Based on digital land use data from 1995 to 2000 and road data, the land use and landscapechanges of Golmud, Qumaleb and Zhidoi are studied on a macro-scale. La
Based on remote sensing and geographic information system, the spatial distribution of nation-wide wind erosion is studied, and the 1:100 000 national map of so
Sand-dust storm is a special natural disaster that frequentlyoccurs in deserts and their surrounding areas. With the data published on Surface Meteorological Mo