The salary gap between China's first- and second-tier cities will narrow this year as the nation speeds its urbanization process, human resource experts said on Thursday.

China's single-digit economic growth is unlikely to impact recruitment in 2013, and job applicants with better knowledge of local markets will find it easier to get employment, said a survey released by Robert Walters Plc, a United Kingdom-based recruitment consultancy.

Overall salary levels in China will be "slightly higher" than in 2012, with candidates moving jobs usually able to get a 15 to 25 percent pay increase, according to the survey. Those who stay put will get rises of around 8 percent, which corresponds with the World Bank's estimate in January that China's 2013 GDP growth could reach 8.4 percent.