Introduction to Sanjiang: Sanjiang National Nature Reserve is separated from the Heilongjiang River to the north and the Ussuri River to the east from Russia. It was established in 1994. Among the 198,100 hectares of the reserve, the core area is more than 66,000 hectares and the buffer zone is nearly 30,000 hectares, and the experimental area is more than 104,000 hectares.

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