The 8-magnitude earthquake that devastated Sichuan province on May 12 would seriously hamper tourism in affected regions in the short term, industry insiders have said.

China National Tourism Administration (CNTA) has ordered all travel agencies to cancel trips destined for, or passing through, quake-affected areas, and the local tourism industry's major players are already feeling the pinch. The administration also requested tourists refrain from visiting these areas in the near future.

Shanghai Spring International Travel Service spokesman Zhang Lei said: "We haven't yet calculated the economic losses caused by the quake, but I'm sure they will be huge."

Sichuan-bound excursions are among the most popular of the firm's travel packages, generating about 10 percent of its total domestic travel revenue.

"Given the difficulties of restoring the damaged infrastructure, it would be difficult to resume trips to Sichuan in the short term, even if the CNTA were to allow us to organize them," Zhang said, adding that many tourists would be reluctant to visit affected areas for some time because of the "psychological shadow" cast by the disaster.

When the quake struck on May 12, 298 tourists were on Shanghai Spring International trips in the province, including 281 visitors from Shanghai and 17 from Shanxi province. They had all been safely returned home by May 21.

Many customers bound for other regions in China cancelled their trips with the company after the quake. Zhang said part of the reason was that the natural disaster cast a "psychological shadow" over the entire nation.

"Everybody is busy trying to help the victims, and so sightseeing and relaxation seems inappropriate at the moment," Zhang said.