China's trade surplus might go down to about $100 billion this year, and the country should keep reducing the percentage of GDP made up by trade, China Securities Journal cited Li Daokui, an adviser to the Chinese central bank's monetary policy committee, as saying.

Li said on Saturday that China's trade surplus could decrease from $180 billion last year to $120 billion this year, or even $100 billion, down 44 percent year-on-year. At the same time, the percentage that trade surplus makes up of GDP will fall to less than 2 percent.

The economist also suggested that China gradually reduce the proportion of trade surplus in GDP.