| In recent years,more and more scholars have paid attention to the relationship between tourism flow and the strength of tourism economic ties,but the conclusions of many studies are different.The earliest studies mainly focused on the one-way impact of tourism economic connection strength on tourism flow or the inevitability of the mutual coupling relationship between them.However,later empirical research found that there is no necessary coupling relationship between the two.The author believes that the reason for the above-mentioned empirical research conclusions is that the relevant research on the interaction mechanism between tourism flow and tourism economic linkages strength is not deep enough to reveal the formation path of coupling or non-coupling between them.This paper first clarifies the interaction mechanism of tourism flow and tourism economic connection strength by reading a large number of previous research results,and then builds a four-dimensional analysis framework for the coupled and coordinated development of tourism flow and tourism economic connection strength based on system theory and system coupling coordination theory.It is believed that the coordinated development of tourism flow and tourism economic connection strength coupling needs to be analyzed from the four dimensions of tourism flow,tourism economic connection strength subsystems,a higher-level composite system formed by the interaction of the two subsystems,and external environmental influences.Based on this theoretical analysis framework,this study takes 19 provinces and cities in southern Vietnam as a case study,combines the primary data of the questionnaire survey with statistical data,and uses social network theory and methods to construct two spatial networks of tourism flow and tourism economic connection strength in southern Vietnam,analyze the overall spatial network structure of each subsystem and the status and function of each province and city in the network,and provide a basis for improving the coordinated development level of each subsystem and realizing its coupling coordination.On this basis,this study uses the coupling coordination model to measure the coupling and coordination level of tourism flow and tourism economic connection strength in each province and city,and finds its coupling coordination degree and characteristics;explore the internal mechanism of the uncoordinated development of tourism flow and tourism economic connection strength in various provinces and cities by comparing their structures.Finally,using geographic detectors to identify the key influencing factors of the coupled and coordinated development of tourism flow and tourism economic connection strength,so as to provide scientific decision-making reference for improving the coupling and coordinated development of tourism flow and tourism economic connection strength in southern Vietnam.The following main conclusions were obtained through the research:(1)The level of coordinated development of the spatial network system of tourism flow in southern Vietnam is low: the scale of tourism flow in the 19 provinces and cities in southern Vietnam is significantly different,the density of the spatial network structure of tourism flow in southern Vietnam is low,and the network connection is relatively loose;the agglomeration trend of this network is strong,the core-periphery structure is obvious,and the network connections are mainly concentrated in the core area.In addition to the strong interconnection among the networks in the southeast,the provinces and cities in the southwest mainly rely on their connections with Ho Chi Minh City and Can Tho City to integrate into the overall network structure,and there are fewer large-scale tourism flows between them.The function distribution of each node in the tourism flow space network system in southern Vietnam is unreasonable.A few core nodes serve as multiple functions such as starting station,terminal station,transfer station,and core destination at the same time,while most edge nodes mainly serve as additional tourist destination functions.From the perspective of the spatial evolution model,the overall spatial pattern of tourism flow in southern Vietnamis in the "single node" turning to "multi-node",the initial generation turns to the transitional stage of development.(2)The level of coordinated development of the spatial network system of the intensity of tourism economic ties in southern Vietnam is relatively low:there is a very large gap in the amount of tourism economic ties among the provinces and cities in southern Vietnam,and this gap has been relatively stable within ten years.The spatial network density of the intensity of tourism economic ties in southern Vietnam is very low(0.1),and most of the nodes have not produced high-intensity tourism economic ties;the network agglomeration situation is particularly prominent,the core-periphery structure is particularly obvious,and the high-intensity tourism economic ties are mainly concentrated between core nodes such as Ho Chi Minh City,Can Tho,Kien Giang,and An Giang,the driving force of the core area to the peripheral area is very limited.The distribution of functions among the provinces and cities in southern Vietnam in the spatial network of tourism economic connection intensity is unreasonable.The overall network is overly dependent on Ho Chi Minh City,the only source of tourism economic radiation,and other provinces and cities mainly integrate into the overall network by absorbing the tourism economic radiation of Ho Chi Minh City.The network structure is therefore extremely simple and unstable.From the perspective of regional core nodes,the spatial network system of tourism economic connection strength in southern Vietnam is still in its infancy in the "single node" spatial development model.(3)There are varying degrees of uncoordinated development of tourism flow and tourism economic linkage strength in most provinces and cities in southern Vietnam: In terms of aggregate coupling and coordination,except for Ho Chi Minh City and Ba Ria-Vung Tau,the measured value of the strength coupling coordination degree of the tourism flow and tourism economic linkages of other provinces and cities in southern Vietnam is low(all below0.5),there is a relatively serious uncoordinated development state between the overall regional tourism flow and the intensity of tourism economic ties.Regarding the characteristics of coupled and coordinated development,it is found that the provinces and cities in southern Vietnam are in the development type of highly coupled-onated,which specifically includes two characteristics.First,the development level of each subsystem of tourism flow and tourism economic connection strength is relatively balanced(coupling degree is mostly above 0.7)and both are relatively low.Second,the development level of tourism economic connection intensity lags behind the development level of tourism flow.In terms of the degree of network structure coupling,the internal mechanism of the uncoordinated development of tourism flow and tourism economic connection strength in southern Vietnam is that in the process of interconnection between provinces and cities,there are few large-scale tourism flows(which is the most likely to form one-third of large-scale tourism flows),and among the few existing large-scale tourism flows,only one-third can form corresponding high-intensity tourism economic ties.This leads to the development characteristics of high coupling imbalance shown above,such as the low development levels of tourism flow and tourism economic connection intensity,and the development level of tourism economic connection intensity lagging behind the development level of tourism flow.(4)The development conditions of each province and city,such as tourism attractiveness,tourism reception capacity,traffic location conditions,and regional economic development level,are the key influencing factors for the coupled and coordinated development of tourism flow and tourism economic connection strength.The improvement of each factor may have a greater driving force for the coordinated development of tourism flow and tourism economic connection strength(except for tourism resource endowment and time distance from Ho Chi Minh City,the detection values of other indicators are above 0.7).In addition,among the influencing factors,the popularity of tourism resources and tourism reception capacity(especially the indicators of tourism accommodation)have the strongest driving effect on the coordinated development of tourism flow and tourism economic connection strength in various provinces and cities.It is also the factor that needs to be improved most in provinces and cities with serious uncoordinated development.In order to realize the coupling and coordinated development of tourism flow and tourism economic connection strength,and improve the efficiency of regional tourism cooperation in southern Vietnam,the main suggestions are as follows:(1)build a big data platform for tourism supply and demand,and realize the information sharing of tourism demand and supply in various provinces and cities;(2)break the administrative boundaries,Strengthen the understanding of regional tourism integration;(3)Strengthen the construction of suitable tourist facilities according to their own roles and functions in tourists’ needs;(4)Make full use of economic support to develop potential tourism flows;(5)Improve the popularity of tourism resources;(6)Enrich the structure of tourism products;(7)Strengthen tourism reception capacity;(8)optimize the traffic accessibility between provinces and cities,etc.On this basis,this study also puts forward more targeted suggestions for each province and city according to the status and function of each province in the two networks of tourism flow and tourism economic connection strength,as well as its coupling and coordinated development.To sum up,the main innovations of this study are as follows: First,the system theory and system coupling and coordination theory are used to analyze the interaction relationship between tourism flow and tourism economic connection strength,and the theoretical model and four-dimensional analysis of the coupling and coordinated development of the two are constructed.The framework provides a more complete theoretical reference for empirical analysis.Second,it not only explores the degree and characteristics of the coupling coordination between the measurement of tourism flow and tourism economic connection strength,but also uses social network analysis,geographic detectors,spatial panel data and other quantitative methods to continuously explore the internal mechanism,formation path and root cause of disordered developmen,and provide a scientific basis for improving the coupling and coordinated development of tourism flow and tourism economic connection strength.Third,starting from the coupling and coordination degree of tourism flow and tourism economic connection strength,it provides a new research perspective for the hot topic of regional tourism cooperation in southern Vietnam.By discovering the uncoordinated development of the two and its root causes,it reveals the reasons for the poor efficiency of regional tourism cooperation in southern Vietnam,and finds that the efficiency of regional tourism cooperation is closely related to the level of development of each province and city,providing a scientific reference for the local tourism management department to formulate corresponding management policies. |
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