Abstract: As a regional agricultural and cultural landscape, tea gardens can not only produce high economic value, but also provide people with a variety of ecosystem cultural services such as recreation, education and spiritual healing. However, the efficient and accurate identification and quantification of the ecosystem cultural services of tea garden landscapes remain a challenging research issue. This study took the Xihu Longjing tea gardens in Hangzhou as a case study. By selecting travel blogs and short articles from online social media platforms such as Ctrip and Sina Weibo, and utilizing keyword frequency and semantic network analysis, we quantitatively assessed the ecosystem cultural services of the Xihu Longjing tea gardens based on public cultural perception. Grounded theory was used to construct an evaluation index system for the tea garden's ecosystem cultural services, and the Importance-Performance model was employed to analyze the structure and quality of tourists' cultural experience elements. The results indicate that tourists pay high attention to specific scenic spots, cultural perceptions, and environmental perceptions within the Xihu Longjing tea gardens. Their perceptions reflected a cultural cognitive model centered on the tea garden's attractions, with cultural experiences extending outward. Overall, tourists had a positive satisfaction rating towards the cultural services of the tea garden ecosystem, with the highest satisfaction related to the pleasure and relaxation experienced. However, there are significant perceptual differences in tourists' attention and satisfaction with different categories of cultural services in tea gardens, especially in the cultural service of ‘enjoying the beautiful scenery’ that tourists are most concerned about, their satisfaction is lower than the overall average level. Therefore, future planning and management should prioritize the enhancement and improvement of the aesthetic quality of the tea gardens. This paper proposed a method for identifying and evaluating the ecosystem cultural services of tea gardens using social media data from the public perception perspective. This approach proposed technical support for the optimization and sustainable, diversified development of tea gardens and other cultural landscapes.

Key words: ecosystem services, public perception, textual semantic analysis, regional characteristics