试论隋唐东西两京布局差异的成因

On the Cause of formation of the Difference in Layout between the Western and Eastern Capitals of the Sui and Tang Periods

隋唐长安城和洛阳城因在政治、经济、文化等方面有诸多的相似性，在当时就被称为东西两京。但二者的布局差异之大，令人费解。许多学者对此提出了不同的看法，但仍没有一个合理的解释。本文拟在前人研究基础上，对流行的几种观点予以评述，提出自己的观点，并求教于方家。

The cities of Chang＇an and Luoyang were both international metropolises in the Sui and Tang periods. They have been studied in modern academic circles for approximately half a century, and their appearance has been reconstructed on the whole. Concerning their distinct difference in building form, there have been divergent opinions on the cause of formation. Some scholars hold that Chang＇an as the capital of the country was higher than Luoyang in position and so their architectural difference was necessary for the sake of ritual; but the others argue that it was due to the factor that Luoyang was an unfinished city. The present paper believes the former understanding to be more substantiated and correct because in architectural concept, ritual building, practical political activity, building experience, military force and lineup of officials as well as in influence upon the capitals of surrounding countries, Chang＇an showed itself to be a genuine capital, while Luoyang was merely a great city lower than Chang＇ an in position. They were not in the same grade.