hill, are engraved in Buddhist Sanskrit. The local people hope that the Buddhist tablets can exert the Buddhist superpower to harness flood disaster. For over two thousand years, in fact, the Fish Mouth Water-Dividing Dam, the Flying Sand Weir, and the Bottle-neck Channel automatically work together to control foods and sweep away sand and stones in the main stram. The local people benefit a lot from this project. Not far from the Dujiang Dam, a Daoist temple complex was wrwcted was erected to commemorate the benevolent rule of Li Bing and his son who succeeded him. Li Bing and his son were granted the posthumous title of Wang. The folk story says that July 24of the Chinese Lunar Calendar is Li Bing' birthday. On the day many local people visit the temple where they prostrate themselges before the image of Li Bing and his son and burn incense to honor them. The larger-than-life painted statues of father and son overlook the rushing river below. Nearby a stone tablet os engraved with a famous six-character quotation from Li Bing,"when the river flows in zigzags, cut a straight channel. When the riverbeb is wide and shallow, dig it deeper." The temple which is built near the mountaintop, is a popular stopping place for sightseers. There one can enjoy a unique view of the most modern parts of the water conservation project. People appreciate the ancient wonder, which still works to benefit people today.
张先生899547
Dujiangyan (Chinese: 都江堰; Pinyin: Dūjiāngyàn) is a county-level city of Chengdu, Sichuan Province in China. It has an area of 1208 square kilometers and a population of 600,000 in 2003.[1]Historically known as Guanxian, the city was renamed in honor of the Dujiangyan Irrigation System, located in the northwestern area of the city, famous for still providing neighboring major city Chengdu with water even though it was built around 250 BC.Around 250BC during the Warring States Period (475-221BC), Li Bing, a governor of Shu in the Qin state (present Sichuan Province) with his son directed the construction of Dujiangyan. The governor gave up the old way of dam building, which was simply try to catch the floodwaters. Instead he employed a new method by channeling and dividing the water to harness the Min River. He accomplished this by separating the project into two main parts: the headwork and the irrigation system. The project effectively put flood waters under control. For over two thousand years the whole system has functioned perfectly, serving not only for flood prevention but also as an immense source for irrigation and a means to facilitate shipping and wood drifting. It has contributed greatly to the richness of Chengdu Plain with its reputation as "The Land of Abundance".On 12 May 2008, the city was the closest to the epicenter the 2008 Sichuan earthquake and the city suffered severe damage. Xinjian Primary School, Juyuan Middle School, and Xiang'e Middle School collapsed in the earthquake; Beijie Primary School did not collapse.[2][3][4]
优质英语培训问答知识库
