Affiliation: | 1. Grassland Research Institute, Chinese Academy of Agricultural Sciences, Inner Mongolia, Hohhot 010010, PR China;2. College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, PR China;3. Inner Mongolia Key Laboratory of Disaster and Ecological Security on the Mongolian Plateau, Hohhot 010022, PR China;4. Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, Hohhot 010022, PR China;2. Bank of Italy, Directorate General for Economics, Statistics, and Research, Rome, Italy |