In 2008, one year after a central governmental reshuffle, total fixed-asset investment nationwide was 17.28 trillion yuan, 25.9 percent higher than in 2007, according to NBS data. The year-on-year increase in 2007 was 24.8 percent.

In response to the global financial crisis of 2008, the third year of the 11th Five-Year Plan (2006-10) period, the State Council approved a stimulus package of 4 trillion yuan to protect the economy against a crushing slowdown. A year later, fixed-asset investment surged by 30 percent, the highest rate in the last decade. It slowed to 23.8 percent in 2010.

This economic cycle was also evident in the period from 1997 to 2001.

However, the phenomenon may not be repeated in the 12th Five-Year Plan (2011-15) period, Fan said, explaining that investment growth has been "abnormal" in recent years.

High inflation and surging housing prices are two obstacles that may cause Chinese authorities to think before taking another step toward investment stimulus, although there have been signs that these factors are cooling, Fan said. He added that the consequences of the 4 trillion yuan package may also help China's economy if investment grows quickly.

Wang Tao, head of China economic research at UBS Securities, pointed out that the central government's annual economic conference did not stress the advancement of urbanization as it has before.

"Instead, the conference emphasized the projection of social welfare and creating more job opportunities for migrant workers, which indicates that increasing investment may no longer be the most important task to sustain a high growth rate," she said.

Li Qiang, deputy director of the NBS, admitted that local governments do influence investment data, as GDP is the most important assessment criterion for their work.

China's fixed-asset investment statistics are given to the NBS by authorities, rather than companies, which raises the risk of fake data, Li said.

Gardeners plant trees and flowers at the Hong En Si Park in Chongqing in 2009. The park has become famous for its 57 varieties of 10,000 sweet osmanthus. [He Zhongrong / for China Daily]

Risky business

The main contractor on the Hong En Si Park project, Chongqing Construction Engineering Group, had credit of 13.48 billion yuan by the end of 2008, up from 10.43 billion yuan in 2007. Meanwhile, its debt accounted for 90.34 percent of its assets, climbing 2.52 percentage points from 2007.

By the end of September 2010, its debt reached 24.93 billion yuan, 88.93 percent of its total assets.

Most of the company's projects for the municipal government have limited profitability, such as Hong En Si Park, which is free to the public, except on holidays.

"This company has relatively high debt risks," said a report from Dagong Global Credit Rating, which added that the pressures facing Chongqing's financing platform could mean debt default risks for the contractor, too.

"We have financial difficulties, as the investment is huge," said Peng Yong, director of the city finance bureau's agricultural office. "To make sure we have enough money, the key is to promote special financing platforms and increase the money borrowed from commercial banks."

Deputy Secretary-General of Chongqing Zhao Qiang told Reuters that, by the end of September 2011, credit from the local financing platform was 180 billion yuan, 20 percent of the city's 980 billion yuan GDP. "Currently, it is safe," he said.

According to data from the National Audit Office, the Chinese government has a debt-to-GDP ratio of 43.9 percent, which is still lower than the internationally recognized "fire line" of 60 percent. A central audit in June 2011 showed there are 6,576 investment projects across China, putting total debt at 4.97 trillion yuan.

However, experts with the Ministry of Finance said that the debt default risks are increasing, as 20 percent of governments at municipal level already have a debt-to-GDP ratio of more than 100 percent.

Analysts say the previous injection of money by the central government has unbalanced the books of local authorities and spurred the country's banks to lend.

Some government-led projects, such as highways in Gansu province and a grand stadium in Hunan province, have seen a growing debt level, leading to questions on the sustainability of such investments.

"If the new leaders continue to make investments in large scale, we'll see the country get into the trouble that European countries are in today," said Fan at the State Information Center.

Some economists predict the investment pace may continue to slow this year, although local governments will reshuffle again.

"A modest investment increase would be appropriate to counter the international situation," said Ross at Standard Chartered Bank. "Investment is expected to increase in affordable social housing."

Wang at UBS Securities added that the continued strong growth in social -housing construction and investment is expected to partly offset the weakness in the property market.

Investment in social housing can help prevent a hard landing, and total property investment may grow by as much as 20 percent this year, Wang added.