长江中游城市群旅游产业集聚对旅游生态安全的门槛效应研究

Research on the Threshold Effect of Tourism Industry Agglomeration on Tourism Ecological Security of Urban Agglomeration in the Middle Reaches of the Yangtze River

基于DPSIR模型构建旅游生态安全评价体系,运用区位熵和熵值法分别测度2010—2020年长江中游城市群旅游产业集聚和旅游生态安全水平,并构建面板门槛模型,探究旅游产业集聚对旅游生态安全的门槛效应及其在三个子城市群内的作用差异。结果表明:东南部区域旅游产业集聚水平整体较高且呈上升趋势,西北部区域水平较低且呈下降趋势;旅游生态安全水平整体呈现上升趋势,但地区之间差距较大,高值区始终稳固在武汉、长沙和南昌,低值区主要集中在孝感、鄂州和黄石等城市;在全区域内,以旅游产业集聚、旅游发展水平和旅游负荷水平为门槛变量时,均存在双重门槛效应,对旅游生态安全水平的提高起促进作用,但在三个子城市群内的门槛效应存在一定差异。

A tourism ecological security evaluation system is built based on the DPSIR model,and the regional entropy and entropy method are used to measure the level of tourism industry agglomeration and tourism ecological security of the urban agglomeration in the middle reaches of the Yangtze River from 2010 to 2020,and the panel threshold model is used to deeply explore the threshold effect of tourism industry agglomeration on tourism ecological security and its role differences in the three sub-urban agglomeration.The results show that:The overall level of tourism industry agglomeration in the southeast region is relatively high and rising,while that in the northwest region is relatively low and declining.The overall level of tourism ecological security is showing an upward trend,but there is still a significant gap between regions;high value areas have always been stable in Wuhan,Changsha,and Nanchang,while low value areas are mainly concentrated in cities such as Xiaogan,Ezhou,and Huangshi.In the whole region,when the research takes tourism industry agglomeration,tourism development level and tourism load level as threshold variables,there is a double threshold effect,which promotes the tourism ecological security level,but there are certain differences in the threshold effect within the three sub-urban agglomeration.