Introduction to Sanjiangyuan: Sanjiangyuan National Nature Reserve has a core area of ​​31,218 square kilometers, a buffer area of ​​39,242 square kilometers, and an experimental area of ​​81,882 square kilometers. It is the highest altitude and second largest plateau species in my country. It is a super-large national nature reserve with the highest concentration of diversity and is also the first nature reserve group established in China covering multiple ecological types.