楼兰消亡原因新探——毁于水涝

New Explanation for the Loulan Disappeared: Waterlogging

楼兰是我国历史上西域三十六国之一 ,位于现今新疆巴音郭楞蒙古自治州若羌县境内 ,公元四世纪前后消亡 ,190 0年由瑞典探险家斯文·赫定重新发现。关于楼兰古国的消亡 ,比较多的学者认为是因干旱缺水。作者经实地考察后认为 :楼兰古城的消亡原因可能不同于新疆的其它古城 ,是先涝后枯 ,即毁于水涝。楼兰古城毁于水涝的证据包括 :古城区位于局部地理洼陷中心 ,并为现代湖盆泥质沉积所覆盖。楼兰毁于水涝给我们的启示是西部干旱区的城镇规划建设也要防涝防洪。

Loulan, located at today's Ruoqiang County, Bayinkuolen Mongolia Autonomy State, is one of thirty-six states in Western Regions of China. It disappeared at about AC 4ch Century, found by Sweden explorer Sven Hedin in 1900. Some scholars think that the reason of Loulan's disappearance is drought and water short. The author regards, after reviewed on the spot, that the true reason of Loulan's disappearance probably is not the drought like other ancient cities in Xinjiang but the waterlogging. The evidences proving the reason of Loulan's disappearance are the Loulan city is at the center of part geographical low-lying and the city is covered by argillaceous deposition of lake basin. The Loulan's disappearance tells us that town planning in Western Regions should prevent waterlogging and flood nowadays.