戈壁中的新疆罗布淖尔及周边地区,在汉晋时期曾是一片水网密布之地,不仅水草丰美,人口繁衍,更是交通枢纽所在,汉朝使者由此往西,便可至诸国林立的西域,因而该区域扮演了西域门户的角色。楼兰恰好地处该区域之中,这个早已湮没于世的西域古国,引起了后人无尽的遐想(图一)。近世学者虽然从学术角度对其进行了不懈的探索,并取得了丰硕的成果,但在一些重要问题,如楼兰国国都所置何在?该区域其他古城的性质究属?学界仍没有取得一致的结论。根本原因除了材料的稀缺 The Gobi Desert in Xinjiang and the surrounding areas, was a water network during the Han and Jin Dynasties, not only the abundance of water plants, population growth, but also the transport hub, the Han Dynasty messenger from west to mainland China can be The western region, and thus the region played the role of a gateway to the Western Regions. Loulan happens to be in the region, which has long been lost in the ancient land of the Western Regions, aroused endless reverie descendants (Figure 1). Although recent scholars have made unremitting explorations and made fruitful achievements from an academic point of view, what are some important issues such as the establishment of the State of Loulan? The nature of the other ancient cities in the region is still unanimous in conclusion. The root cause in addition to the scarcity of materials