Green 'gene bank' helps to preserve world's flora

Spared the ravages of the ice age, the Changbai Mountains are home to a diverse range of plants and animals from across the globe

Editor's note: As the People's Republic of China prepares to celebrate its 70th anniversary on Oct 1, China Daily is featuring a series of stories on the role regions have played in the country's development and where they are today.

As a forest ranger for three decades, nothing much fazes Wang Wei in the wild.