Which year was the Wuchen Year of the Qing Dynasty
As the saying goes: "Guilin's landscapes are the best in the world, and Yangshuo's landscapes are the best in Guilin." Under the Beauty Peak in Yangshuo County, Guangxi, my country, there is an account of Rhinoceros Lake covers an area of ??300 acres. The lake surface is clear and blue, with fish and crabs swimming around.
According to an old man in the village, the water rose once on March 17th in the Wuchen Year of Tongzhi in the Qing Dynasty (1868), which lasted for four days. On June 17, 1940, the water surged again. On that day, the weather was fine, and water suddenly flowed out of the cave. In an instant, the water rose to a foot deep. Within three days, the village and fields were covered with a vast ocean, just like a lake. At that time, it was the ripening season of early rice, and at the beginning of the flood, experienced people in the village knew that the flood would not recede in a short time, so the villagers rushed to harvest the rice. This incident caused a sensation, and people from all over the country came to see the flood in an endless stream.
However, on September 30, 1987, the blue lake water suddenly disappeared, leaving only the mud at the bottom of the lake. People were shocked. According to local people's recollections, a month before, there was a "rumbling" sound in the ground near Rhino Lake. The water level of the lake also dropped slightly, but the depth of the lake was still about 2 meters. On September 29, 1987, the lake suddenly disappeared overnight. The disappearance of Rhinoceros Lake once every 30 years has been recorded in the Yangshuo County Chronicle.
So, what is the secret of the strange life and death phenomenon in the lake? According to the analysis of relevant people, there is currently such an explanation: Guilin's landscape is composed of soluble limestone, with soluble pillars, karst peaks, karst caves, karst lakes and underground rivers crisscrossing and densely distributed among them. Rhinoceros Lake is a dissolved lake surrounded by mountains. The lake water comes from ground water, falling water and underground water. The river water flows into the underground river through the dissolved pores at the bottom of the lake. Some of the lake water naturally evaporates and disappears. Whenever there is a heavy rain, the lake water carries a large amount of sediment and blocks the dissolved pores. The excessive amount of rainwater accumulated over the years has long been backlogged in the underground channels in the mountains and cannot flow smoothly into the underground river. The more water, the greater the pressure, and The drainage conditions of underground rivers are blocked. In this way, the accumulated water will be affected by the increase in pressure and suddenly release violently, causing the phenomenon of fountains. After a period of time, when the discharge speed accelerates and the incoming water is insufficient, the pressure gradually becomes normal, the underground river is at a normal flow, and the water quickly returns to the underground river and flows into the river.
According to analysis, the amount of water and the cover of dissolved pores at the bottom of the lake have undergone a new change process. In the same way, the reduction of water pressure and the unblocking of dissolved pores are also gradual, and the completion of this entire process takes about 30 years. Therefore, the water in Rhino Lake also waxes and wanes about once every 30 years. Of course, this phenomenon is affected by factors such as meteorology, surface and underground water flow, and human factors, and its period is not absolute. Some people imagine that if the dissolved pores at the bottom of the lake are blocked, the lake water may never disappear.
The phenomenon of Yangshuo lakes coming back to life again and again is very intriguing. So far, scientists have not found the real reason why it happens every 30 years. Therefore, Yangshuo Lake has become an unsolved mystery that still needs to be explored.
The above is the content related to which year the Wuchen Year of the Qing Dynasty was, and it is a sharing about the underground river. After reading the famous porcelain paintings of the Wuchen Year, I hope this will be helpful to everyone!