Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]

Covering 117, 000 square kilometers, the Nyingchi Prefecture, in southwest China's Tibet Autonomous Region, is well known for its humid and mild climate, charming scenery and rich natural resources.[Photo/China Tibet Online]