Spatial-Temporal Pattern of Mismatch Degree of High-Quality Tourism Development and Its Formation Mechanism in Taihu Lake Basin, China

High-quality development is the theme of China’s economic and social development in the new era, the only way to build a powerful tourism economy, and also the objective demand to solve the practical problems and promote the transformation and upgrading of tourism. However, problems such as inefficient operation, environmental pollution, and slow industrial upgrading have become prominent in the development process of China’s tourism industry in recent years, in which a gap exists with the realization of high-quality development goals. Therefore, scientific control of the gap and deviation between the actual development level and the high-quality development goals of tourism is helpful for promoting the green and sustainable development of regional tourism. This study, taking the Taihu Lake Basin as an example, made a systematic and comprehensive evaluation of the spatial-temporal pattern of high-quality development mismatch of tourism from 2010 to 2019, using the health distance model to analyze its spatiotemporal evolution characteristics, and combining the obstacle degree model and qualitative comparative analysis of fuzzy set to analyze its influencing mechanism. The empirical results show that: (1) the mismatch degree of high-quality development of tourism in the Taihu Lake Basin shows a downward trend, and the regional imbalance is prominent, showing polarization characteristics; (2) among the six systems, only the green system and the cultural and tourism resource system are in the matching type, the dominant system of mismatch type is different in each city, and it shows the characteristics of the transformation from external environmental obstacle to internal environmental obstacle in the process of transition from mismatch type to matching type; (3) the spatiotemporal pattern of highquality development mismatch of tourism is the result of six systems working together, in which the innovative development system is the core driving force, the coordinated development system is the potential driving force, the green development system is the direct driving force, the open development system has the guiding function, the shared development system is the external driving force, and the literature and tourism resource system is the basic driving force. Therefore, the paper puts forward three types of combination paths and corresponding suggestions that can promote the transformation and upgrading of tourism and achieve coordinated development of the Taihu


Introduction
High-quality development is the theme of China's economic and social development in the new era. The proposal of the CPC Central Committee on the formulation of the 14th Five-Year Plan for National Economic and Social Development and the Long-term Goals for the year 2035 emphasizes that high-quality development will run through the country's economic, social, cultural, ecological, other fields, and the whole process. In the great journey of building a well-off society in an all-round way, China's GDP has achieved system of high-quality development of tourism. Therefore, it is of great significance to analyze the spatiotemporal pattern of the high-quality development mismatch of tourism at the basin level.
Based on this, taking Taihu Lake Basin as an example, we undertook a systematic and comprehensive evaluation of the content system, characteristics of mismatch types, restricting factors, and inherent potential of the high-quality development of tourism. Firstly, the evaluation index system of high-quality tourism development was constructed scientifically based on the "Five Development Concepts". Secondly, we used the health distance model to analyze the spatiotemporal characteristics of the high-quality development mismatch of tourism from 2010 to 2019. Thirdly, combining the obstacle degree model and qualitative comparative analysis of fuzzy set, we analyzed the main obstacle factors and formation mechanism of high-quality tourism development. Finally, development paths and suggestions for high-quality tourism development of Taihu Lake Basin are put forward.
This research not only has theoretical value but also has practical significance for the green and high-quality development of tourism of the Taihu Lake Basin and other regions. On the one hand, it can fill the gap in the research on high-quality tourism development from the new ideas and new perspectives at the basin scale and enrich the research content system of tourism development; on the other hand, it can provide guidance and reference for the transformation and upgrading and the improvement in the quality and efficiency of tourism and coordinated development of regions, which can promote China's economic growth.

Study Area
The Taihu Lake Basin consists of Shanghai, Hangzhou, Jiaxing, Huzhou, Suzhou, Wuxi, Changzhou, and Zhenjiang (Figure 1), which have rich tourist resources because of their advantageous geographical location and superior environment. In 2020, the total tourism revenue of the eight cities was about CNY 13048 billion, accounting for 12.07% of the regional GDP. As a green industry with low carbon and environmental protection, the tourism industry is of great significance for promoting the economic development of the region. However, in recent years, problems such as inefficient operation, environmental pollution, and slow industrial upgrading have been relatively prominent in the development process of the tourism industry, and there is still a gap in achieving the goal of high-quality development.

The Construction of the Evaluation Index System
Accurately grasping the connotation of high-quality development is the basis of sci-

The Construction of the Evaluation Index System
Accurately grasping the connotation of high-quality development is the basis of scientifically constructing a high-quality evaluation index system of tourism. High-quality development emphasizes the high quality of the process and the results of economic system development, and it is a summary and continuation of the "Five Development Concepts", including innovative development, coordinated development, green development, open development, and shared development. It was formulated on the basis of a profound review of the experience and lessons of development at home and abroad, and it was put forward in response to the prominent contradictions and problems in China's development. Innovative development focuses on higher quality and efficiency to solve the problem of the driving force of development; coordinated development focuses on solving the imbalanced problem; green development gives high priority to ecological well-being and focuses on the harmony between man and nature; open development focuses on deeply integrating into the world economy to solve the problem of inter-linkage between domestic and external development; shared development focuses on improving people's well-being and enhancing the sense of contentment and happiness.
On this basis, this study considered that high-quality tourism development is the comprehensive promotion of the quality and benefit of tourism, which includes the deeper green development concept, stronger innovation ability, better industrial structure, better supply quality, and higher comprehensive benefits. Therefore, we established an evaluation system of high-quality development of tourism that included the innovative development system representing the driving force of tourism development, the coordination development system testing tourism and social economy system, the green development system solving the tourism externalities and ecological symbiosis, the open system reflecting the internal and external linkage of tourism, the shared development system examining tourism publicity and public welfare, and the cultural and tourism resource system embodying the characteristics and development foundation of tourism (Table 1). In addition, considering that high-quality development pays more attention to the evaluation of the efficiency structure index, this study therefore mainly selected tourism labor productivity, tourism income growth rate and growth elasticity, tourism industry agglomeration degree, and so on as specific indicators.  Note: Tourism labor productivity is the ratio of the number of domestic tourism receptions to the number of accommodation and catering employees; the proportion of people employed in tourism is the ratio of the number of people employed in accommodation and catering to the number of people employed in tertiary industry; the elasticity coefficient of tourism growth is the ratio of the growth rate of tourism income to the regional GDP growth rate; the agglomeration degree of tourism industry is the ratio between the proportion of regional tourism income in regional GDP and that of total tourism income; the coordination index of tourism industry with urbanization, regional economy and ecological environment is calculated by coupling method on the basis of reference of relevant scholars; rural tourism attraction point density is the ratio of the sum of orchard areas, tea garden areas, aquatic product breeding areas and forest areas to rural land areas. The health distance model was first applied by Chen Gao to the ecosystem evaluation system with reference to the idea of system set [46]. It is a method of evaluating whether the ecosystem is healthy or not. Later, it was introduced into the mismatch research of urban living environment, tourism economic system, and other fields. The model can scientifically measure the degree of deviation from the optimal allocation state between the various subsystems of the tourism industry and among the factors within the system. In this study, the healthy distance model was introduced into the measurement of the mismatch degree of high-quality tourism development. It was used to test whether the interference of the internal and external environment can lead the actual state of tourism system to deviate from its high-quality goal. Therefore, it can use the combined distance between the two states to measure the deviation degree of the tourism industry subsystem. Suppose that A and B are two different operating systems of tourism, where A is for the optimal state of tourism development system, B is for the actual state of tourism development system, X a1 , X a2 , . . . , X an are for the internal factors of system A, and X b1 , X b2 , . . . , X bn are the internal factors of system B ( Figure 2). The specific calculation steps are as follows: Firstly, the calculation method of the relative distance of the positive index is Secondly, the calculation method of the relative distance of the negative index is Finally, the relative comprehensive health distance from A to B is where HD(A, B) is relative healthy distance from A to B; A(x ai ) is the standard value of the high quality state of tourism industry; B(x bi ) is the actual value of the operating state of tourism industry; h i is relative healthy distance; w j is the weight of the index j. The comprehensive health distance values are all distributed between 0 and 1, and the closer it is to 1, the greater is the mismatch degree of high-quality development of the tourism industry, and vice versa.

The Obstacle Degree Model
The obstacle degree model can determine the primary and secondary relationship and influence degree of each obstacle factor by ranking the obstacle degree [47]. In order to further clarify the influencing factors of the mismatch of high-quality development of tourism in the Taihu Lake Basin, we chose the obstacle degree model for analyzing the obstacles to high-quality development of tourism in the Taihu Lake Basin. The specific formula is as follows: where Y ij is for the obstacle degree; X ij is the standardized value of index j of sample i; w j is the weight of index j. where HD(A, B) is relative healthy distance from A to B; A(xai) is the standard value of the high quality state of tourism industry; B(xbi)is the actual value of the operating state of tourism industry; hi is relative healthy distance; wj is the weight of the index j. The comprehensive health distance values are all distributed between 0 and 1, and the closer it is to 1, the greater is the mismatch degree of high-quality development of the tourism industry, and vice versa.

The Obstacle Degree Model
The obstacle degree model can determine the primary and secondary relationship and influence degree of each obstacle factor by ranking the obstacle degree [47]. In order to further clarify the influencing factors of the mismatch of high-quality development of tourism in the Taihu Lake Basin, we chose the obstacle degree model for analyzing the obstacles to high-quality development of tourism in the Taihu Lake Basin. The specific formula is as follows: where Yij is for the obstacle degree; Xij ' is the standardized value of index j of sample i; wj is the weight of index j.

Qualitative Comparative Analysis of Fuzzy Set
The method of qualitative comparative analysis (QCA) can analyze the causal relationship between conditional variables and result variables from a variety of perspectives, and it can provide logical ideas for the combination of different factors. In this study, we used the four-valued fuzzy set calibration method to transform the values of conditional variables and explanatory variables into the corresponding membership degree of fuzzy sets, which were, respectively, 0, 0.33, 0.67, and 1. The higher the value, the higher the membership degree. After the completion of the data conversion, the necessary conditions were analyzed through the results of consistency and coverage. The formula is as follows:

Qualitative Comparative Analysis of Fuzzy Set
The method of qualitative comparative analysis (QCA) can analyze the causal relationship between conditional variables and result variables from a variety of perspectives, and it can provide logical ideas for the combination of different factors. In this study, we used the four-valued fuzzy set calibration method to transform the values of conditional variables and explanatory variables into the corresponding membership degree of fuzzy sets, which were, respectively, 0, 0.33, 0.67, and 1. The higher the value, the higher the membership degree. After the completion of the data conversion, the necessary conditions were analyzed through the results of consistency and coverage. The formula is as follows: where x and y are, respectively, the antecedent condition variables set and result variables set; x i is the membership degree of X, and y i is the membership degree of Y; the thresholds for consistency and coverage are set at 0.8 and 0.9, respectively. On this basis, this study took the mismatch degree of high-quality tourism development as the dependent variable, six subsystems as independent variables to conduct conditional configuration analysis, and carried out a standardized operation according to the consistency threshold, so as to obtain the matching combination path of promoting high quality development of tourism.

Analysis of the Whole Spatiotemporal Characteristics
According to the calculation results of Formula (3), from 2010 to 2019, the mismatch degree of high-quality development of tourism in the Taihu Lake Basin presented a downward trend, and the mean value of mismatch degree decreased from 0.7117 to 0.6243, indicating a positive trend from the mismatch type to the matching type. The change in mismatch degree was divided into two stages, taking 2016 as the turning point. From 2010 to 2016, the mismatch degree showed an obvious tail-raising trend; from 2016 to 2019, the mismatch degree of Shanghai, Hangzhou and Suzhou decreased significantly, while the mismatch degree of other five cities showed a stable decline trend because of their similarities resources endowment and development mode of tourism. In 2019, the mismatch degree of high-quality development of tourism showed polarization characteristics-namely, the relative differences among cities-and the gap between the lowest value in Shanghai (0.2890) and the highest value in Changzhou (0.8083) was about three times, indicating that the high-quality development of tourism in the Taihu Lake Basin was dominated by the mismatch type.
Based on the results calculated by the health distance model and referring to the related studies [48][49][50], the mismatch of high-quality tourism development of the eight cities in the Taihu Lake Basin was divided into four grades (Figure 3), including medium-high match (0.000-0.399), low match (0.400-0.605), medium mismatch (0.606-0.765), and high mismatch (0.766-0.872). As can be seen from Figures 3 and 4, the difference characteristic of the high-quality development of tourism was more obvious in spatial distribution, and the level of high-quality tourism development in Shanghai, Suzhou, and Hangzhou had been improved markedly from 2010 to 2019. In 2010, Shanghai and Hangzhou were the transitional type (low match), while the other six cities belonged to high mismatch type. In 2013, five cities still were the high mismatch type-namely, Zhenjiang, Changzhou, Wuxi, Huzhou, and Jiaxing-and there were already three cities in the transitional type because of the improvement of tourism development in Suzhou; in 2015, Huzhou was promoted to the medium mismatch type with the decrease in the mismatch degree of the high-quality development of tourism industry. Although the mismatch degree of the other seven cities decreased, the mismatch type did not change. In 2017, Shanghai's mismatch degree decreased to 0.3759 and developed into the only city of the match type, while the other cities were still in the mismatch type. In 2019, Shanghai and Hangzhou had become the matching type, Suzhou was still in the transitional type, and Huzhou, Wuxi, Zhenjiang, Changzhou, and Jiaxing belonged to the mismatch type. However, the difference between Shanghai with the lowest mismatch degree and Changzhou with the highest mismatch degree was 0.5193, which further showed the uneven speed of high-quality development in tourism among cities of the Taihu Lake Basin.

The Analysis of Six Major System Mismatch Degree
As for the mismatch degree of the six major systems ( Figure 5), except for the gree system and the cultural and tourism resource system, the other four systems had n

The Analysis of Six Major System Mismatch Degree
As for the mismatch degree of the six major systems ( Figure 5), except for the green system and the cultural and tourism resource system, the other four systems had not reached the matching level. Among them, the green system and the cultural and tourism resources system were in the matching type, and the overall change was relatively stable, which indicated that the ecological governance effect in the Taihu Lake Basin was remarkable in recent years and that the development and protection of cultural and tourism resources were well coordinated; the mismatch degree of the sharing system was constantly reduced, reflecting the improvement in people's livelihoods in the region; the mismatch degree of the coordination system decreased significantly, and was promoted to the matching type in 2018, which truly reflected that economic environment was the guarantee of tourism development, ecological environment was the premise of tourism development, and urban progress was the driving force of tourism development; the mismatch degree of the innovation system presented a declining trend, but always remained at a high level, showing that the driving mechanism of innovation of the Taihu Lake Basin needed to be further improved; the mismatch degree of the open system was also decreasing, but it was always at the general mismatch level. Because the openness level of the Taihu Lake Basin was not high, and cultural and tourism communication channels were not smooth, it was urgent to break down administrative barriers and strengthen cooperation between the eight cities.

The Diagnosis of Obstacle Factors
This study introduced the obstacle degree model to identify the obstacle factors and influence degree of eight cities in the Taihu Lake Basin (Table 2 and Figure 6). In terms of the six systems, the innovation development system was the biggest obstacle affecting most cities. The values of obstacle degree of innovation development systems in Wuxi, Zhenjiang, Changzhou, Huzhou, Hangzhou, and Jiaxing were all over 26%. The main obstacle factors of Suzhou and Shanghai were the open development system and the coordinated development, respectively ( Figure 6). In terms of the specific indicators, expenditures for science, the number of tourism professional students, book publishing, and cultural and artistic performances were the common obstacle factors of mismatch type cities. For Wuxi, Zhenjiang, Huzhou, Changzhou, and Jiaxing, tourism human capital was the weak spot that hindered the development of the innovation system, poor cultural communication restricted the establishment of a tourism destination image and cultural exchange, and the density of rural tourism attractions was also a prominent obstacle factor. For Shanghai and Hangzhou, the density of attraction points of rural tourism was not high (Table 2). Therefore, it is urgent to further promote the in-depth development of cultural and tourism integration by optimizing and integrating rural tourism resources. In conclusion, the mismatch type was dominated by external environmental barriers, while the matching type was dominated by internal environmental barriers. That is to say, the more advanced the development was, the more attention was paid to the system coordination of tourism industry, foreign exchange income, and other self-development issues.
reached the matching level. Among them, the green system and the cultural and tourism resources system were in the matching type, and the overall change was relatively stable, which indicated that the ecological governance effect in the Taihu Lake Basin was remarkable in recent years and that the development and protection of cultural and tourism resources were well coordinated; the mismatch degree of the sharing system was constantly reduced, reflecting the improvement in people's livelihoods in the region; the mismatch degree of the coordination system decreased significantly, and was promoted to the matching type in 2018, which truly reflected that economic environment was the guarantee of tourism development, ecological environment was the premise of tourism development, and urban progress was the driving force of tourism development; the mismatch degree of the innovation system presented a declining trend, but always remained at a high level, showing that the driving mechanism of innovation of the Taihu Lake Basin needed to be further improved; the mismatch degree of the open system was also decreasing, but it was always at the general mismatch level. Because the openness level of the Taihu Lake Basin was not high, and cultural and tourism communication channels were not smooth, it was urgent to break down administrative barriers and strengthen cooperation between the eight cities.

The Diagnosis of Obstacle Factors
This study introduced the obstacle degree model to identify the obstacle factors and influence degree of eight cities in the Taihu Lake Basin (Table 2 and Figure 6). In terms of the six systems, the innovation development system was the biggest obstacle affecting most cities. The values of obstacle degree of innovation development systems in Wuxi, Zhenjiang, Changzhou, Huzhou, Hangzhou, and Jiaxing were all over 26%. The main obstacle factors of Suzhou and Shanghai were the open development system and the coordinated development, respectively ( Figure 6). In terms of the specific indicators, expenditures for science, the number of tourism professional students, book publishing, and cultural and artistic performances were the common obstacle factors of mismatch type cities. For Wuxi, Zhenjiang, Huzhou, Changzhou, and Jiaxing, tourism human capital was the weak spot that hindered the development of the innovation system, poor cultural com-  ( Table 2). Therefore, it is urgent to further promote the in-depth development of cultural and tourism integration by optimizing and integrating rural tourism resources. In conclusion, the mismatch type was dominated by external environmental barriers, while the matching type was dominated by internal environmental barriers. That is to say, the more advanced the development was, the more attention was paid to the system coordination of tourism industry, foreign exchange income, and other self-development issues. Figure 6. The obstacle degree of high-quality development mismatch of tourism in the Taihu Lake Basin.

The Analysis of Formation Mechanism
The above calculation results show that the obstacle factors of different mismatch type areas were different, and a single obstacle factor could hardly explain the dynamic mechanism that affected the high-quality tourism development of the Taihu Lake Basin. Therefore, using the QCA software, this study took the 13 subsystems as conditional variables (V1~V13) and the high-quality development mismatch degree of tourism as the result variables and tested whether all conditional variables were sufficient and necessary conditions for the result variables (Table 3). On the whole, V4 is the basic condition among all

The Analysis of Formation Mechanism
The above calculation results show that the obstacle factors of different mismatch type areas were different, and a single obstacle factor could hardly explain the dynamic mechanism that affected the high-quality tourism development of the Taihu Lake Basin. Therefore, using the QCA software, this study took the 13 subsystems as conditional variables (V 1~V13 ) and the high-quality development mismatch degree of tourism as the result variables and tested whether all conditional variables were sufficient and necessary conditions for the result variables (Table 3). On the whole, V 4 is the basic condition among all the variables. When it is in a state of imbalance, there will be disharmony between the tourism industry and socioeconomic environmental system, and the coordination and mutual promotion of multiple systems will fail, leading to the mismatch results; when it is in equilibrium state, there will be a benign mutual promotion effect between multiple systems, thus producing matching results. It can be seen that the imbalance and equilibrium of the system have significant negative and positive driving effects on the results.
As shown in Figure 7, there are three configuration combinations (Y 1 , Y 2 , Y 3 ) that lead to mismatch. Y 1 fits the mismatch type. Most of the conditional variables are in the mismatch state except for water ecological quality and air quality, which will inevitably aggravate the increase in the health distance gap; Y 2 fits the transitional type. Compared with Y 1 , this type of region pays more attention to the improvement in ecological environment and human capital; Y 3 fits the matching type. Because the health distance of most antecedent condition variables are shortened, it will inevitably lead to matching results. However, there are still shortcomings in system coordination imbalance, people's livelihood sharing, and poor external communication.
The consistency 1 1 1 Overall consistency 1 Overall coverage 0.688 Note: • represents the existence of core conditions； represents the existence the edge ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism resources are significant, attracting high-end talent. However, the obstacle f matching type are mainly internal environmental factors-that is, the higher the ment stage, the more attention is paid to the internal development of tourism The consistency 1 1 1 1 Overall consistency 1 Overall coverage 0.688 Note: • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shanghai and Hangzhou are suitable for this development path, in which the geographical advantages are prominent and innovation ability and relative advantages of tourism human resources are significant, attracting high-end talent. However, the obstacle factors of matching type are mainly internal environmental factors-that is, the higher the development stage, the more attention is paid to the internal development of tourism industry. Note: Vn is positive antecedent condition; ~Vn is negative antece symbol between variables; Y1, Y2, and Y3 are three configuration quality tourism development.

Paths for Promoting High-Quality Development of Touris
Through the systematic analysis of the empirical re the one-way path and the overall consistency in combin threshold requirements, and the overall coverage was 0. tion paths with different conditions could explain the rea a great extent. Therefore, there are three types of combina high-quality development of tourism in the Taihu Lake B Firstly, it is the development path of comprehensive-c hai and Hangzhou are suitable for this development path vantages are prominent and innovation ability and relativ resources are significant, attracting high-end talent. Ho matching type are mainly internal environmental factorsment stage, the more attention is paid to the internal de  • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shanghai and Hangzhou are suitable for this development path, in which the geographical advantages are prominent and innovation ability and relative advantages of tourism human resources are significant, attracting high-end talent. However, the obstacle factors of matching type are mainly internal environmental factors-that is, the higher the development stage, the more attention is paid to the internal development of tourism industry. • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shanghai and Hangzhou are suitable for this development path, in which the geographical advantages are prominent and innovation ability and relative advantages of tourism human resources are significant, attracting high-end talent. However, the obstacle factors of matching type are mainly internal environmental factors-that is, the higher the development stage, the more attention is paid to the internal development of tourism industry. Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism resources are significant, attracting high-end talent. However, the obstacle f matching type are mainly internal environmental factors-that is, the higher the ment stage, the more attention is paid to the internal development of tourism • represents the existence of core conditions； represents the existen ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent conditio symbol between variables; Y1, Y2, and Y3 are three configurations leading to quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborativ hai and Hangzhou are suitable for this development path, in which vantages are prominent and innovation ability and relative advantag resources are significant, attracting high-end talent. However, the matching type are mainly internal environmental factors-that is, the ment stage, the more attention is paid to the internal development

Paths for Promoting High-Quality Development of Touris
Through the systematic analysis of the empirical re the one-way path and the overall consistency in combin threshold requirements, and the overall coverage was 0. tion paths with different conditions could explain the rea a great extent. Therefore, there are three types of combina high-quality development of tourism in the Taihu Lake B Firstly, it is the development path of comprehensive-c hai and Hangzhou are suitable for this development path vantages are prominent and innovation ability and relativ resources are significant, attracting high-end talent. Ho matching type are mainly internal environmental factorsment stage, the more attention is paid to the internal de • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shanghai and Hangzhou are suitable for this development path, in which the geographical advantages are prominent and innovation ability and relative advantages of tourism human resources are significant, attracting high-end talent. However, the obstacle factors of matching type are mainly internal environmental factors-that is, the higher the development stage, the more attention is paid to the internal development of tourism industry. Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism resources are significant, attracting high-end talent. However, the obstacle f matching type are mainly internal environmental factors-that is, the higher the ment stage, the more attention is paid to the internal development of tourism Note: Vn is positive antecedent condition; ~Vn is negative antecedent conditio symbol between variables; Y1, Y2, and Y3 are three configurations leading to quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborativ hai and Hangzhou are suitable for this development path, in which vantages are prominent and innovation ability and relative advantag resources are significant, attracting high-end talent. However, the matching type are mainly internal environmental factors-that is, the ment stage, the more attention is paid to the internal development

Paths for Promoting High-Quality Development of Touris
Through the systematic analysis of the empirical re the one-way path and the overall consistency in combin threshold requirements, and the overall coverage was 0. tion paths with different conditions could explain the rea a great extent. Therefore, there are three types of combina high-quality development of tourism in the Taihu Lake B Firstly, it is the development path of comprehensive-c hai and Hangzhou are suitable for this development path vantages are prominent and innovation ability and relativ resources are significant, attracting high-end talent. Ho matching type are mainly internal environmental factorsment stage, the more attention is paid to the internal de Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism resources are significant, attracting high-end talent. However, the obstacle f matching type are mainly internal environmental factors-that is, the higher the ment stage, the more attention is paid to the internal development of tourism Note: Vn is positive antecedent condition; ~Vn is negative antecedent conditio symbol between variables; Y1, Y2, and Y3 are three configurations leading to quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborativ hai and Hangzhou are suitable for this development path, in which vantages are prominent and innovation ability and relative advantag resources are significant, attracting high-end talent. However, the matching type are mainly internal environmental factors-that is, the ment stage, the more attention is paid to the internal development

Paths for Promoting High-Quality Development of Touris
Through the systematic analysis of the empirical re the one-way path and the overall consistency in combin threshold requirements, and the overall coverage was 0. tion paths with different conditions could explain the rea a great extent. Therefore, there are three types of combina high-quality development of tourism in the Taihu Lake B Firstly, it is the development path of comprehensive-c hai and Hangzhou are suitable for this development path vantages are prominent and innovation ability and relativ resources are significant, attracting high-end talent. Ho matching type are mainly internal environmental factorsment stage, the more attention is paid to the internal de Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism resources are significant, attracting high-end talent. However, the obstacle f matching type are mainly internal environmental factors-that is, the higher the Note: Vn is positive antecedent condition; ~Vn is negative antecedent conditio symbol between variables; Y1, Y2, and Y3 are three configurations leading to quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborativ hai and Hangzhou are suitable for this development path, in which vantages are prominent and innovation ability and relative advantag resources are significant, attracting high-end talent. However, the matching type are mainly internal environmental factors-that is, the Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism resources are significant, attracting high-end talent. However, the obstacle f Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp vantages are prominent and innovation ability and relative advantages of tourism Note: Vn is positive antecedent condition; ~Vn is negative antece symbol between variables; Y1, Y2, and Y3 are three configuration quality tourism development.

Paths for Promoting High-Quality Development of Touris
Through the systematic analysis of the empirical re the one-way path and the overall consistency in combin threshold requirements, and the overall coverage was 0. tion paths with different conditions could explain the rea a great extent. Therefore, there are three types of combina high-quality development of tourism in the Taihu Lake B Firstly, it is the development path of comprehensive-c hai and Hangzhou are suitable for this development path vantages are prominent and innovation ability and relativ Note: Vn is positive antecedent condition; ~Vn is negative antecedent conditio symbol between variables; Y1, Y2, and Y3 are three configurations leading to quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin. Firstly, it is the development path of comprehensive-collaborativ hai and Hangzhou are suitable for this development path, in which vantages are prominent and innovation ability and relative advantag ⊗ Cultural protection in place (V 12 ) Note: • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shanghai and Hangzhou are suitable for this development path, in which the geographical ad- Note: • represents the existence of core conditions； represents the existence the edge ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio hai and Hangzhou are suitable for this development path, in which the geograp

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborativ hai and Hangzhou are suitable for this development path, in which

Paths for Promoting High-Quality Development of Touris
Through the systematic analysis of the empirical re the one-way path and the overall consistency in combin threshold requirements, and the overall coverage was 0. tion paths with different conditions could explain the rea a great extent. Therefore, there are three types of combina high-quality development of tourism in the Taihu  • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shang- Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the in symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch quality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is kn the one-way path and the overall consistency in combined path were 1, which threshold requirements, and the overall coverage was 0.688, showing that the tion paths with different conditions could explain the reasons for the matching a great extent. Therefore, there are three types of combination paths that can pro high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotio

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table the one-way path and the overall consistency in combined path we threshold requirements, and the overall coverage was 0.688, showin tion paths with different conditions could explain the reasons for the a great extent. Therefore, there are three types of combination paths t high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborativ • represents the existence of core conditions； represents the existence the edge condition ；⊗ represents the absence of the condition.
Note: Vn is positive antecedent condition; ~Vn is negative antecedent condition; * is the intersection symbol between variables; Y1, Y2, and Y3 are three configurations leading to the mismatch of highquality tourism development.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combina-represents the existence the edge condition; ⊗ represents the absence of the condition. Figure 7. The influencing mechanism of the mismatch of high-quality tourism development. Note: V n is positive antecedent condition;~V n is negative antecedent condition; * is the intersection symbol between variables; Y 1 , Y 2 , and Y 3 are three configurations leading to the mismatch of high-quality tourism development.
Therefore, it is obvious that the spatial-temporal pattern of high-quality tourism development in the Taihu Lake Basin is formed by six systems through a specific path ( Figure 7). As the first of the "Five Development Concepts", the innovation development system focused on solving the driving force of high-quality development of the tourism industry, while the number of invention patents granted, scientific expenditure, and human capital were the short board of tourism development in Changzhou, Wuxi, Zhenjiang, Jiaxing, and Huzhou; the coordinated development system focused on solving the problem of the balanced distribution of tourism industry among cities and the coordinated development of social, economic, and ecological systems within the city. At present, although the coordination system in the Taihu Lake Basin belongs to the matching type, its actual level within the city was not high, with the existence of great differences; the green development system focused on solving the balance between the externality of tourism industry development and ecological environment construction, which was the direct driving force affecting the sustainable and healthy development of tourism; the open development system solved the problem of internal and external linkage of tourism development among different cities. Due to the lack of overall linkage in tourism development of the Taihu Lake Basin, it was not conducive to a display of the guiding function of the open development system; the shared development system belonged to the external driving force, which focused on solving the problems of publicity and public welfare of tourism development. In the Taihu Lake Basin, Shanghai, Hangzhou, and Suzhou had absolute financial advantages, and their public service supply capacity was relatively high, but other cities were relatively weak; the culture and tourism resources system was a prerequisite for the development of tourism. Except for Suzhou, the density of rural tourism attractions in other cities was not high, which was bad for the market-oriented development and high-quality development of the culture and tourism industry.

Paths for Promoting High-Quality Development of Tourism
Through the systematic analysis of the empirical results (Table 3), it is known that the one-way path and the overall consistency in combined path were 1, which met the threshold requirements, and the overall coverage was 0.688, showing that the combination paths with different conditions could explain the reasons for the matching results to a great extent. Therefore, there are three types of combination paths that can promote the high-quality development of tourism in the Taihu Lake Basin.
Firstly, it is the development path of comprehensive-collaborative promotion. Shanghai and Hangzhou are suitable for this development path, in which the geographical advantages are prominent and innovation ability and relative advantages of tourism human resources are significant, attracting high-end talent. However, the obstacle factors of matching type are mainly internal environmental factors-that is, the higher the development stage, the more attention is paid to the internal development of tourism industry. Therefore, it is necessary to pay more attention to the coordinated development of the tourism industry inside and outside, to smooth cultural and travel communication, and to external communication channels to meet the satisfaction of people's livelihood, while at the same time further enhancing the capacity of tourism innovation and human resources to improve the high-quality development level of the tourism industry.
Secondly, it is the development path of communicative-sharing promotion. Suzhou belongs to the transitional type of the high-quality development of tourism, more suited to this type of development path. At present, poor cultural and tourism communication, imperfect public services, and low satisfaction of people's livelihood are the core resistance conditions leading to the mismatch pattern in Suzhou. However, Suzhou has its own distinctive tourism resources and has certain advantages in giving full play to the driving force of innovation and cultivating human capital to promote the transformation and upgrading of tourism and improve its quality and efficiency, which can achieve a new leap forward in tourism development.
Finally, it is the development path of innovative-resource-open promotion. Wuxi, Changzhou, Zhenjiang, Huzhou, and Jiaxing, which have high quality tourism resources, are suitable for the composite path. These five cities are faced with practical problems such as weak tourism development foundation, insufficient financial support, and lack of scientific and technological input, leading to weak innovation ability, lack of human resources, and poor cultural and travel communication. Therefore, it is urgent to make up the disadvantages to highlight the advantages. In recent years, Wuxi, Changzhou, Zhenjiang, and Huzhou adhered to the path of ecological priority and green development; thus, ecological quality and environmental quality have been significantly improved, becoming the main advantages of the green and high-quality development of tourism.

Policy Recommendations
The dominant development system of mismatch type, transition type, and matching type is different, and the cooperation mechanism of high-quality development of tourism in the Taihu Lake Basin remains to be clarified. From this, cities of mismatch type and transition type should give priority to improving the external environment system of the tourism industry, such as improvements in the innovative system, green system, and sharing system, while the cities of matched type should focus on improving the industrial performance of tourism and promoting its coordinated development with the social and economic environment system. At the same time, the national vertical intervention should focus on the functional zoning and complementary advantages of the eight cities, aiming at the coordination of the six systems, to create a cooperative environment and the coordination order of the tourism industry in the Taihu Lake Basin, forming an efficient, long-term, and sustainable cooperation mechanism.
Shanghai, Hangzhou, Jiaxing, Huzhou, Suzhou, Wuxi, Changzhou, and Zhenjiang are different in the aspects of mismatch type characteristics, restrictive factors, and development advantages of the tourism industry. Therefore, according to the actual development status and the guidance of three combination paths, we put forward different development priorities for different cities of the Taihu Lake Basin. Shanghai should emphasize the optimization of high-quality tourism supply; innovation in the tourism development model, including online travel by live streaming, micro tourism, etc.; actively cultivate digital tourism enterprises; and build a new digital tourism ecosystem throughout the chain to improve quality and increase the performance of tourism. Hangzhou should promote the deep integration of culture and tourism and construct a modern tourism system based on cultural and ecological advantages. Suzhou should increase policy support for developing the tourism industry, improve the public service system, and focus on promoting rural tourism, red tourism, tourism performance, and other formats. Huzhou, based on the advantages of ecological and cultural resources, innovates the green development of tourism in the whole region, constructs the industrial system and governance system of leisure and vacation tourism, and enhances the influence of foreign tourism destinations. Wuxi should stimulate the innovation power of market subjects, promote the in-depth integration of tourism and other industries, and speed up the digital transformation of cultural and tourism industries. Changzhou should speed up the promotion of urban historical and cultural tourism and break through the bottleneck of rural tourism development to help revitalize rural tourism. Zhenjiang and Jiaxing should focus on stimulating the potential of cultural and tourism consumption and guide the upgrading of tourist attractions.

Conclusions
(1) The mismatch degree of high-quality development of tourism in the Taihu Lake Basin shows a downward trend from 2010 to 2019, with the phenomenon of "tail-raising" appearing in 2016, and has the characteristics of polarization. From a city perspective, Shanghai and Hangzhou are the matching type, Suzhou belongs to the transitional type, and Wuxi, Huzhou, Changzhou, Zhenjiang, and Jiaxing are the mismatch type. From the six systems perspective, except the green system and the cultural and tourism resource system, the other four systems are still in mismatch type.
(2) The dominant development systems of the different mismatch types are different. The mismatch cities are dominated by external environmental obstacles, while the matching cities are dominated by internal environmental obstacles, which shows that the more a city develops to the advanced matching stage, the more attention is paid to the internal development of the tourism industry, which is also an important reason that the mismatch of the high-quality tourism development in the Taihu Lake Basin has been hovering for a long time.
(3) The high-quality development paths of tourism in the Taihu Lake Basin include comprehensive-collaborative promotion, communicative-sharing promotion, and innovativeresource-open promotion. On this basis, it is necessary to comprehensively improve the internal and external driving forces of tourism development, taking the coordination of six systems as the goal, creating a cooperative environment of the tourism industry in eight cities, coordinating the order and dislocation of complementary development, and forming an efficient, long-term, and sustainable cooperation mechanism.
(4) This research was subject to some limitations, which should be considered for further research. Due to the lack of a clear optimal standard for high-quality development of tourism, the standard set in the study was to refer to the value of a certain time point in the tourism development of eight cities, and its adaptability remains to be further discussed. Furthermore, this study used the healthy distance model to evaluate the mismatch degree of the high-quality development of tourism; whether it can truly and comprehensively reflect the objective reality needs to be further studied, especially in the prediction of mismatch state of high-quality tourism development in the future.