Tourists visit a populus euphratica, or desert poplar, forest in Jinta County, Northwest China's Gansu Province, Oct. 5, 2018. Covering 5,300 hectares, the forest in the west of the county is an important part of Three-North Shelter Forest Program, a national ecological engineering effort. (Photo: China News Service/Gao Hongshan)
Tourists visit a populus euphratica, or desert poplar, forest in Jinta County, Northwest China's Gansu Province, Oct. 5, 2018. Covering 5,300 hectares, the forest in the west of the county is an important part of Three-North Shelter Forest Program, a national ecological engineering effort. (Photo: China News Service/Gao Hongshan)
Tourists visit a populus euphratica, or desert poplar, forest in Jinta County, Northwest China's Gansu Province, Oct. 5, 2018. Covering 5,300 hectares, the forest in the west of the county is an important part of Three-North Shelter Forest Program, a national ecological engineering effort. (Photo: China News Service/Gao Hongshan)
Tourists visit a populus euphratica, or desert poplar, forest in Jinta County, Northwest China's Gansu Province, Oct. 5, 2018. Covering 5,300 hectares, the forest in the west of the county is an important part of Three-North Shelter Forest Program, a national ecological engineering effort. (Photo: China News Service/Gao Hongshan)