Xi: Green development key to building a beautiful China

Xi recollected his memories of the Chinese capital when he was young. "I grew up in Beijing, and I often think about trees when it comes to nostalgia," he said.

He called for planting a wider variety of trees while enhancing the nation's afforestation efforts and striving to build Beijing into a beautiful, verdant city.

Other leaders, including Li Qiang, Zhao Leji, Wang Huning, Cai Qi, Ding Xuexiang, Li Xi and Han Zheng, also participated in the tree-planting activity in Beijing.