中文摘要：

过去10年中，伴随互联网和移动互联网技术进步．旅游者围绕目的地的内容生产活动空前活跃，推动着旅游目的地意象加速更新。在此过程中，旅游目的地意象究竞发生何种变化？旅游目的地意象为何发生上述变化？这两个问题至今尚未得到很好的解答。文章以苏州作为目的地案例，通过对10年间（2006-2015）在线旅游博客文本的内容分析，解析苏州旅游目的地意象变迁的动态特征，探索推动苏州旅游目的地意象动态变化的动力机制。文章首先通过文献回顾，解析旅游目的地意象具备固化和更新的基本特性；进而基于关键词频和语义网络分析结果，研究发现苏州目的地意象固化主要体现在苏州园林高度符号化凝结，而苏州目的地意象更新则主要反映在平江路和观前街等历史文化街区开始逐渐获得游客青睐。结论认为：在苏州案例中，地方政府、市场组织、当地居民和旅游者间的协商互动是导致旅游目的地意象发生固化和更新的主要动力：为了推动旅游目的地意象实现有机更新，避免旅游目的地意象陷于某种僵化，必须采取措施吸引以上4类群体积极协调地投入目的地意象建构活动之中；现阶段的当务之急是加快制度建设，帮助当地居民和旅游者获得能够与地方政府和市场组织相互对话的地位和协商平台。

英文摘要：

In the last decade, the great progress in information and mobile Internet technologies has been good for the tourism industry. Consequently, tourists are intensively engaged in generating destination content for the Internet, which promotes the acceleration of destination image renewal. What changes are made to the destination image during this process？ Why do these changes take place？ Those two related and key questions have not yet been answered. In the last forty years, researchers have focused on the concept, structure, and effect of tourism destination images. However, less attention has been given to the process of tourism destination image evaluation. To solve these problems, this paper takes Suzhou as a study case to analyze the Suzhou destination image＇ s dynamic features and explore the dynamic mechanism that promotes the evaluation of Suzhou destination images through analyzing the contents of online travel blogs. This paper consists of six parts. The first part introduces the research background. In the second part, a literature review explores the progress of research on the solidification and renewal of tourism destination images. In conclusion, the research literature shows less concern about the dynamic mechanism of tourism destination evaluation from the perspective of tourism suppliers and tourists. The third part comprises the research design. Destination marketing organizations are dedicated to promoting their destination using all kinds of media in the form of texts and images; therefore, qualitative materials gradually become a core resource to understand the destination image evaluation process. Qualitative methods were used as the best methodology for the current research because of easy access to relevant materials on the Internet. In particular, the current paper first collected online travel blogs about Suzhou between 2006 and 2015. Two hundred and forty-four travel blogs were collected, which produced an approximately 300,000-word text. ROSTCM6, a qualitative software, was used