Photo taken on Oct. 9, 2018 shows the trees of populus euphratica at the Jinta desert forest park in Jiuquan City, northwest China's Gansu Province. The populus euphratica is a saline-tolerant species which grows well in desert. (Photos: Xinhua/Wang Chun)

Photo taken on Oct. 9, 2018 shows the trees of populus euphratica at the Jinta desert forest park in Jiuquan City, northwest China's Gansu Province. The populus euphratica is a saline-tolerant species which grows well in desert.

Photo taken on Oct. 9, 2018 shows the trees of populus euphratica at the Jinta desert forest park in Jiuquan City, northwest China's Gansu Province. The populus euphratica is a saline-tolerant species which grows well in desert.

Photo taken on Oct. 9, 2018 shows the trees of populus euphratica at the Jinta desert forest park in Jiuquan City, northwest China's Gansu Province. The populus euphratica is a saline-tolerant species which grows well in desert.