Department of GIS, Yunnan Normal University, Kunming, China
School of Geography, Beijing Normal University, Beijing, China
Department of GIS, Yunnan Normal University, Kunming, China
Department of GIS, Yunnan Normal University, Kunming, China
Kunming NO.10 Middle School, Kunming, China
Copyright © Shuangyun Peng, Weifeng Ma, Kun Yang, Quanli Xu, Bangmei Huang et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.