The Relationship Between Frontier Poem And Change Of Boundary In Tang Dynasty From Perspective Of Some Geographical Names

The frontier poem is an important theme in poetry of the Tang Dynasty. Inevitably, some geographical names will be referred in fortress poetry. These geographical names are always some important strategic points. So some military information can be found in these poetry through these geographic names. However, under different circumstances, the special meaning of these geographic names will be different. Thorough the research of the special meaning of these geographic names, we can learn about the special disaster of foreign invasion on the border.Three chapters are included in this dissertation:In the introduction, the purpose and significance of this paper will be introduced. It will give the research review and some research prospects on this topic. Some related definitions will also be clarified.In chapter one, the dissertation will discuss some important geographic names and their special meaning, especially Dai, Ji and Liao, which have a great distance from each other but always appear in one screen. The reason for this phenomenon is that under the military pressure of East Turkestan in the early Tang Dynasty, these places mentioned above is always under military confliction. And after An-Shi Rebellion, the military center of Tang Dynasty transferred from northwest to northeast. So the number of frontier poetry about the northwest decline and that about the northeast incline, correspondingly.In chapter two, the question of utilitarianism and frontier consciousness will be raised.In the early Tang Dynasty, people longed for pursuing military merits through join an army and march to the frontier. After An-Chi Rebellion, the territory of Tang Dynasty shrinked sharply. The military strength can no longer match to that in the early Tang Dynasty. So, in the frontier poems, the utilitarianism can hardly be seen.In chapter three, the awareness of critical consciousness and some introspection of the defense function will be discussed in this section. Thorough comparative analysis between Qinghai and Hehuang frontier poems, we can see some opinions toward Tang Dynasty Tubo military policy. These frontier poems also made an investigation toward the defense function of The Great Wall. In their mind, some concrete defense works can never be important, the morality of the emperor, which decided the fate of this empire, is something really pivotal.