摘要
楼兰古城是古丝绸之路上位于中亚的重要通道站，但后因历史上气候周期变化及平原湖泊河口三角洲淤积使河流自然改道的地理原因，在公元前开始至3世纪进入楼兰的河水逐渐减少，最终主河道变迁而使楼兰城南北河干涸，环境迅速恶化，导致楼兰消亡。
Located in the central Asia, ancient Loulan City was a place of strategic importance to the ancient Silk Road. According to the historical records, it was flourishing during the period from the second century B. C. to the third century A. D. However, it was disrecorded suddenly until it was discovered by a Swedish exploration party in 1900. Loulan is situated on the west bank of Lop Nur Lake and the delta of the Tarim River (40°29'55'N, 89°55' 22'E), and occupies a land area of 108 240m2. Two main tributaries of the Tarim River passed by its northern and southern sides respectively and converged into Lop Nur Lake about 100km eastward.Human civilization of the Loulan City had been developed in the Stone Age, which was revealed by a lot of stone implements found in the region, and the discovery of the corpse of 'Loulan Beauty' proves the continuity of economic development. During several centuries around the Christian era, Loulan had become a place of strategic importance on the Silk Road because its superior geographical position and natural conditions. The withering of ancient Loulan City was caused by natural change of the river courses and rapid environmental deterioration.
出处
《干旱区地理》
CSCD
北大核心
1997年第3期7-12,共6页
Arid Land Geography
