This paper aims to explore the impact of urban waterside plant landscape on tourist experience, and construct an evaluation system to evaluate its landscape benefits, so as to provide optimization strategies for plant landscape design, and enhance the tourist attraction of waterside and enhance tourist experience.

Taking the Changde Chuanzi river scenic belt as the evaluation object, the obtained evaluation results are used to propose relevant optimization strategies for plant landscape construction. Using field research methods to obtain tourists' perception of plant landscapes and the basic information of plant landscapes of the evaluation objects; a beauty evaluation system was constructed consisting of 1 objective layer, 4 criterion layers, and 16 indicator layers using the analytic hierarchy process, and calculate the weights of the evaluation indicators to obtain the top five ranked indicators; Using the evaluation system as a scoring reference, invite experts to score and obtain relevant indicator scores; Then input the scores of each indicator into the landscape benefit evaluation model and calculate the final value.

The plant landscape efficiency score of the Chuanzi River scenic belt is 3.49, and the overall evaluation is average; The evaluation is good in terms of generating comfort, accessibility of plant space, and leisure and recreation indicators; However, the score on the indicators of strong hierarchy of plant configuration and adaptability to landscape architecture is not good, and the evaluation is average. Based on the scores of various indicators and combined with tourist experience perception, formulate relevant optimization strategies.

In the evaluation system of urban waterfront plant landscape benefits, the ecological benefits (0.387) in the criterion layer are ranked first, followed by aesthetic benefits (0.316), humanistic perception benefits (0.152), and recreational space benefits (0.145). The top five evaluation indicators in the indicator layer are coordination with the surrounding environment (0.107), plant community diversity (0.107), improvement of environmental quality (0.107), generation of comfort (0.097), and spatial hierarchy of plant landscape (0.096). In addition, improving environmental quality, having a strong sense of hierarchy in plant configuration, providing novel and exciting experiences, and adapting to landscape architecture have poor scores, which affects the overall score situation. Develop plant landscape optimization strategies from three aspects: creating an immersive sensory experience in plant landscape space, strengthening the hierarchical relationship of plant community structure, and emphasizing the co creation of plants and other landscape elements.

As a public space that showcases the historical heritage of a city, the degree to which historical authenticity is restored within the historical and cultural district will affect the perception of visitors towards the historical and cultural district; Therefore, by constructing an evaluation system for the authenticity of urban historical and cultural blocks, taking Changde Hejie as the evaluation object, relevant optimization strategies are proposed for the authenticity creation of historical and cultural blocks using the obtained evaluation results.

Using text analysis to analyze the online review content of Hejie and obtain the overall evaluation effect of the user on Hejie; Construct an authentic perception evaluation system consisting of 1 objective layer, 2 criterion layers, 7 indicator layers, and 22 influencing factors using the Analytic Hierarchy Process; Based on the evaluation system, develop a questionnaire for evaluating the authenticity of Hejie, and obtain relevant indicator scores by scoring different groups of people; Then, substitute the scores of each indicator into the original perception evaluation model, and use regression analysis to determine the path coefficients between the evaluation indicators.

The online evaluation content of Hejie showed a positive trend; Through the analysis of path coefficients, it was found that the generation of authentic perception of Hejie lied in the degree of historical restoration (0.355) and the perception of historical atmosphere (0.390), among which landscape environment (0.727), street landscape (0.452), and architectural form (0.449) played a dominant role. Historical and cultural cognition (0.105) was relatively low in the indicator layer, and night scenery (0.013) was the lowest in the influencing factors.

The authenticity awareness of Changde Hejie is mainly obtained through two parts: the material space with the perception of historical authenticity and the sense of place in the neighborhood that showcases historical culture; There are five main ways to enhance its authenticity awareness, including improving the quality and effectiveness of nighttime landscapes, constructing digital historical and cultural blocks for tourism, increasing special commercial stores with experience and participation, constructing public cultural exhibition halls, and strengthening the participation of surrounding residents.

As one of the urban tourism landscape resources, the beauty creation of the internal plant landscape of a park will have a certain impact on the experience of viewing the park; Therefore, by constructing an evaluation system for the beauty of urban park plant landscapes, taking Baima Lake Park and Dingling Park as evaluation objects, relevant optimization strategies for park plant landscape creation are proposed based on the obtained evaluation results.

Using field research method to obtain the basic information of the plant landscape of the evaluation object; Construct a beauty evaluation system consisting of 1 objective layer, 3 criterion layers, and 12 indicator layers using the analytic hierarchy process, and calculate the weights of the evaluation indicators to obtain the top five ranked indicators; Place the evaluation system in the scenic beauty evaluation method, and obtain the relevant indicators of scenic beauty values through expert scoring; Then input the beauty values of each indicator into the beauty evaluation model and calculate the final value.

Both Baima Lake Park and Dingling Park had a relatively rich variety of plant species, with Dingling Park having a higher overall plant landscape beauty value than Baima Lake Park; Through the analysis of the beauty values of the first five indicators, it was found that there were certain common problems in both parks; Based on the value of beautiful scenery and combined with urban cultural and tourism needs, formulate relevant optimization strategies.

In the evaluation system of plant landscape beauty in urban parks, the hierarchy of plant configuration (0.101), diversity of plant morphology (0.100), decoration of plants (0.092), observability of plant landscaping (0.091), and spatial expansion of plants (0.090) in the indicator layer are ranked as the top five evaluation indicators; In terms of spatial expansion and decoration of plants, the scores of the two parks are balanced with little fluctuation; However, there are differences in scores and overall fluctuations in the hierarchy of plant configuration, diversity of morphology, and observability of plant landscaping; Develop plant landscape optimization strategies from three aspects: creating theme atmosphere, integrating business formats to enhance experience, and strengthening vertical effects of plant landscapes.