China's GDP growth for 2014 is expected to be lowered to 7.4 percent, compared to an estimated economic growth of 7.7 percent in 2013, according to a report released Sunday by the Center for China in the World Economy with Tsinghua University.

China's economy has stabilized in the third quarter of this year, however, external uncertainties, such as the US debt crisis, the slow recovery in Europe, and capital outflows in some emerging economies triggered by the much-anticipated US pullback from its quantitative easing policy, are the main barriers for China's further economic growth, said the report.

Furthermore, Chinese authorities are promoting a series of reforms, which will also restrain the nation's economic growth to some extent, according to the report.