Located in Southwest China's Yunnna, it's the largest bank of wild plant species in Asia. 

　　This biological 'Noah's Ark ' holds cutting-edge capacities in preservation and refrigeration. 

　　Seeds are preserved in cold storage at -20℃ and could be stored for about 100 to 200 years on average. 

　　It also functions as an international mutual bank, helping overseas countries like the United Kingdom preserve their local species.