Geographical Research, Volume. 39, Issue 7, 1654(2020)
Fig. 1. Spatial distribution of A-grade tourist attractions of China in 2001-2016
Fig. 2. Standard deviation elliptic variogram of A-grade tourist attractions of China in 2001-2016
Fig. 3. Kernel density of A-grade tourist attractions of China in 2001-2016
Fig. 4. Nearest neighbor index of A-grade tourist attractions of China in 2001-2016
Fig. 5. The relationship between the kernel density of A-grade tourist attractions of China and the per capita GDP of each province in 2016
Fig. 6. Spatio-temporal evolution of the kernel density of Beijing and South Jiangsu tourist attraction clusters in 2001-2016
Fig. 7. The layer structure of kernel density of tourist attraction clusters of China in 2016
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Zhizhong NING, Ting WANG, Xuechun YANG.
Received: May. 29, 2019
Accepted: --
Published Online: Apr. 23, 2021
The Author Email: WANG Ting (wangting@igsnrr.ac.cn)