"Western China should also focus on upgrading its industrial structure and avoid simply transferring outdated production lines from the east," she said.

With abundant natural resources including coal and oil, western China takes up 71.5 percent of the country's total area. It covers six provinces, including Gansu, Guizhou, Qinghai and Shaanxi, five autonomous regions and Chongqing municipality.

Compared with the wealthy eastern region, western China is less prosperous. In 2010, the region accounted for 18.7 percent of China's fast-growing GDP, while the eastern region took up 53 percent, according to the National Bureau of Statistics.

In the process of accommodating industrial transfer, the region has also matured in its infrastructure, which reduces the cost of logistics and allows it to "attract more and more investments with a comparatively cheap and qualified work force", Hao added.

Foreign direct investment (FDI) to the region surged by 26.9 percent year-on-year in 2010, compared with an increase of 15.8 percent year-on-year in the eastern region, according to the Ministry of Commerce. "The future for the western region (in attracting more investments) is very bright," Hao said.

Jing Junhai, vice-governor of Shaanxi province, said that the province may still rely on investments to boost its economic development "for a long time".

"Priority will be given to attracting more investments during the next five years," he said.

The province's GDP maintained an increase of 14.9 percent during the last five years, reaching 1 trillion yuan ($153 billion) in 2010. In the same year, FDI to the province surged by 35 percent year-on-year to 850 billion yuan.

"We are facing a great development opportunity. FDI this year is expected to break 1 trillion yuan," Jing said.

During the first two months of this year, FDI to the western region as a whole rose to $1.2 billion, up 104.7 percent from last year, three times higher than the national average increase since January, the Ministry of Commerce said.

From 2005 to 2009, the western region maintained 13.7 percent annual GDP increase on average, the highest compared with other regions in the country, official figures showed.