三江源自然保护区位于青藏高原腹地的青海省南部。著名的长江、黄河及澜沧江发源于此,故得名“三江源”。三江源作为全球高海拔地区的一个独特自然环境,有一系列迥然有别于低海拔环境的基本自然特征。全年无四季之分,年平均气温在0℃以上,风雪频繁,空气中氧含量仅为海平面的50%～60%, Sanjiangyuan Nature Reserve is located in the hinterland of Qinghai-Tibet Plateau in southern Qinghai Province. The famous Yangtze River, the Yellow River and the Lancang River originated here, hence the name “Three Rivers”. As a unique natural environment at high altitude in the world, Sanjiangyuan has a series of basic natural features that are very different from the low-altitude environment. No four seasons of the year, the annual average temperature above 0 ℃, frequent snow, oxygen content in the air is only 50% to 60% of the sea level,