Suitable climate and favorable geographical conditions. Beijing roast duck is a special food and a world-famous Beijing dish. It originated in the Southern and Northern Dynasties in China. Because of its dry climate, small and concentrated annual rainfall, cold and long-lasting winter, Beijing has superior geographical conditions, which is suitable for the breeding and development of Beijing ducks. Beijing roast duck is a specialty of Beijing and a national geographical indication agricultural product. On September 1 day, 2007, the Ministry of Agriculture approved the registration and protection of "Beijing Duck" as a national geographical indication of agricultural products.