The opening ceremony of "Inner Mongolia Day" of 2019 Beijing World Horticultural Exposition is held at Guirui theatre in the expo park on May 16. [Photo/chinadaily.com.cn]

Inner Mongolia will continue to protect ecology with great efforts, said Ma Xuejun, executive vice-chairman of Inner Mongolia autonomous region, at the opening ceremony of "Inner Mongolia Day" of 2019 Beijing World Horticultural Exposition on May 16.

Bu Xiaolin, chairwoman of Inner Mongolia, announced the opening of the Inner Mongolia Day, which included various activities for the coming two days.

"Green is the ground color of Inner Mongolia," said Ma. He called for people from home and abroad to guard the green land together.

Bu Xiaolin, chairwoman of Inner Mongolia, announces the opening of the Inner Mongolia Day of 2019 Beijing World Horticultural Exposition on May 16. [Photo/chinadaily.com.cn]