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The Hengduan Mountains () is a large mountainous region in southwest China (latitude: 22°~32°05'N, longitude: 97°~ 103°E), forming the south-eastern part of the Qinghai-Tibet Plateau, and adjacent from the west to the Sichuan Basin. The mountainous region occupies most of the western part of the present-day Sichuan province (the pre-1955 Xikang), as well as the northwestern corner of Yunnan province and the easternmost section of Tibet Autonomous Region. This approximates the historical region known as Kham. Mountain ranges in the southern end of the Hengduan system form the border between Burma and China. The Hengduan Mountains subalpine conifer forests is a palaearctic ecoregion, in the Temperate coniferous forests Biome. ==Geography== The Hengduan Mountains system consist of many mountain ranges, most of which run roughly north to south. The mountains stretch from eastern Tibet to Yunnan and Sichuan. In the southwestern part of the Hengduan Mountain region, three great rivers of China and Southeast Asia - Yangtze (Jinsha), Mekong (Lancang) and Salween (Nujiang) - run in deep parallel valleys separated by mountain ranges that are components of the Hengduan system. The Three Parallel Rivers of Yunnan Protected Areas was created to protect the environment of that region. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hengduan Mountains」の詳細全文を読む スポンサード リンク
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