1、Lou Lan,Location,A tribal （部族）in han dynasty。They live in the eastern of xinjiang and the northwestern margin （边缘）of LuoBuBo(罗布泊).Their capital is the famous loulan city.,Ancient tea horse road (茶马古道),According to records, then the loulan economy is prosperous(繁荣) , it is a majestic（宏伟） border town.
2、A booming (兴旺) country in “silk road”. China silk, tea, grapes, jewelry through loulan for sales transaction . When caravans(商队)go through , they must stop to have a rest.,Loulan city was once peoples paradise. It surrounded by clear river , people on fishing, boating in blue stream(溪流).But after so
3、me events, the old city eventually disappeared.,Exploration,In 1901, Sweden explorer Sven Heding under the help of the local guide in north LuoBuBo found the “ancient city”.Through the analysis,Heding firmly believed here is loulan, his discovery stunned（震惊） the world.These work becomes the importan
4、t geographic loulan expedition after basis.,Why LouLan disappeared?,After entering cooling area of soil and water environment becomes poor, river, lake shrink(收缩), accelerate desert expansion. Tibetan plateau uplift outside is the most important cause of regional. The uplift of northwest China is climate decisive role. During this period, human activity intensifies（增强），stream changes and war damage, make environment worsening.,Reasons,The beauty of loulan,So far, brilliant loulan city will forever silently faded away from history . Sand, is still the loulans territory, death kingdom.,Thanks!,
