中国旅游业绿色发展效率时空演变特征及影响机理
刘雨婧, 唐健雄

Spatio-temporal evolution characteristics and influencing mechanism of green development efficiency of tourism industry in China
LIU Yu-jing, TANG Jian-xiong
图3 2008—2018年中国三大地区旅游业绿色发展效率及差异变化趋势
Fig. 3 The difference trends of TGDE in three regions of China from 2008 to 2018