1. Imitation of Dujiangyan Composition
Early this morning, five of us drove to the world-famous Dujiangyan for sightseeing. On the way, it suddenly started to rain heavily, casting a shadow over the joyful mood. As we neared our destination, the sky cleared after the rain, and I felt relieved.
The first thing that comes into view is "Lidui Park", which was named "Huazhou" in the Song Dynasty and "Sangyuan" in the Qing Dynasty. The grass is in various shapes and forms, and the fragrance of flowers is overflowing. The origin of "Lidui" is that when Li Bing was building Dujiangyan, in order to divert water from the Min River to western Sichuan and irrigate farmland, he manually dug a water diversion port next to it and separated a hill from the Yulei Mountain connected to the opposite side, forming a It is named after a solitary pile.
Dujiangyan is composed of three major projects: Yuzui Diversion Dike, Feishayan and Baopingkou. First, the "Fishui Dividing Dike" divides the Minjiang River into the outer river and the inner river. The outer river drains floods and sand, and the inner river diverts water for irrigation. Second, the "Feisha Weir" releases floods, discharges sand and gravel, and blocks spring water. It is a major feature that the Minjiang River water is continuously sent to the irrigation area during the dry season. Third, the "Ping Baokou" is a narrow and deep trapezoidal water diversion mouth dug manually. First, it diverts water for downstream use. Second, it is used in conjunction with Feishayan to control the floods of the Inner River from flowing into the Chengdu Plain and allowing the floods to drain away. Waijiang. These three main projects are interdependent and restrict each other, forming an organic whole. This makes the western Sichuan plain become "a land of abundant abundance" that "doesn't get flooded by big floods and never gets drought by small floods".
Li Bing and his son built the Dujiangyan Irrigation System despite hardships and dangers, overcoming numerous difficulties. It has been exerting great benefits and benefiting mankind for more than 2,200 years. In an era when science was extremely underdeveloped, these great achievements must not be forgotten by the times, let alone people. Temples were built to commemorate them, and the "Fulong Temple" entrusted people's memories. We learn from our ancestors their spirit of hard work. We must study hard to live up to our ancestors - we are hard-working and brave Chinese! 2. Give me some good articles about Dujiangyan, thank you
Excerpts, I hope they are useful:
Dujiangyan Scenic Area
Dujiangyan was built in 256 BC. It is the oldest and only remaining grand water conservancy project in the world that features no dam to divert water. For more than two thousand years, it has been playing the role of flood control and irrigation, making the Chengdu Plain a land of abundance with thousands of miles of fertile fields and floods and droughts. World Cultural Heritage - Dujiangyan Tourist Area is a national AAAA tourist attraction and a national scenic spot.
The Minjiang River is a larger tributary of the upper reaches of the Yangtze River, originating from the high mountain areas of northern Sichuan. Whenever there are flash floods in spring and summer, the river rushes down into the Chengdu Plain. Due to the narrow river channel, floods often occurred in ancient times. Once the flood recedes, sand and rocks are thrown back thousands of miles away. The Yulei Mountain on the east bank of the Minjiang River in Guan County blocks the eastward flow of the river, causing drought in the east and floods in the west. In the 51st year of King Zhaoxiang of Qin, Li Bing was appointed as the prefect of Shu County. He benefited the people, eliminated floods, and presided over the construction of the famous Dujiangyan Irrigation Project.
The main project of Dujiangyan is to divide the water flow of the Min River into two streams, one of which is introduced into the Chengdu Plain. This can not only divert floods and reduce disasters, but also divert water to irrigate fields and turn harm into benefit. The other one flows into the Yangtze River. The most important part of the Dujiangyan Water Conservancy Project is the Dujiangyan Canal Head Project, which is the most critical and important facility in the Dujiangyan irrigation system. The Dujiangyan canal head project mainly consists of three parts: Yuzui diversion embankment, Feishayan spillway and Baopingkou diversion project. It scientifically solves the problems of automatic diversion of river water, automatic sand discharge, and control of incoming water flow. The three are connected end to end, taking care of each other, and are natural and ingenious.
The Yuzui Dividing Dike is located at the top of the middle reaches of the Minjiang River. It divides the rushing Minjiang River into two parts. The outer river is the original river bed, and the inner river is used for diversion and irrigation. Its ingenuity is reflected in two points. One is that it utilizes the fact that the inner river bed is low and 60% of the water is diverted during the dry season, while the outer river bed is wide and 60% of the water is released during the flood season. The so-called "divided into four and six, flat and drought" is exactly the truth. Second, the fish mouth is located at the end of the first bend in the middle reaches of the Minjiang River. It cleverly utilizes the natural laws of fluid mechanics in bends, that is, surface water flows into the concave bank, and low-level water flows into the convex bank. Therefore, the surface water with less sand and gravel content naturally flows into the inner river, while the bottom water squeezes along the convex bank of the river bend toward the outer river, and most of the sand and gravel rolls and settles on the outer river channel. This is what the saying goes: "Divert floods at 46 and remove sand at 28".
When the fish mouth leads the river water into the inner river, the rushing river water is ready to flow to the Chengdu Plain. How to control the unruly wildness of Minjiang River?
Feishayan is one of the three major elements of Dujiangyan. It looks very ordinary, but in fact its function cannot be replaced by any project. It can be said to be the key to ensuring that the Chengdu Plain is not flooded. The height of Feishayan is just 2.15 meters higher than the river bed of the Neijiang River. Its main function is that when the water volume of the Neijiang River exceeds the upper limit of the flow rate of Baopingkou, the excess water will overflow from Feishayan; in the event of a severe flood emergency, It will also burst its banks on its own, allowing a large amount of river water to return to the normal flow of the Minjiang River. Another function is that the "flying sand" cleverly uses the centrifugal force and the top dragging effect of Hutou Rock to throw the silt and pebbles brought from the upstream, and even boulders weighing hundreds of kilograms, into the outer river from here, ensuring that The Neijiang River is smooth and it is indeed a magical place.
Baopingkou is a man-made gorge. Yulei Mountain is divided into two, leaving only a 20-meter water inlet. Inner river water flows from a hundred-meter-wide channel to Baoping. At the mouth of the river, it rushes through during the flat water season, but rises steadily during the peak season. Uncontrolled water flow continues to climb, and once it surges in, the Chengdu Plain will suffer flood disasters. The design of Feishayan here is integrated with Baopingkou. Its height is just 2.15 meters higher than the Neijiang river bed. This means that when the water level in the Neijiang River rises by 2.15 meters, raging waves will overflow from Feishayan. The water entering the mouth of the Aquarius is always at an almost balanced constant. The Chengdu Plain has been irrigated and safe since then. The painstaking efforts here can be described as a coincidence.
The people of Sichuan built the Erwang Temple in memory of Li Bing and his son. The original name of Erwang Temple is "Chongde Temple", which means that Li Bing has made great achievements in controlling floods, and people admire his kindness. In the Song and Yuan dynasties, Li Bing and his son were granted the title of king successively, so Chongde Temple was changed to Erwang Temple. From then on, Shu people respected Li Bing like a god. The existing buildings were rebuilt in the Qing Dynasty.
For more than 2000 years, Li Bing and his son dug out heaps, dug weirs and built canals. The blessings they brought to the Land of Abundance have always been respected and appreciated by the world. The Erwang Temple has not only been popular since ancient times, but also has been in history. There have always been official and private festivals and sacrificial activities. Temple fair activities centered on the 24th and 26th of June of the lunar calendar each year were formed with Li Bing and his son as the theme characters. 3. How to write a travel note about Dujiangyan
This summer vacation, I went to many places in Sichuan, including the Wuhou Temple that records history, the quiet Qingcheng Mountain, the poet Du Fu Thatched Cottage, and the Erwang Temple , Qingyang Palace, etc., but the one that impressed me the most was Dujiangyan.
Early in the morning that day, a group of us got on the travel agency's car and arrived at the gate of Dujiangyan. At this time, the sky was just getting bright, and the tour guide took us inside. After walking a few dozen meters, I saw a fountain.
Surrounding it are slender bamboo baskets, which are full of large pebbles. There are several tripod-like things made of wood and fixed with ropes on the side. It is said that Back then, Li Bing and his son used these two things to hold back the water. There are four or five thick and long wooden stakes lying in the middle of the fountain.
I heard from the tour guide that in ancient times, the sand and gravel at the bottom of the river had to be cleaned every year. Li Bing used this wooden stake to mark it. After digging the wooden stake, he stopped digging downwards. Until now, the bottom of the river has been cleared. There are stakes like that. Continuing forward, the tour guide led us towards Yuzui, passing by the Yan Gong Road. On both sides of it are the bronze statues of twelve heroes who built and protected Dujiangyan.
We kept walking from the back to the front, and not far away we saw the "Baopingkou" first. The Baopingkou divided a large mountain into two parts. The water between the two parts flows to the Neijiang River, and the remaining The water flows to the outer river, and most of the water in Chengdu is from the inner river. Further forward is the "Feisha Weir". Its main function is to discharge floods and sand. The Neijiang River is very clean after passing through Feisha Weir.
Just when I was feeling the greatness of the ancients, I came to "Yuzui" unknowingly. Because its front looks like a flat fish mouth, it is named Yuzui. It is here that the Minjiang River is divided into the Inner River and the Outer River.
When I went to Dujiangyan this time, I saw the ingenuity of the Chinese people. They made bamboo baskets and tied small stones together to increase the weight so that they would not be washed away by the water. Things like tripods took advantage of the stability principle of triangles, and what I mentioned earlier was dividing the mountain. Second, if you want to dig the mountain slowly, it will take a long time. However, the ancients knew how to use the principle of thermal expansion and contraction. First, burn the stone with fire, and then water it immediately, so that the stone will explode when it shrinks rapidly. Come, turned into small stones, which are not only easier to carry, but also more labor-saving and save a lot of time.
I really admire the perseverance, determination and wisdom of Li Bing and his son. We must learn from their perseverance.