epa01830270 A aerobus prepares to land at Changsha airport in Changsha city, capital of Hunan province, China on 20 August 2009. Reported by state media on 20 August , China's regional airlines account for just five percent of the total civil aviation market. It's difficult for residents in many small and medium-sized cities in China to enjoy convenient travel by air. But China's regional airline market has bright future,according to state media reported. EPA/WU HONG