China's reserves, already the world's largest, increased by $7.7 billion in the first quarter
- $146.2 billion less than the same period last year, the People's Bank of China said in a notice on its Web site.
That rise was substantially less than the fourth quarter increase of almost $45 billion, according to China's official Xinhua News Agency, showing the impact of slowing exports due to the financial crisis.
In March, the reserves increased by $41.7 billion, it said, $6.7 billion more than the same period last year.
Analysts believe China holds up to 70 percent of its foreign reserves in U.S. dollar-denominated assets, including Treasury securities.
China's reserves have ballooned as the central bank buys up dollars generated from its huge trade and influx of foreign investment.
While China's economy has slowed due to a plunge in trade and a slump in the domestic real estate industry, recent data show the drop eased in March.
Beijing has taken steps to hold down the price of exports by cutting taxes on exporters and stopping the rise of China's tightly controlled currency, the yuan, against the U.S. dollar. Economists say both steps could strain relations with trading partners if China is seen to be competing unfairly.