Faculty of Geography Yunnan Normal University Kunming 650500 China;
Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan Kunming 650500 China;
Center for Geospatial Information Engineering and Technology of Yunnan Province Kunming 650500 China;
Faculty of Geography Yunnan Normal University Kunming 650500 China;
Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan Kunming 650500 China;
Center for Geospatial Information Engineering and Technology of Yunnan Province Kunming 650500 China;