Tianjin strengthens ecological and wetland protection for green development

Stitched aerial photo taken on April 1, 2019 shows the scenery of Huangyaguan Great Wall in Jizhou District of Tianjin, north China. May 5 marks the opening of "Tianjin Day" theme event at the Beijing International Horticultural Exhibition in Beijing. The city strengthened ecological and wetland protection under the theme of "eco-friendly Tianjin, green development." (Xinhua/Wang Jianhua)