An outdoor enthusiast hikes at a mountainous area in Daban City, northwest China's Xinjiang Uygur Autonomous Region, July 29, 2018. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Visitors tour the Xinjiang Garden of the Beijing International Horticultural Exhibition in Beijing, capital of China, Sept. 16, 2019. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Aerial photo taken on April 1, 2019 shows a view in the Altun Mountains National Nature Reserve in northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Aerial photo taken on Oct. 22, 2017 shows the scenery of old town of Kashgar, northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Photo taken on Sept. 10, 2017 shows the wheat fields in Qitai County, northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Aerial photo taken on June 12, 2018 shows a highway in the Taklimakan Desert in northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Photo taken on April 4, 2019 shows wild lily flowers at the Narat scenic spot in northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Aerial photo taken on Aug. 12, 2019 shows a night view of Tekes County in northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Visitors tour the Xinjiang Garden of the Beijing International Horticultural Exhibition in Beijing, capital of China, Sept. 16, 2019. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

A flock of livestock are on a trip for summer pasture, northwest China's Xinjiang Uygur Autonomous Region, on June 6, 2019. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Aerial photo taken on Jan. 1, 2019 shows snow scenery in Kanas, northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)

Photo taken on Aug. 20, 2018 shows a view of the Bayan Bulag grassland in northwest China's Xinjiang Uygur Autonomous Region. Located in northwest China, Xinjiang Uygur Autonomous Region boasts three mountains, namely Tianshan, Kunlun and Altay, and two basins, Junggar and Tarim. Its various landscapes and natural beauties attract tourists from home and abroad. In recent years, Xinjiang has carried out a number of projects, including natural forest protection, returning farmland to forest or grassland, prevention and control of desertification and wildlife protection, to improve local ecological environment. From Sept. 16 to 18, the "Xinjiang Day" event is held at the ongoing Beijing International Horticultural Exhibition to welcome visitors worldwide. (Photo: Xinhua)