| Under the goal of carbon emission reduction,the environmental pollution caused by tourism industry can not be ignored.As a major national strategic area,the Yellow River Basin must take the strategic path of ecological protection.Under this background,how to form a green tourism industry in the Yellow River Basin,reduce the ecological pollution caused by tourism activities and realize regional coordinated development has become an urgent issue to be solved.It is of great significance for the sustainable development of tourism industry in the Yellow River Basin to deeply study the ecological efficiency of tourism industry and the evolution trend of spatial correlation network,explore the influencing factors of spatial correlation network,and provide the basis for reducing environmental impact and promoting the green coordinated development of tourism industry.In this paper,firstly,the index system of eco-efficiency of tourism industry was established,and the eco-efficiency of tourism industry in prefecture-level cities in the Yellow River Basin from 2010 to 2019 was measured by data envelopment analysis.Then,the spatial correlation network of eco-efficiency of tourism industry in the Yellow River Basin was established by the universal gravitation model,and the dynamic evolution process of spatial correlation network was deeply studied by social network analysis.Finally,the influencing factors of spatial correlation network were explored.The main conclusions are divided into the following four aspects:(1)The overall ecological efficiency of tourism industry in the Yellow River Basin is moderate.During the study period,the upper reaches of the river are stable and declining,with the largest increase in the middle reaches and a small increase in the lower reaches,which tends to be stable as a whole.The ecological efficiency of tourism industry in most regions shows an increasing trend,and the ecological level of tourism industry in river basins varies greatly,with obvious regional differences.(2)The high-value areas of the ecological efficiency of tourism industry in the Yellow River Basin are mainly concentrated in the central and southern parts,and the number of high-value areas is constantly rising,and rapidly spreading to the middle reaches and the east,while the proportion of low-value areas is decreasing year by year.The global correlation of watershed ecological efficiency is positive,but the local correlation is weak.The ecological efficiency is distributed in the northeast-southwest direction as a whole,radiating and developing with the south of Shanxi Province as the center,and showing the change of first gathering and then diverging,with the overall centripetal force enhanced and obvious directional characteristics.(3)The overall development of the spatial correlation network of tourism industry in the Yellow River Basin tends to be scattered,and the spatial correlation is in a weak and stable state.There are obvious agglomeration phenomena inside,and there are few marginal cities,and the core structure of the overall network has not yet been formed.(4)Spatial proximity,difference of urbanization level and difference of science and technology level are important factors to promote spatial correlation of ecological efficiency of tourism industry in the Yellow River Basin.Industrial differences and differences in the level of opening to the outside world have no significant positive impact on spatial correlation,while differences in the level of economic development show a restraining effect. |
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