Introduction to the psammophytic plant area: The psammophytic plant area is on the upper left side of Ziyunyan. The plants planted are mainly cacti and succulents. There are more than 1,200 species (including variants, varieties, etc.) introduced and cultivated. They are the most important species of cacti and succulents in my country. One of the main bases for plant scientific research, science popularization, appreciation and teaching.