早期夏文化研究中的几个问题

Some Questions of Researching the Early Xia Culture

夏商周断代工程中的早期夏文化研究，在确定研究目标和研究方法后，对早期夏文化遗存进行了年代学研究，着重讨论其相对年代和绝对年代。工程指认早期夏文化即为河南龙山文化晚期（或称王湾三期文化）和二里头文化早期遗存，并将夏文化的始年推定在公元前２１世纪。

After deciding the research goal and methods, the Project of the Chronology of Early Chinese History in the Xia, Shang and Western Zhou dynasties researches the remains of the early Xia culture in chronology, emphatically discusses the relative and absolute age of the culture and points out that the early Xia culture includes the late Longshan culture of Henan (also called the third period of Wangwan culture) and the early Erlitou culture and the beginning age of Xia culture is 21 century BC.