Photo shows the beautiful scenery of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forest covers 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)

Photo shows the landscape of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forest covers 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)

Photo shows the landscape of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forest covers 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)

Photo shows the landscape of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forest covers 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)

Photo shows the landscape of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forests cover 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)

Photo shows the landscape of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forest covers 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)

Photo shows the landscape of spruce forest in Bomi country of Nyingchi, southwest China`s Tibet Autonomous Region. With an area of 4,600 hectares, the forest covers 61 percent of the area. It was listed as a coniferous nature reserve in 1984. (Photo/China News Service)