广西边境民族地区旅游扶贫效率测度与时空演化分析

广西边境民族地区旅游扶贫是我国脱贫攻坚的重要组成部分。通过数据包络分析（DEA）测算广西边境民族地区2011—2017年的旅游扶贫效率，结合Malmquist指数进行跨期动态分析，并运用ArcGIS10.0进行时空演化特征分析。结果表明：1）广西边境民族地区旅游扶贫效率处于中等偏高水平，各县（市、区）旅游扶贫综合效率时空分布差异较大，主要受纯技术效率影响；2）广西边境民族地区整体旅游扶贫Malmquist指数总体处于逐步衰退的趋势，其中规模效率变化指数贡献最大，纯技术效率变化指数次之；3）从投入产出效率角度分析，广西边境民族地区旅游扶贫效率随时间的变化表现出空间集聚态势增强的趋势，聚集程度增加；4）旅游扶贫效率类型主要分为潜力型、发展型、成熟型和衰退型4种类型，少数县（市、区）旅游扶贫效果不明显。

Measurement and spatio-temporal evolution of tourism poverty alleviation efficiency in Guangxi border ethnic areas

Tourism poverty alleviation is an important part of poverty alleviation in China. Data envelopment analysis (DEA) was used to measure the poverty alleviation efficiency of tourism in Guangxi border ethnic areas from 2011 to 2017, inter-phase dynamic analysis was conducted by combining Malmquist index.Results show that: 1)The comprehensive tourism poverty alleviation efficiency of each county fluctuates in the time series. In decomposition efficiency, tourism poverty alleviation comprehensive efficiency mainly depends on the pure technical efficiency.2)Overall tourism poverty alleviation Malmquist index of ethnic minority areas shows a gradual decline. In decomposition efficiency, scale efficiency change is the largest contribution to the index, pure technical efficiency change index, index of efficiency and technical progress is the main factor restricting tourism poverty alleviation efficiency from the point of space distribution.3) Comprehensive efficiency, pure technology efficiency and scale efficiency of tourism poverty alleviation in Guangxi border ethnic areas have spatial agglomeration.4) From the perspective of the distribution of poverty alleviation efficiency types, there are four types: potential type, development type, mature type and recession type. However, there are still a few counties which the effect of tourism poverty alleviation is not obvious.