一、西藏的自然環境和藥材資源西藏是我國西南的邊疆,东接西康,北連新疆和青海,南與印度、尼泊爾、不丹為鄰,境內多高山峻嶺,是世界第一高原。喜馬拉雅山和岡底斯山是境內有名的高山。岡底斯山横貫西藏中部,把西藏分為南北不同的二部:北部地區多半是廣大石質寒漠和湖區地帶,是樹木稀少的草原遊牧區,其平均高度約為 I. Natural Environment and Herbal Medicine Resources in Tibet Tibet is the borderland of southwest China. Xikang connects to the east, Xinjiang and Qinghai in the north, and adjacent to India, Nepal and Bhutan in the south. It is the highest plateau in the world. The Himalayas and Gangdise are famous mountains in the country. The Gangdise Mountains traverse the central Tibet, the Tibet is divided into two different north-south: the northern part of the vast majority of stony desert and the lake zone, is a rare grassland nomadic area, the average height of about