Does anyone know why there are stones here?

The arrangement of stone piers on the water surface can play a role in fixing and protecting, which is common in some water conservancy projects.

First of all, stone piers can fix the position of the water surface and prevent water erosion and erosion. In some water conservancy projects, such as dams, in order to prevent water from scouring and destroying the project, it is necessary to put some fixing devices on the water surface, and stone piers are one of them. Stone piers can increase the friction and resistance of the water surface and slow down the speed of water flow, thus playing a role in fixing the water surface.

Secondly, stone piers can also protect waterfront and aquatic animals and plants. In some lakes, rivers and other waters, the living environment of aquatic animals and plants needs protection, and the waterfront also needs support and protection. By placing stone piers on the water surface, a barrier can be formed to prevent water from scouring the shore and the habitat of aquatic organisms, and at the same time, some hidden and protected environments can be provided for aquatic animals and plants.

In a word, arranging stone piers in rows on the water surface is to fix and protect the water surface and aquatic environment, and is widely used in water conservancy projects, water ecological protection and scenic spot construction.