Who knows the feng shui layout of Mount Li and Huangling of Qin Shihuang? (writing needs)

The ancients regarded the choice of cemetery as a great event for the benefit of future generations, especially the feudal emperor Qin Shihuang, who tried to spread it all over the world and naturally paid more attention to the location of cemetery. The reason why he was buried in Mount Li was explained by Li Daoyuan in the Northern Wei Dynasty: "Qin Shihuang built a heavy burial in Mount Li, which was Lantian, with rich yin and beautiful jade. The first emperor was greedy for his good name, so he was buried. " Li Daoyuan's view has been affirmed by most scholars in academic circles. However, some scholars have raised objections. On the one hand, those who hold negative opinions think that the selection of the mausoleum of the First Qin Emperor in Lishan depends on the ritual system at that time, while on the other hand, it is influenced by the traditional concept of "building a mausoleum on the mountain". (See No.5 of Qin Tombs and Cultural Relics Exploration, 1990. ) Now, from the perspective of geomantic omen, the Mausoleum of the First Qin Emperor is also an ideal geomantic omen treasure. As early as the Spring and Autumn Period and the Warring States Period, the concept of building a mausoleum by mountains had already appeared. Later, people chose cemeteries and attached great importance to the geographical environment close to mountains and rivers. "If you build a grave, you must come to the mountains to go to the water." (See "The Secret Buried Sutra of Dahan's Original Mausoleum") Mountains and rivers were regarded as the best places of geomantic omen by the ancients. As for when this concept began, there is no way to verify it. It should be said that the Mausoleum of the First Qin Emperor is a model of "building a mausoleum by mountains and rivers". It is obvious to all that the mausoleum of the First Qin Emperor faces Mount Li in the south and Lishui in the north. However, on the east side of Qin Shihuang's mausoleum, there is also a artificially transformed fish pond water. According to "Notes on Water Classics", "Water flows out of the northeast of Mount Li and flows northward. Later, Qin Shihuang was buried in the north of the mountain. When the water meandered, it turned from east to north, and the first emperor built a tomb to borrow soil. The land is deep and the water accumulates into a pond. This is the so-called fish pond ... The water in the pond flows through the north of the first emperor in the northwest. " It can be seen that the fish pond water originally came from the northeast of Lishan Mountain, and the water flowed from south to north. Later, when the mausoleum of the First Qin Emperor was built, an east-west dam was built in the southwest of the mausoleum. The dam is 1000 meters long, generally 40 meters wide, 70 meters at its widest point and 2 to 8 meters high. It is what people usually call Wuling site. It is this dam that turned the fish pond water originally from Li Dongbei into a northwest flow, bypassing the northeast of Qin Shihuang's mausoleum. In addition, in the east of the cemetery, there is a hot spring water. According to the Water Classic Note, "there is hot spring water in the southwest of fish pond water, which can cure diseases all over the world". "Three" says: "There are hot springs in the northwest of Mount Li." It can be seen that the hot springs of that year corresponded to the fish pond water in the northwest. It is not difficult to find that the geomantic features of Qin Shihuang's mausoleum are that the back mountain faces south, and the east, west and north are surrounded by water on three sides. Isn't "Surrounding the mountains with water" a treasure trove of geomantic omen specially selected by Qin Shihuang's mausoleum? The concept of "surrounding mountains and water" in Qin Dynasty had a far-reaching influence on later generations. Mausoleums in the Western Han Dynasty, such as Gaozu Changling Mausoleum, Wendi Baling Mausoleum, Jingdi Yangling Mausoleum, Wudi Mausoleum, etc., were all chosen by imitating the geomantic thought of "mountains surrounded by water" in Qin Shihuang Mausoleum. Later tombs basically inherited this idea of building tombs.