1. Thermal expansion effect: Five lotus flat stones expand due to exposure to the scorching sun during the day and shrink due to cold at night, resulting in thermal expansion and contraction. In addition, five lotus flat stones contain many types of minerals and have different expansion parameters, leading to a greater occurrence of detachment or clumping.

2. Freezing and thawing can also cause weathering of the Wulianghua Pingshi: when the stone drops below 0 degrees Celsius, water meets the stone and freezes, causing the Wulianghua Pingshi to absorb water and expand into ice, resulting in the collapse of the Wulianghua Pingshi.

3. The role of mosses: Under suitable water and temperature conditions, the spores of mosses attach to the surface of the five lotus flower flat stone, grow and develop, causing various colored spots to appear on the surface. These mosses fight against carbon dioxide, sulfur oxides, nitrogen oxides, and other pollutants in the air to survive, changing the outer surface structure of the five lotus flower flat stone. After the death of these moss fungi, they hydrate to synthesize organic acids, which accelerate the aging of Wulianghua Pingshi and cause it to undergo erosion.

4. Under scorching sun: The Five Lotus Plain Stone itself has many pores, and the smaller the capillaries, the more obvious the phenomenon. Therefore, after absorbing water, under the radiation of sunlight, the evaporation of water in the pores of Wulianghua Pingshi accelerates. There are substances in the water that have a significant erosive effect on Wulianghua Pingshi, leading to an accelerated erosion rate and aging of Wulianghua Pingshi